Climate Tech Funding Tracker (1,002 deals)

In our climate tech market deck, you will find everything you need to understand the market
SUMMARY
Climate Tech Funding Tracker (1,008 deals) shows a market that is genuinely large, but much less lavish for the typical company than the headline totals suggest.
The gap between headline dollars and normal fundraising is extreme. Recorded capital reaches $39.52 billion, but falls to $9.97 billion once rounds above $50 million are removed, meaning a relatively small group of scale financings drives most of the market's value.
The typical climate tech round is still a conventional venture cheque. The median is $10 million, two thirds of quantified deals are below $20 million, and only 88 financings above $100 million absorb almost two thirds of all capital.
The market is broad at the bottom and narrow at the top. We found 900 funded companies, but only 90 raised more than once during the observation period, and those repeat fundraisers captured 41.4% of all recorded capital.
Clean Energy Systems is the real centre of gravity. It represents 41.6% of deals but 59.8% of capital, reflecting how quickly funding needs escalate once companies move into factories, power systems, storage fleets, nuclear plants or fusion infrastructure.
The stage distribution exposes the same split. Seed and Series A make up 70% of classified transactions but only 23.1% of classified dollars, while the median round climbs from $3.5 million at Seed to $183.5 million at Series D+.
The hardest stretch is not getting a first cheque; it is crossing the scale-up gap. The dataset contains 265 Series A deals, 114 Series Bs and only 38 Series Cs, with Carbon Removal, Building Decarbonization and Climate Adaptation showing especially thin conventional late-stage pipelines.
Strategic investors become far more important as companies mature. Their participation rises from 19% at Seed to 69.2% at Series D+, which makes sense in a market where customers, suppliers, industrial partners and offtake agreements can matter almost as much as the financing itself.
Geography matters most when the cheque gets large. Europe produces more financings and more funded companies, but North America attracts more than twice the capital and has twice as many rounds above $50 million.
The clearest read today is that climate tech has no shortage of companies or early-stage activity. What remains scarce is the combination of technical proof, commercial traction, infrastructure readiness and investor confidence required to keep raising $50 million, $100 million or even $1 billion repeatedly.

This market map, featured in our climate tech market deck, highlights top companies and startups in the climate tech market
Our funding tracker covering the climate tech market
Below is the table listing all the deals. You may find our methodology at the end of this page.
And, if you want to gain a deeper understanding of the market and its current dynamics, get our report covering the Climate Tech Market.
| Company | Category | Date | Stage | Deal size | What they do | Region | Lead investors |
|---|---|---|---|---|---|---|---|
| Furo Energy | Clean Energy Systems | September 2026 | Unknown | $4M | Provides software for planning, dispatching and commercially optimizing battery-storage systems for businesses and energy markets. | Europe | TQ Ventures |
| Tavion | Clean Energy Systems | September 2026 | Unknown | ≈$29,800,000 | Develops, owns and operates utility-scale battery-energy-storage parks across European electricity markets. | Europe | Leitmotif; Oberon Capital |
| Albatross Technology | Clean Energy Systems | September 2026 | Unknown | ≈$2,600,000 | Develops floating vertical-axis wind-turbine technology for offshore renewable-power generation. | Asia-Pacific | Not disclosed |
| HVR Energy | Low Carbon Mobility | September 2026 | Series A | ≈$23,400,000 | Develops and operates modular hydrogen-refuelling stations and a hydrogen mobility network in Spain. | Europe | Sandton |
| mCatalysis | Industrial Climate Tech | September 2026 | Seed | $5M | Uses microwave-driven catalytic processes to convert industrial off-gases, waste plastics and biomass into low-carbon synthetic fuels. | North America | HL Energy Ventures; Oxford Science Enterprises |
| Polas | Industrial Climate Tech | September 2026 | Seed | ≈$270,000 | Develops adsorption heat pumps and high-performance zeolite materials that convert low-temperature waste heat into cooling and reduce cooling electricity demand. | Asia-Pacific | Not disclosed |
| Rebaba | Clean Energy Systems | September 2026 | Seed | $4.6M | Builds stationary energy-storage systems using repurposed electric-vehicle batteries. | Europe | SISTAFUND |
| Bluecore Energy | Clean Energy Systems | September 2026 | Seed | $50M | Develops compact water-cooled nuclear reactors deployed on barges to provide firm power to ports and coastal infrastructure. | North America | Silverton Partners |
| CircoLife | Building Decarbonization Tech | September 2026 | Unknown | $4.5M | Provides energy-efficient, IoT-managed commercial air conditioning on a subscription basis to reduce cooling electricity use and lifecycle waste. | Asia-Pacific | Bharat Jaisinghani |
| Fryte | Low Carbon Mobility | September 2026 | Seed | ≈$2,100,000 | Provides software that coordinates electric-truck logistics with charging availability, route planning and charger reservations. | Europe | 4impact capital; Rethink Ventures |
| Fusionality | Clean Energy Systems | September 2026 | Seed | ≈$2,700,000 | Develops integrated measurement, simulation, data and plasma-control systems intended to accelerate commercial fusion-energy deployment. | Europe | Founderful; Playfair |
| Jet Zero Australia | Low Carbon Mobility | September 2026 | Unknown | ≈$21,600,000 | Develops a commercial-scale sustainable aviation fuel and renewable-diesel refinery using lower-carbon fuel pathways. | Asia-Pacific | Not disclosed |
| i2Cool | Building Decarbonization Tech | September 2026 | Series B | Not Disclosed | Develops electricity-free passive radiative-cooling coatings, films and materials that reduce building and infrastructure cooling loads. | Asia-Pacific | Not disclosed |
| KI13 | Industrial Climate Tech | September 2026 | Seed | $5M | Converts lignocellulosic biomass into green hydrogen and biogenic-carbon feedstocks for lower-cost synthetic fuels. | Europe | HICO Investment Group |
| B-eff | Clean Energy Systems | September 2026 | Series A | ≈$2,800,000 | Provides software and shared factory infrastructure to digitize battery development, scale-up and manufacturing yield improvement. | Asia-Pacific | Genesia Ventures |
| GridSight | Clean Energy Systems | September 2026 | Series B | $26M | Provides grid-analytics software that helps utilities identify and unlock distribution-network capacity for electrification and distributed energy resources. | Asia-Pacific | Insight Partners |
| KG Motors | Low Carbon Mobility | September 2026 | Unknown | ≈$2,900,000 | Develops and manufactures the mibot, a compact single-seat battery-electric vehicle designed for short-distance mobility. | Asia-Pacific | Not disclosed |
| Newlight Marine | Low Carbon Mobility | September 2026 | Seed | $9M | Develops hydrogen-injection retrofit technology that reduces fuel consumption and emissions from existing marine diesel engines. | North America | Not disclosed |
| Odyssey Energy Solutions | Clean Energy Systems | September 2026 | Unknown | $27M | Operates a financing, procurement and project-management platform for distributed renewable-energy deployment in emerging markets. | North America | Not disclosed |
| Yuma Energy | Low Carbon Mobility | September 2026 | Series A | $35M | Operates battery-swapping and Battery-as-a-Service infrastructure for electric two- and three-wheelers. | Asia-Pacific | Magna International |
| Atierra | Low Carbon Mobility | August 2026 | Seed | ≈$275,000 | Develops microalgae biomanufacturing technology for low-carbon oils and feedstocks including sustainable aviation fuel applications. | Asia-Pacific | OIST-Lifetime Ventures Fund |
| Viraj Aero | Low Carbon Mobility | August 2026 | Seed | ≈$2,300,000 | Develops aerodynamic technologies intended to reduce aircraft fuel consumption and associated emissions. | Europe | IRDI Capital Investissement |
| Hayzel | Industrial Climate Tech | August 2026 | Seed | $3.6M | Recovers wasted pressure energy from commercial chiller systems and converts it into electricity to reduce cooling energy consumption. | North America | Not disclosed |
| Quaise Energy | Clean Energy Systems | August 2026 | Series B | ≈$26,000,000 | Develops millimeter-wave drilling technology intended to access deep geothermal heat for firm clean energy. | North America | Not disclosed |
| Certain Energy | Clean Energy Systems | August 2026 | Series A | ≈$23,500,000 | Develops long-duration manganese flow batteries for storing renewable electricity. | Europe | British Business Bank |
| Facetam | Industrial Climate Tech | August 2026 | Seed | ≈$2,100,000 | Develops catalyst technology for producing ammonia directly from air and water with lower energy use and emissions. | Asia-Pacific | Main Sequence |
| Voya Energy | Clean Energy Systems | August 2026 | Series A | $35M | Develops aluminum-based metal-fuel systems that generate firm electricity from low-grade scrap without combustion. | North America | Energy Impact Partners |
| CarbonStrong | Industrial Climate Tech | August 2026 | Seed | ≈$2,400,000 | Produces low-carbon cement substitutes from industrial by-products to reduce concrete's embodied emissions. | Asia-Pacific | IAN Angel Fund |
| Emerald AI | Clean Energy Systems | August 2026 | Series A | $150M | Provides software that makes AI data-center electricity demand dynamically responsive to grid conditions. | North America | Energize Capital; DCVC |
| Matter | Low Carbon Mobility | August 2026 | Growth Equity | $25M | Develops and manufactures electric motorcycles and their integrated battery and drivetrain technology. | Asia-Pacific | Not disclosed |
| Boldr | Building Decarbonization Tech | August 2026 | Unknown | $5M | Connects and controls household HVAC and other energy assets to reduce consumption and provide grid flexibility. | Europe | Unconventional Ventures |
| Kyoto Fusioneering | Clean Energy Systems | August 2026 | Series D+ | ≈$205,000,000 | Develops fusion-reactor engineering technologies, components and integrated plant systems. | Asia-Pacific | Not disclosed |
| Mantel | Industrial Climate Tech | August 2026 | Series A | $18M | Develops high-temperature molten-borate technology to capture CO2 from industrial processes. | North America | Not disclosed |
| Battery Smart | Low Carbon Mobility | August 2026 | Series C | $19.5M | Operates a battery-swapping network for electric two- and three-wheelers. | Asia-Pacific | Rising Tide Ventures |
| Mafix | Carbon Removal Platforms | August 2026 | Seed | $5.4M | Produces silicon fertilisers using mineral conversion that also removes and durably stores atmospheric CO2. | North America | Azolla Ventures |
| Nanolope | Building Decarbonization Tech | August 2026 | Seed | ≈$230,000 | Develops retrofit thermal-storage panels that reduce building heating and cooling loads and shift energy demand. | Europe | Not disclosed |
| Spark Energy | Clean Energy Systems | August 2026 | Seed | ≈$2,300,000 | Supplies modular off-grid solar home systems with batteries, pay-as-you-go software and financing tools for energy access. | Europe | CEI Africa |
| Vessev | Low Carbon Mobility | August 2026 | Series A | $19M | Designs battery-electric hydrofoiling vessels intended to cut energy use and emissions in passenger marine transport. | Asia-Pacific | Blackbird Ventures |
| EcoNomad | Clean Energy Systems | August 2026 | Unknown | ≈$210,000 | Builds compact anaerobic-digestion systems that convert farm waste into renewable biogas and fertiliser. | Europe | British Design Fund |
| Neocrete | Industrial Climate Tech | August 2026 | Unknown | $3.5M | Develops concrete additives that substantially reduce the quantity and associated emissions of Portland cement required in concrete. | Asia-Pacific | Wavemaker Ventures |
| Snerpa Power | Industrial Climate Tech | August 2026 | Seed | ≈$2,500,000 | Provides software that lets power-intensive industries optimize electricity consumption and participate in grid-flexibility markets. | Europe | Encevo |
| Kenoteq | Building Decarbonization Tech | August 2026 | Unknown | ≈$2,200,000 | Manufactures ultra-low-embodied-carbon masonry products from recycled construction and demolition materials. | Europe | Kelvin Capital |
| Form Energy | Clean Energy Systems | August 2026 | Series D+ | $750M | Manufactures iron-air batteries designed to store grid electricity for roughly 100 hours. | North America | T. Rowe Price |
| Reservoir | Building Decarbonization Tech | August 2026 | Seed | $8M | Develops grid-responsive heat-pump water heaters that operate as household thermal batteries. | North America | Asymmetric Capital Partners |
| Yulu | Low Carbon Mobility | August 2026 | Series C | ≈$27,500,000 | Operates shared electric two-wheelers and associated battery-swapping infrastructure for urban mobility. | Asia-Pacific | GEF Capital Partners |
| Naked Energy | Building Decarbonization Tech | August 2026 | Series B | ≈$21,900,000 | Produces solar-thermal collectors that provide low-carbon heat and hot water for commercial buildings. | Europe | Great British Energy |
| Mitti Labs | Climate Adaptation Solutions | August 2026 | Series A | $9.5M | Uses measurement technology and farm interventions to reduce rice methane emissions and improve water resilience. | Asia-Pacific | Aramco Ventures |
| Ore Energy | Clean Energy Systems | August 2026 | Series A | ≈$23,000,000 | Develops iron-air batteries for multi-day electricity storage on power grids. | Europe | Plural; HV Capital |
| Advanced Electric Machines | Low Carbon Mobility | August 2026 | Unknown | ≈$21,500,000 | Develops rare-earth-free electric motors and powertrains for vehicles and other electrified machinery. | Europe | Not disclosed |
| Valar Atomics | Clean Energy Systems | August 2026 | Series B | $1B | Develops modular nuclear reactors intended to deliver scalable clean heat and electricity. | North America | Sequoia Capital |
| Base Power | Clean Energy Systems | August 2026 | Series D+ | $1B | Deploys residential battery systems that provide backup power while supporting electricity-grid capacity and flexibility. | North America | Ribbit Capital; Addition; Valor Equity Partners; JPMorganChase Strategic Investment Group |
| Matel | Industrial Climate Tech | August 2026 | Series B | ≈$23,600,000 | Produces high-efficiency electric motors, controllers and integrated electric powertrains for mobility and industrial applications. | Asia-Pacific | UC Impower |
| Antora Energy | Clean Energy Systems | July 2026 | Series C | $550M | Builds thermal batteries that store electricity as heat and deliver zero-carbon heat and power to industry and data centers. | North America | G2 Venture Partners; Eclipse |
| Commonwealth Fusion Systems | Clean Energy Systems | July 2026 | Growth Equity | $1B | Develops high-field tokamak fusion systems aimed at commercial zero-carbon electricity generation. | North America | Not disclosed |
| Lydian Labs | Low Carbon Mobility | July 2026 | Series A | $43M | Produces synthetic sustainable aviation fuel from captured CO₂ and hydrogen through a modular production platform. | North America | Breakthrough Energy Ventures |
| ATS Energy | Industrial Climate Tech | July 2026 | Unknown | $4.6M | Develops thermophotovoltaic systems that convert high-temperature waste heat into electricity. | North America | Not disclosed |
| Alpen High Performance Products | Building Decarbonization Tech | July 2026 | Series B | $6M | Manufactures high-efficiency windows and glazing systems that reduce building heating and cooling loads. | North America | Inherent Capital; Arborview Capital |
| Antares Industries | Clean Energy Systems | July 2026 | Series C | $370M | Develops factory-built nuclear microreactors for resilient off-grid power at military and other remote sites. | North America | Paradigm; Caffeinated Capital |
| Farm Watt Innovations | Clean Energy Systems | July 2026 | Unknown | ≈$3,520,000 | Builds biomass collection and aggregation infrastructure serving renewable bioenergy production. | Asia-Pacific | IAN Alpha Fund; Rainmatter |
| Bluecore Energy | Clean Energy Systems | July 2026 | Seed | $10M | Develops small modular nuclear reactors mounted on barges to provide transportable clean power. | North America | Slauson & Co. |
| Deutsche Sanierungsberatung | Building Decarbonization Tech | July 2026 | Series A | >≈$11,600,000 | Provides technology-enabled energy-renovation advice and implementation support for climate-neutral residential buildings. | Europe | Simon Capital; VERBUND X Ventures |
| Gritt | Clean Energy Systems | July 2026 | Series A | $26M | Builds robotic systems that automate installation work on utility-scale solar farms. | North America | Obvious Ventures |
| Sila | Clean Energy Systems | July 2026 | Growth Equity | $300M | Manufactures silicon-carbon anode material that increases lithium-ion battery energy density for electric vehicles and other applications. | North America | Atreides Management; Sutter Hill Ventures |
| Sofab Inks | Clean Energy Systems | July 2026 | Seed | $6M | Develops specialty metal-oxide materials that improve reliability and manufacturing of perovskite solar cells. | North America | Cloudberry Ventures |
| Hyperion Robotics | Industrial Climate Tech | July 2026 | Growth Equity | $7.4M | Uses robotic microfactories and low-carbon concrete manufacturing to produce infrastructure components with lower material and CO₂ intensity. | Europe | Course Corrected; European Innovation Council Fund |
| Kind Designs | Climate Adaptation Solutions | July 2026 | Seed | $10M | Manufactures 3D-printed living seawalls designed to protect coastlines while supporting marine ecosystems. | North America | Not disclosed |
| Gridcog | Clean Energy Systems | July 2026 | Series A | $10M | Provides modelling and optimization software for renewable, battery, electrification and hybrid energy projects. | Europe | ABB |
| SLE Energy | Clean Energy Systems | July 2026 | Unknown | $37.4M | Develops tokamak-based fusion technology through the FAST fusion-energy demonstration project. | Asia-Pacific | Global Brain Corporation |
| Hephae Energy Technology | Clean Energy Systems | July 2026 | Series A | $17.8M | Builds high-temperature drilling and measurement systems enabling access to deeper geothermal resources. | North America | Susquehanna Sustainable Investments; Underground Ventures |
| Wildfire Energy | Clean Energy Systems | July 2026 | Seed | ≈$1,300,000 | Develops gasification systems that convert waste and agricultural residues into low-carbon fuels and energy products. | Asia-Pacific | Not disclosed |
| BOHR Energie | Clean Energy Systems | July 2026 | Series A | ≈$11,500,000 | Aggregates and optimizes distributed renewable generation, storage and flexible energy assets for electricity markets. | Europe | Suma Capital |
| Fuchs & Eule | Building Decarbonization Tech | July 2026 | Unknown | ≈$11,500,000 | Provides AI-supported analysis and implementation planning for energy-efficiency retrofits of buildings. | Europe | GET Fund |
| Piq Energy | Clean Energy Systems | July 2026 | Seed | $5M | Provides AI-based grid-interconnection engineering software for renewable-energy, utility and power-project developers. | North America | Active Impact Investments |
| Quaise Energy | Clean Energy Systems | July 2026 | Series B | $134M | Develops millimeter-wave drilling systems and superhot geothermal power plants for firm zero-carbon electricity. | North America | Prelude Ventures |
| Eterna Fusion | Clean Energy Systems | July 2026 | Seed | $1.5M | Develops tokamak-injection technology for compact fusion reactors designed for continuous operation. | Asia-Pacific | Not disclosed |
| Taisan | Clean Energy Systems | July 2026 | Seed | ≈$5,350,000 | Develops solid-state sodium-ion batteries for mobility and energy-storage applications. | Europe | Eos Advisory; Mercia Ventures |
| Albatross Energetics | Industrial Climate Tech | July 2026 | Seed | $1.1M | Develops liquid-desiccant industrial cooling and dehumidification systems designed to reduce energy consumption and emissions. | Asia-Pacific | Transition VC |
| Gaussion | Low Carbon Mobility | June 2026 | Series A | $28M | Develops magnetic-field battery technology that enables substantially faster charging of EV and other battery packs. | Europe | BGF; AlbionVC |
| Kettle | Climate Adaptation Solutions | June 2026 | Series A | $25M | Uses climate science and machine learning to price and underwrite insurance and reinsurance for climate-amplified catastrophe risk. | North America | Not disclosed |
| AquaPoro | Climate Adaptation Solutions | June 2026 | Seed | $5M | Develops porous-material atmospheric water systems that generate freshwater in arid and low-humidity environments. | North America | Breakout Ventures |
| EQON | Industrial Climate Tech | June 2026 | Seed | $6M | Develops control technology that reduces electricity consumption from industrial resistive-heating cable systems. | Europe | Azolla Ventures; Wilstar Innovate |
| Moment Energy | Clean Energy Systems | June 2026 | Series B | $3M | Repurposes retired EV batteries into stationary battery-energy-storage systems. | North America | Not disclosed |
| Wayout | Climate Adaptation Solutions | June 2026 | Series A | ≈$2,820,000 | Builds distributed systems that locally produce and dispense drinking water with minimal transport and packaging. | Europe | Not disclosed |
| VARM | Building Decarbonization Tech | June 2026 | Series A | ≈$20,100,000 | Provides building-insulation installation through a technology platform and trained contractor network. | Europe | ABN AMRO Sustainable Impact Fund; GET Fund |
| Spironet | Low Carbon Mobility | June 2026 | Growth Equity | $55M | Operates electric motorcycles and battery-swapping infrastructure across African markets. | Middle East | Not disclosed |
| SuperLight | Low Carbon Mobility | June 2026 | Series A | $21M | Designs and manufactures purpose-built electric medium-duty trucks for middle-mile freight. | Europe | Engine Ventures; 2150 |
| ION Ventures | Clean Energy Systems | June 2026 | Unknown | ≈$870,000 | Develops and manages battery-storage, grid-flexibility, microgrid and EV-charging infrastructure. | Europe | Not disclosed |
| Kvasir Technologies | Low Carbon Mobility | June 2026 | Series A | ≈$11,500,000 | Produces low-carbon marine fuel from non-food lignocellulosic biomass for existing ship engines. | Europe | Not disclosed |
| Critical Energy | Clean Energy Systems | June 2026 | Seed | $19M | Develops factory-built modular turbines and surface power systems for geothermal power plants. | North America | Susa Ventures; Upfront Ventures |
| Terraxy | Climate Adaptation Solutions | June 2026 | Seed | $3M | Develops soil-regeneration technology for desert greening, water efficiency and carbon capture in arid environments. | Middle East | Wa'ed Ventures |
| Trevel | Low Carbon Mobility | June 2026 | Unknown | $1M | Operates electric-vehicle-based commercial mobility services and fleet infrastructure in India. | Asia-Pacific | India Accelerator; Finvolve; Haldiram Family Office; Rohit Qamra |
| Vaja | Clean Energy Systems | June 2026 | Seed | ≈$3,580,000 | Develops vertical solar-tracking systems designed to increase solar generation at higher latitudes. | Europe | The Footprint Firm |
| Endurance Energy | Clean Energy Systems | June 2026 | Series A | $54M | Develops modular subsea geothermal systems for dispatchable geothermal electricity generation. | North America | Founders Fund |
| ENERA | Low Carbon Mobility | June 2026 | Seed | $2M | Develops electric-vehicle energy and charging infrastructure designed for commercial mobility operations. | Europe | Lakehouse Ventures |
| Reclinker | Industrial Climate Tech | June 2026 | Series A | ≈$8,900,000 | Recycles waste concrete into low-carbon clinker using electric-arc furnaces already used in steelmaking. | Europe | Not disclosed |
| Eclipse | Clean Energy Systems | June 2026 | Series A | ≈$23,000,000 | Develops, optimizes and finances grid-scale battery-storage assets and related energy-market software. | Europe | BNP Paribas; Noria |
| Granarium | Clean Energy Systems | June 2026 | Seed | >$1,150,000 | Develops renewable nanocellulose supercapacitors for grid balancing, renewable integration and industrial power reliability. | Europe | BSV Ventures; Beamline |
| Sintropy | Building Decarbonization Tech | June 2026 | Seed | ≈$1,150,000 | Uses sensors and AI to reduce energy consumption from HVAC and other energy-intensive equipment in commercial facilities. | Europe | Maia Ventures |
| SunUp Fusion | Clean Energy Systems | June 2026 | Series A | $100M | Develops compact high-magnetic-field fusion reactors using a deuterium-helium-3 fuel pathway. | Asia-Pacific | Qiming Venture Partners; CMC Capital; Zhuhai Huajin Capital; ICBC Capital |
| Tap Electric | Low Carbon Mobility | June 2026 | Unknown | ≈$4,600,000 | Provides software and payment infrastructure that helps EV drivers find, use and pay for public charging. | Europe | No Such Ventures |
| Companion Energy | Clean Energy Systems | June 2026 | Seed | ≈$8,970,000 | Provides real-time software for industrial and commercial companies to optimize energy consumption, renewable assets and electricity-market participation. | Europe | Realyze Ventures; Pi Labs |
| Galvany | Building Decarbonization Tech | June 2026 | Seed | ≈$11,500,000 | Provides an integrated platform for installing, operating and optimizing heat pumps in existing buildings. | Europe | SET Ventures; AENU |
| Pollen Energy | Low Carbon Mobility | June 2026 | Seed | ≈$3,680,000 | Operates a universal battery-swapping network for electric mopeds and motorcycles. | Europe | Pale Blue Dot; Mustard Seed Maze |
| Helion Energy | Clean Energy Systems | June 2026 | Series D+ | $465M | Develops pulsed fusion power systems intended to produce commercial zero-carbon electricity. | North America | Thrive Capital |
| InCharge Energy | Low Carbon Mobility | June 2026 | Growth Equity | $46M | Designs, installs and operates commercial EV charging and energy infrastructure for vehicle fleets. | North America | S2G Investments |
| VoltSeal | Clean Energy Systems | June 2026 | Seed | $1.5M | Develops battery-energy-storage systems and associated battery technologies for stationary clean-energy applications. | Asia-Pacific | Theia Ventures |
| Gigaton | Industrial Climate Tech | June 2026 | Series A | $26M | Develops autonomous AI control systems that reduce energy consumption and emissions in cement and other heavy industries. | Europe | Plural |
| SolarDew | Climate Adaptation Solutions | June 2026 | Seed | ≈$920,000 | Develops solar-powered membrane desalination systems for drinking water in remote and water-stressed locations. | Europe | Not disclosed |
| Spironet | Low Carbon Mobility | June 2026 | Growth Equity | $215M | Operates electric motorcycles and battery-swapping infrastructure across African markets. | Middle East | Not disclosed |
| Cellife | Clean Energy Systems | May 2026 | Seed | ≈$4,600,000 | Provides rapid battery diagnostics and health intelligence for battery manufacturers, recyclers and energy-storage operators. | Europe | Not disclosed |
| Volt Harbor | Clean Energy Systems | May 2026 | Seed | $2M | Builds modular software-defined battery energy-storage systems for grids, industrial sites and data centres. | North America | MFV Partners |
| Caudal | Clean Energy Systems | May 2026 | Unknown | ≈$5,800,000 | Develops oscillating-foil tidal generators designed to provide predictable renewable electricity. | Europe | Oxford Science Enterprises; Empirical Ventures |
| Focused Energy | Clean Energy Systems | May 2026 | Series A | $240M | Develops laser-driven inertial fusion systems intended for commercial clean power generation. | Europe | Not disclosed |
| Mykor | Building Decarbonization Tech | May 2026 | Series A | ≈$5,350,000 | Manufactures low-carbon insulation and construction systems from mycelium and industrial or agricultural waste. | Europe | Clean Growth Fund |
| Thea Energy | Clean Energy Systems | May 2026 | Series B | $100M | Develops planar-coil stellarator technology for commercial zero-emission fusion power plants. | North America | US Innovative Technology Fund |
| D-CRBN | Industrial Climate Tech | May 2026 | Series A | ≈$20,500,000 | Uses electrified plasma reactors to convert industrial CO₂ and hydrocarbons into reusable carbon molecules for chemicals and fuels. | Europe | Astaia |
| REPS | Clean Energy Systems | May 2026 | Unknown | $23.6M | Builds road-integrated mechanical systems that harvest vehicle kinetic energy and convert it into electricity. | Europe | Not disclosed |
| Stride | Clean Energy Systems | May 2026 | Series B | $15M | Finances and enables rooftop-solar installations for Vietnamese households and small businesses. | Asia-Pacific | TRIREC; Lightrock |
| CrewCarbon | Carbon Removal Platforms | May 2026 | Series A | $19M | Integrates accelerated mineral weathering into wastewater treatment to permanently remove CO₂ while improving plant performance. | North America | Burnt Island Ventures |
| Elvy | Clean Energy Systems | May 2026 | Seed | $7M | Provides homeowners with subscription-based solar, batteries and associated residential-energy equipment and services. | Europe | Essential Capital; Daft Capital |
| Mantle8 | Clean Energy Systems | May 2026 | Series A | ≈$36,300,000 | Uses subsurface imaging and modelling technology to discover commercially viable natural-hydrogen reservoirs. | Europe | Sandwater |
| VREY | Building Decarbonization Tech | May 2026 | Seed | ≈$3,900,000 | Enables multifamily property owners to install solar and directly supply and bill tenants for locally generated electricity. | Europe | Not disclosed |
| Reel | Clean Energy Systems | May 2026 | Series A | ≈$17,600,000 | Supplies and trades renewable electricity using contracts and risk-management tools that improve renewable-project economics for producers and businesses. | Europe | Future Energy Ventures |
| Enaxiom | Building Decarbonization Tech | May 2026 | Seed | $1.8M | Develops water-efficient cooling infrastructure designed to reduce the resource footprint of data centres. | Asia-Pacific | Epic Angels |
| Moment Energy | Clean Energy Systems | May 2026 | Series B | $40M | Repurposes retired electric-vehicle batteries into stationary battery energy-storage systems. | North America | Evok Innovations |
| Reduciner | Industrial Climate Tech | May 2026 | Unknown | ≈$4,200,000 | Converts captured industrial CO₂ into carbon monoxide, syngas and other feedstocks using electrified high-temperature technology. | Europe | Not disclosed |
| Trillium Renewable Chemicals | Industrial Climate Tech | May 2026 | Series B | $13M | Produces bio-based acrylonitrile and related chemicals to replace fossil-derived chemical feedstocks. | North America | HS Hyosung Advanced Materials |
| Barocal | Building Decarbonization Tech | May 2026 | Seed | $10M | Develops solid-state barocaloric cooling and heating technology that avoids refrigerant gases and lowers energy use. | Europe | Not disclosed |
| Rocsys | Low Carbon Mobility | May 2026 | Series A | $13M | Automated hands-free charging systems for electric heavy-duty fleets, ports and autonomous vehicles. | Europe | Capricorn Partners |
| Amplicity | Clean Energy Systems | May 2026 | Seed | $1M | Software and controls that turn idle industrial and data-centre backup batteries into dispatchable grid and energy-market assets. | Asia-Pacific | Strategic angel investors |
| Living Carbon | Carbon Removal Platforms | April 2026 | Growth Equity | $13M | Develops large-scale reforestation and afforestation projects designed to remove atmospheric CO₂ on degraded land. | North America | Not disclosed |
| Spiral Hydrogen | Clean Energy Systems | April 2026 | Seed | $3.1M | Develops rotating bubble-free electrolysers intended to improve the energy efficiency of green-hydrogen production. | Europe | Not disclosed |
| Prithu | Carbon Removal Platforms | April 2026 | Seed | $1.1M | Develops and verifies nature-based carbon-removal projects with smallholder farmers using field, satellite and digital MRV systems. | Asia-Pacific | Transition VC |
| HAMR Energy | Low Carbon Mobility | April 2026 | Series A | $6.4M | Develops low-carbon methanol and sustainable aviation fuel projects using biomass residues and renewable hydrogen. | Asia-Pacific | Not disclosed |
| TheStorage | Industrial Climate Tech | April 2026 | Seed | $4.2M | Stores renewable electricity as high-temperature heat in moving sand for industrial steam and process-heat applications. | Europe | Voima Ventures |
| VREY | Building Decarbonization Tech | April 2026 | Seed | $3.8M | Provides metering, control and billing infrastructure that enables shared-roof solar electricity supply in multi-family buildings. | Europe | Rubio Impact Ventures |
| Carbonyx | Carbon Removal Platforms | April 2026 | Seed | $1.2M | Converts mineral-rich industrial and mining waste into useful materials while permanently mineralizing CO₂. | North America | WUTIF Capital |
| Exergy3 | Industrial Climate Tech | April 2026 | Seed | $13.3M | Stores renewable electricity as very high-temperature heat for replacing fossil-fuel industrial process heat. | Europe | Axeleo Capital |
| Daphne Technology | Industrial Climate Tech | April 2026 | Growth Equity | $18.7M | Develops exhaust-treatment systems that destroy methane slip from natural-gas engines used in shipping and energy infrastructure. | Europe | Taranis |
| NOC Energy | Industrial Climate Tech | April 2026 | Seed | $2.7M | Electrifies high-temperature industrial heat with induction-based systems designed to replace combustion in manufacturing processes. | North America | 360 Capital |
| Rivan | Industrial Climate Tech | April 2026 | Unknown | $34M | Produces carbon-neutral synthetic natural gas from air, water and renewable electricity for hard-to-electrify industrial processes. | Europe | IQ Capital |
| SPiNE | Clean Energy Systems | April 2026 | Series A | $3.8M | Develops software infrastructure for coordinating distributed energy devices with smart-meter and decentralized-energy systems. | Europe | BayBG |
| NanoTech Materials | Building Decarbonization Tech | April 2026 | Series A | $29.4M | Manufactures ceramic-particle coatings that reduce building heat loads and improve infrastructure resilience to extreme heat and wildfire. | North America | HPI Real Estate & Investments |
| Rebound Technologies | Building Decarbonization Tech | April 2026 | Growth Equity | $2M | Develops thermal energy storage systems that make commercial and industrial cooling loads flexible and reduce peak electricity demand. | North America | KCC Manufacturing |
| Critical Loop | Clean Energy Systems | April 2026 | Series A | $26M | Deploys modular battery-backed microgrids and control software to provide industrial sites with faster, flexible electricity connections. | North America | Conifer Infrastructure Partners; Hanover |
| Plume | Clean Energy Systems | April 2026 | Seed | $3.9M | Uses geospatial AI and regulatory data to accelerate site selection, permitting and grid-connection work for renewable-energy developers. | Europe | AENU |
| Ecoil | Clean Energy Systems | April 2026 | Seed | $2.5M | Collects and aggregates used cooking oil as feedstock for biofuel production through a technology-enabled logistics network. | Asia-Pacific | Fundalogical Ventures |
| Sora Fuel | Low Carbon Mobility | April 2026 | Series A | $14.6M | Converts atmospheric CO₂, water and renewable electricity into syngas for sustainable aviation fuel production. | North America | Spero Ventures; Inspired Capital |
| Cocoon Carbon | Industrial Climate Tech | April 2026 | Series A | $15M | Converts electric-arc-furnace byproducts into low-carbon supplementary cementitious materials that replace conventional cement. | Europe | 2150; Brick & Mortar Ventures |
| Monaire | Building Decarbonization Tech | April 2026 | Unknown | $4M | Uses AI automation to optimize commercial HVAC and refrigeration equipment for lower energy consumption and earlier fault detection. | North America | Founder Collective; Innospark Ventures |
| Entrix | Clean Energy Systems | March 2026 | Unknown | ≈$49,900,000 | Optimizes and trades battery-energy-storage systems across electricity markets using automated software. | Europe | Junction Growth Investors; Korys |
| Volta Greentech | Industrial Climate Tech | March 2026 | Unknown | ≈$1,900,000 | Develops feed additives that reduce methane emissions from cattle digestion. | Europe | Axel Johnson |
| Zevero | Industrial Climate Tech | March 2026 | Unknown | $7M | Provides software for corporate carbon accounting, emissions measurement and decarbonization planning. | Europe | Not disclosed |
| Candela | Low Carbon Mobility | March 2026 | Unknown | ≈$34,800,000 | Designs electric hydrofoil boats and ferries that reduce energy use and emissions in marine transport. | Europe | Not disclosed |
| Cocoon Carbon | Industrial Climate Tech | March 2026 | Series A | $15M | Converts steelmaking slag into low-carbon supplementary cementitious material for concrete production. | Europe | 2150; Brick & Mortar Ventures |
| Homaio | Industrial Climate Tech | March 2026 | Seed | ≈$4,200,000 | Provides a regulated investment platform giving individuals access to carbon allowances and other energy-transition market instruments. | Europe | RAISE Ventures; Groupe Eren |
| Sequestra | Carbon Removal Platforms | March 2026 | Seed | ≈$3,500,000 | Permanently mineralizes CO2 using alkaline industrial residues to create stable carbonate materials. | Europe | VSE Beteiligungs-GmbH |
| AIRMO | Industrial Climate Tech | March 2026 | Seed | ≈$5,800,000 | Develops satellite-based greenhouse-gas monitoring technology for detecting and quantifying industrial methane and CO2 emissions. | Europe | Ananda Impact Ventures |
| GridBeyond | Clean Energy Systems | March 2026 | Series D+ | ≈$13,900,000 | Operates an AI-based platform that optimizes batteries and flexible electricity demand across power markets. | Europe | Samsung Ventures |
| Rubi Laboratories | Industrial Climate Tech | March 2026 | Unknown | $7.5M | Uses captured CO2 as a feedstock to manufacture cellulosic materials for textiles and other products. | North America | AP Ventures; FH One Investments |
| VG12 | Building Decarbonization Tech | March 2026 | Seed | $3M | Develops vacuum-insulated glazing designed to sharply reduce building heating and cooling energy losses. | North America | Grantham Foundation for the Protection of the Environment; Neglected Climate Opportunities |
| Halcyon | Clean Energy Systems | March 2026 | Series A | $21M | Provides AI-powered energy-market data and intelligence for planning and investing in power infrastructure. | North America | Energize Capital |
| ReNew | Clean Energy Systems | March 2026 | Growth Equity | $95M | Develops and supplies renewable-energy solutions for commercial and industrial customers in India. | Asia-Pacific | LeapFrog Investments |
| Delfos Energy | Clean Energy Systems | March 2026 | Seed | ≈$3,500,000 | Provides AI software for monitoring, forecasting and optimizing renewable-energy and battery-storage assets. | Europe | Not disclosed |
| Jimmy Energy | Industrial Climate Tech | March 2026 | Unknown | ≈$46,400,000 | Develops compact nuclear microreactors designed to supply low-carbon industrial process heat. | Europe | Crédit Mutuel Impact |
| NewTrace | Clean Energy Systems | March 2026 | Unknown | $6.3M | Manufactures advanced electrolyzer components designed to lower the cost of green-hydrogen production. | Asia-Pacific | HDFC Bank Limited; Mitsui Sumitomo Insurance Venture Capital |
| Zeno | Low Carbon Mobility | March 2026 | Series A | $20.5M | Builds electric motorcycles and battery-swapping infrastructure for commercial mobility in African markets. | Africa | Congruent Ventures |
| Photoncycle | Clean Energy Systems | March 2026 | Series A | ≈$17,400,000 | Develops seasonal energy-storage systems that store renewable energy as solid hydrogen for later heat and electricity production. | Europe | NordicNinja; Voima Ventures |
| Iron Fuel Technology | Industrial Climate Tech | March 2026 | Series B | ≈$96,400,000 | Develops iron-fuel systems that provide carbon-free high-temperature heat for industrial processes. | Europe | PGGM |
| LiTHiRM | Industrial Climate Tech | March 2026 | Seed | >≈$7,500,000 | Develops electrically heated calcination technology to decarbonize lime and cement production. | Europe | Not disclosed |
| PlasmaLeap | Industrial Climate Tech | March 2026 | Series A | $20M | Develops modular plasma reactors that produce ammonia, nitric acid and fertilizer inputs from air, water and renewable electricity without fossil fuels. | Asia-Pacific | Gates Foundation; Investible; Yara Growth Ventures |
| Grevoro | Industrial Climate Tech | February 2026 | Seed | $4.7M | Manufactures lower-carbon industrial materials and operates technology for traceable embedded-carbon reduction in manufacturing. | Asia-Pacific | Not disclosed |
| RG | Clean Energy Systems | February 2026 | Series B | $20M | Develops geothermal resources and power projects for renewable electricity and heat production. | Europe | Innviðir fjárfestingar II |
| Hycosys | Clean Energy Systems | February 2026 | Seed | $1M | Develops hydrogen-compatible, fuel-flexible micro gas turbines intended to replace diesel-based distributed power generation. | Asia-Pacific | MountTech Growth Fund – Kavachh |
| Intrinsic Foundries | Industrial Climate Tech | February 2026 | Seed | $1.4M | Uses algae-based biorefineries to capture industrial carbon and convert it into commercial biochemicals and materials. | Asia-Pacific | Transition VC |
| NuuEnergy | Building Decarbonization Tech | February 2026 | Seed | $5.1M | Builds and scales digitally enabled regional businesses dedicated to heat-pump installation. | Europe | amberra |
| Zero Homes | Building Decarbonization Tech | February 2026 | Series A | $16.8M | Digitizes the design, quoting and contractor installation of residential heat pumps and other home-electrification upgrades. | North America | Prelude Ventures |
| Inertia | Clean Energy Systems | February 2026 | Series A | $450M | Develops laser-driven inertial-confinement fusion technology intended for commercial grid-scale electricity generation. | North America | Bessemer Venture Partners |
| RefinQ | Climate Adaptation Solutions | February 2026 | Seed | $2.3M | Provides asset-level physical-climate and nature-risk analytics that translate hazards into financial impacts and adaptation actions. | Europe | aws Gründungsfonds; Symbia VC |
| tem. | Clean Energy Systems | February 2026 | Series B | $75M | Operates an AI-native electricity transaction platform connecting businesses directly with renewable power generators. | Europe | Lightspeed Venture Partners |
| Capalo AI | Clean Energy Systems | February 2026 | Series A | $13M | Optimizes and trades grid-scale battery storage and renewable assets through an AI-powered virtual power plant. | Europe | Heartcore Capital |
| Phathom Technologies | Carbon Removal Platforms | February 2026 | Seed | $2.9M | Captures biogenic CO₂ at coastal facilities and converts it into stable dissolved inorganic carbon for durable marine storage. | North America | Propeller Ventures |
| Lunar Energy | Clean Energy Systems | February 2026 | Series D+ | $102M | Builds integrated residential battery systems and virtual-power-plant software that aggregate homes into grid resources. | North America | B Capital; Prelude Ventures |
| Lunar Energy | Clean Energy Systems | February 2026 | Series C | $130M | Builds integrated residential battery systems and virtual-power-plant software that aggregate homes into grid resources. | North America | Activate Capital |
| Varaha | Carbon Removal Platforms | February 2026 | Series B | $45M | Develops and operates carbon-removal projects including biochar, regenerative agriculture, afforestation and enhanced rock weathering. | Asia-Pacific | WestBridge Capital |
| Tetrax | Clean Energy Systems | January 2026 | Seed | ≈$1,400,000 | Provides AI-based technical and investment-risk analysis for renewable-energy infrastructure development and transactions. | Europe | Footprint Firm |
| Co-Reactive | Industrial Climate Tech | January 2026 | Seed | ≈$7,600,000 | Mineralizes captured CO₂ into carbon-negative supplementary cementitious materials for lower-carbon concrete. | Europe | High-Tech Gründerfonds |
| Redwood Materials | Clean Energy Systems | January 2026 | Series D+ | $75M | Recycles lithium-ion batteries, manufactures battery materials and deploys repurposed batteries as stationary energy storage. | North America | Not disclosed |
| Radiant Energy | Industrial Climate Tech | January 2026 | Unknown | ≈$2,340,000 | Develops solar-thermal systems designed to replace fossil fuels in industrial process-heat applications. | Europe | Not disclosed |
| Gigablue | Carbon Removal Platforms | January 2026 | Series A | $20M | Develops ocean-based carbon dioxide removal using controlled microalgae growth and deep-ocean sequestration. | North America | Planet Ocean Capital |
| GlassPoint | Industrial Climate Tech | January 2026 | Unknown | $20M | Builds and operates large-scale solar-thermal systems that replace fossil-fuel heat in industrial processes. | North America | N.I.S. New Investment Solutions |
| Chargeup | Low Carbon Mobility | January 2026 | Unknown | ≈$2,400,000 | Operates a technology and financing platform dedicated to electric last-mile commercial-vehicle drivers and their EV assets. | Asia-Pacific | IAN Group |
| Aerem | Clean Energy Systems | January 2026 | Unknown | $15M | Provides financing, procurement and digital infrastructure for distributed rooftop-solar installers and projects in India. | Asia-Pacific | SMBC Asia Rising Fund |
| Arka Energy | Clean Energy Systems | January 2026 | Seed | $2M | Provides end-to-end residential rooftop-solar systems covering design, installation, approvals, monitoring and maintenance. | Asia-Pacific | Kae Capital |
| Cloover | Clean Energy Systems | January 2026 | Series A | $22M | Provides software, procurement and embedded financing for residential solar, batteries, heat pumps and other distributed-energy installations. | Europe | MMC Ventures; QED Investors |
| EarthSync | Clean Energy Systems | January 2026 | Seed | $1M | Provides AI software for planning, procuring and operating solar, wind and battery-storage projects. | Asia-Pacific | Theia Ventures |
| Enerzolve | Clean Energy Systems | January 2026 | Seed | $5.1M | Develops semiconductor, firmware and power-electronics systems for smart grids, energy storage and modernized power infrastructure. | Asia-Pacific | Jungle Ventures; Kae Capital |
| Karman Industries | Industrial Climate Tech | January 2026 | Series A | $20M | Develops electrically driven thermal-management systems that reduce power consumption and enable heat recovery in data centers and industrial facilities. | North America | Riot Ventures |
| Meine Electric | Clean Energy Systems | January 2026 | Seed | $750K | Develops iron-air long-duration batteries designed to firm renewable generation and provide multi-hour grid storage. | Asia-Pacific | Antler; Rebalance; Venture Catalysts |
| Sage Geosystems | Clean Energy Systems | January 2026 | Series B | >$97,000,000 | Develops pressure-geothermal technology for grid-scale geothermal electricity generation and long-duration energy storage. | North America | Ormat Technologies; Carbon Direct Capital |
| Zanskar | Clean Energy Systems | January 2026 | Series C | $115M | Uses geoscience and AI to discover, characterize and develop geothermal resources and power projects. | North America | Spring Lane Capital |
| Transvolt Mobility | Low Carbon Mobility | January 2026 | Series B | $15M | Deploys and operates electric buses and heavy commercial vehicles for fleet customers in India. | Asia-Pacific | Not disclosed |
| TRLyr | Clean Energy Systems | January 2026 | Unknown | ≈$131,000,000 | Develops and operates grid-scale battery storage while commercializing battery flexibility through a digital marketplace. | Europe | Eurazeo Transition Infrastructure Fund |
| Sunlib | Clean Energy Systems | January 2026 | Seed | ≈$29,200,000 | Provides photovoltaic installations through long-term subscriptions that remove the upfront cost of adopting onsite solar. | Europe | Not disclosed |
| Gradient Geothermal | Clean Energy Systems | January 2026 | Seed | $2.7M | Develops well-completion and flow-control technology to improve output from enhanced geothermal systems. | North America | Grantham Foundation for the Protection of the Environment |
| Jetson | Building Decarbonization Tech | January 2026 | Series A | $50M | Designs, sells and installs integrated electric heat-pump systems for residential home electrification. | North America | Eclipse |
| Startorus Fusion | Clean Energy Systems | January 2026 | Series A | ≈$143,000,000 | Develops magnetic-confinement fusion technology intended to provide commercial zero-carbon power. | Asia-Pacific | Not disclosed |
| EQ Earth | Carbon Removal Platforms | January 2026 | Series A | ≈$14,700,000 | Provides technology-enabled certification and standards for nature-based carbon projects generating verified climate outcomes. | Europe | Not disclosed |
| Lydian Labs | Industrial Climate Tech | January 2026 | Series A | $43.7M | Converts captured CO₂ and renewable electricity into low-carbon synthetic fuels including sustainable aviation fuel. | North America | Breakthrough Energy Ventures |
| Atoba Energy | Low Carbon Mobility | January 2026 | Seed | $1.5M | Aggregates sustainable aviation fuel supply and structures long-term offtake contracts between SAF producers, airlines and fuel distributors. | Europe | Not disclosed |
| Deepal | Low Carbon Mobility | December 2025 | Series C | $874M | Develops and manufactures battery-electric and electrified passenger vehicles. | Asia-Pacific | Not disclosed |
| Fuse Energy | Clean Energy Systems | December 2025 | Series B | $70M | Builds and operates renewable generation, power-supply, grid and home-energy infrastructure. | Europe | Balderton Capital; Lowercarbon Capital |
| Venterra Group | Clean Energy Systems | December 2025 | Growth Equity | ≈$53,500,000 | Provides engineering, survey, construction and installation services exclusively for offshore wind projects. | Europe | Not disclosed |
| Blykalla | Clean Energy Systems | December 2025 | Growth Equity | $50M | Develops lead-cooled small modular nuclear reactors for firm low-carbon power generation. | Europe | Oklo; Norrsken Launcher; Armada Investment |
| Oben Electric | Low Carbon Mobility | December 2025 | Unknown | ≈$9,400,000 | Designs and manufactures electric motorcycles and associated EV technology. | Asia-Pacific | Not disclosed |
| Eltex | Building Decarbonization Tech | December 2025 | Unknown | ≈$2,110,000 | Provides a technology and installer platform for residential solar, heat pumps and EV charging. | Europe | Vireo Ventures; KOPA Ventures |
| Pyxis | Low Carbon Mobility | December 2025 | Growth Equity | ≈$10,000,000 | Builds electric harbor vessels, marine charging infrastructure and fleet energy-management systems. | Asia-Pacific | Shift4Good; Motion Ventures; MOL PLUS; SEEDS |
| Radiant Nuclear | Clean Energy Systems | December 2025 | Series D+ | >$300,000,000 | Develops portable mass-produced nuclear microreactors intended to replace diesel generation. | North America | Draper Associates; Boost VC |
| Skye Energy | Clean Energy Systems | December 2025 | Seed | ≈$11,000,000 | Operates software that automatically shifts industrial electricity demand in response to power prices and grid conditions. | Europe | Transition VC |
| Future Greens | Industrial Climate Tech | December 2025 | Unknown | ≈$455,000 | Builds compact anaerobic-digestion reactors that convert food and brewery waste into renewable heat and power. | Europe | Not disclosed |
| Last Energy | Clean Energy Systems | December 2025 | Series C | $100M | Develops factory-manufactured small modular nuclear power plants for clean firm electricity. | North America | Astera Institute |
| Symbrosia | Industrial Climate Tech | December 2025 | Series A | $5.8M | Produces red-seaweed livestock feed additives designed to reduce enteric methane emissions from cattle. | North America | Not disclosed |
| IND Technology | Climate Adaptation Solutions | December 2025 | Series A | ≈$33,180,000 | Provides early-fault-detection systems that identify grid failures before they cause outages or wildfires. | Asia-Pacific | Angeleno Group; Energy Impact Partners |
| LimeNet | Carbon Removal Platforms | December 2025 | Unknown | ≈$8,200,000 | Uses decarbonized lime and ocean alkalinity enhancement to remove and permanently store atmospheric CO₂. | Europe | Not disclosed |
| Kodiaq | Clean Energy Systems | December 2025 | Unknown | ≈$1,140,000 | Develops organic electrolytes for scalable metal-free long-duration flow batteries. | Europe | Not disclosed |
| Spoor | Clean Energy Systems | December 2025 | Series A | ≈$9,370,000 | Uses computer vision to monitor birds and wildlife so wind farms can be developed and operated with lower ecological impact. | Europe | SET Ventures |
| Fervo Energy | Clean Energy Systems | December 2025 | Series D+ | $462M | Develops enhanced geothermal systems for large-scale, round-the-clock carbon-free electricity generation. | North America | B Capital |
| FION Energy | Clean Energy Systems | December 2025 | Seed | ≈$1,640,000 | Installs and operates AI-optimized battery systems that shift industrial electricity demand and support renewable-heavy grids. | Europe | HTGF; Norrsken Evolve |
| Anaphite | Industrial Climate Tech | December 2025 | Series A | ≈$940,000 | Develops dry-electrode manufacturing technology designed to lower the energy and carbon intensity of lithium-ion battery production. | Europe | Not disclosed |
| Blue Current | Clean Energy Systems | December 2025 | Series D+ | >$80,000,000 | Develops silicon solid-state batteries for stationary storage and electric-mobility applications. | North America | Amazon |
| Haven Energy | Building Decarbonization Tech | December 2025 | Growth Equity | $15M | Deploys and aggregates residential solar-and-battery systems into distributed energy and virtual-power-plant networks. | North America | Giant Ventures |
| Orbital Marine Power | Clean Energy Systems | December 2025 | Growth Equity | ≈$9,340,000 | Develops and operates floating tidal turbines that generate predictable renewable electricity. | Europe | Not disclosed |
| Quilt | Building Decarbonization Tech | December 2025 | Series B | $20M | Designs software-controlled residential heat pumps that replace fossil-fuel heating and cooling systems. | North America | Energy Impact Partners; Galvanize |
| Helical Fusion | Clean Energy Systems | December 2025 | Series A | $5.5M | Develops commercial fusion reactors using helical stellarator magnetic-confinement technology. | Asia-Pacific | Not disclosed |
| Addis Energy | Industrial Climate Tech | December 2025 | Seed | $8.3M | Develops subsurface chemical processes to produce ammonia with substantially lower energy requirements than conventional Haber-Bosch production. | North America | At One Ventures |
| Spark Cleantech | Industrial Climate Tech | December 2025 | Series A | ≈$19,900,000 | Produces low-carbon hydrogen and solid carbon from methane for decarbonizing industrial process heat. | Europe | 360 Capital; Taranis |
| ZincFive | Clean Energy Systems | December 2025 | Series D+ | $30M | Manufactures nickel-zinc battery systems for high-power stationary and data-center applications. | North America | Not disclosed |
| Carba | Carbon Removal Platforms | December 2025 | Unknown | $6M | Converts waste biomass into stable biocarbon for durable carbon removal and low-carbon industrial materials. | North America | Rusheen Capital Management; Canopy Generations Fund |
| Hachiko | Clean Energy Systems | December 2025 | Seed | $2.5M | Develops software to optimize the operation and economics of industrial battery energy-storage systems. | Asia-Pacific | Archangel Ventures |
| Mater AI | Industrial Climate Tech | December 2025 | Seed | ≈$2,010,000 | Uses AI to discover thermoelectric materials that turn industrial waste heat into electricity. | Europe | Twin Path Ventures |
| Antares Industries | Clean Energy Systems | December 2025 | Series B | $71M | Develops compact nuclear microreactors for terrestrial, maritime and space power applications. | North America | Shine Capital |
| BattBelt | Clean Energy Systems | December 2025 | Unknown | ≈$735,000 | Develops mechanical management technology that extends lithium-ion battery life and performance. | Europe | BeAble Capital |
| Modo Energy | Clean Energy Systems | December 2025 | Series B | $30M | Provides benchmarking, forecasting and valuation software for battery storage and electrification assets. | Europe | Molten Ventures |
| BatteryPool | Low Carbon Mobility | November 2025 | Unknown | ≈$900,000 | Operates pay-as-you-go battery access and swapping infrastructure for electric two- and three-wheelers. | Asia-Pacific | Inflection Point Ventures |
| Neuron Energy | Low Carbon Mobility | November 2025 | Unknown | ≈$3,490,000 | Manufactures lithium-ion battery packs and chargers primarily for electric two-wheelers, three-wheelers and light commercial vehicles. | Asia-Pacific | Equanimity Ventures; Rajiv Dadlani Group; Thackersay Family Office |
| EcoG | Low Carbon Mobility | November 2025 | Series B | ≈$18,600,000 | Develops operating-system and controller technology for interoperable EV fast-charging infrastructure. | Europe | GET Fund; Extantia; Bayern Kapital |
| Enerin | Industrial Climate Tech | November 2025 | Series A | ≈$17,400,000 | Develops high-temperature industrial heat pumps that electrify process heat using recovered heat and electricity. | Europe | Climentum Capital; The Footprint Firm; Johnson Controls; Move Energy |
| Enerzi | Industrial Climate Tech | November 2025 | Seed | ≈$1,850,000 | Uses microwave-plasma methane pyrolysis to produce low-carbon hydrogen and solid carbon materials. | Asia-Pacific | Capital A |
| 3ev Industries | Low Carbon Mobility | November 2025 | Series A | ≈$13,500,000 | Manufactures electric commercial three-wheelers and electric conversion systems for last-mile transport. | Asia-Pacific | Mahanagar Gas Limited |
| Installio | Building Decarbonization Tech | November 2025 | Seed | ≈$2,000,000 | Provides technology-enabled heat-pump and clean-heating installation services. | Europe | Verb Ventures |
| Overstory | Climate Adaptation Solutions | November 2025 | Series B | $43M | Uses satellite imagery and AI to help utilities manage vegetation and reduce wildfire and grid-failure risk. | Europe | Blume Equity |
| PowerUP Energy Technologies | Clean Energy Systems | November 2025 | Series A | ≈$11,600,000 | Manufactures hydrogen fuel-cell generators for low-emission off-grid and critical-power applications. | Europe | Mercaton; ScaleWolf |
| STRATAPHY | Building Decarbonization Tech | November 2025 | Seed | $6M | Develops geothermal and subsurface cooling systems for data centers and industrial facilities in hot climates. | Middle East | Outliers VC |
| Maritime Fusion | Clean Energy Systems | November 2025 | Seed | $4.5M | Develops compact fusion reactors intended for zero-carbon ship propulsion and off-grid power. | North America | Trucks Venture Capital |
| Unergy | Clean Energy Systems | November 2025 | Unknown | $4M | Develops and finances distributed solar and solar mini-grid projects in Latin America. | Latin America | Not disclosed |
| X-energy | Clean Energy Systems | November 2025 | Series D+ | $700M | Develops high-temperature gas-cooled small modular reactors and TRISO nuclear fuel. | North America | Jane Street |
| Nexdash | Low Carbon Mobility | November 2025 | Seed | ≈$5,800,000 | Acquires and operates road-freight fleets and converts them to zero-emission electric trucks. | Europe | Extantia Capital |
| Delta Charge | Low Carbon Mobility | November 2025 | Unknown | $4.3M | Develops charging depots, battery storage and energy-management systems for electric trucks and logistics fleets. | Europe | Vireo Ventures; Rethink Ventures |
| EQORE | Clean Energy Systems | November 2025 | Seed | $1.7M | Deploys AI-controlled distributed battery storage for commercial and industrial electricity users. | North America | Not disclosed |
| Finapp | Climate Adaptation Solutions | November 2025 | Series A | ≈$10,000,000 | Uses cosmic-ray neutron sensing to monitor soil, snow and water conditions for drought, flood and water-resource management. | Europe | Linfa - Riello Investimenti SGR |
| Mangrove Lithium | Industrial Climate Tech | November 2025 | Unknown | ≈$1,070,000 | Develops electrochemical lithium-refining technology designed to produce battery-grade lithium with lower energy and chemical intensity. | North America | Not disclosed |
| Sortera Technologies | Industrial Climate Tech | November 2025 | Growth Equity | $45M | Uses AI and sensor-based sorting to convert mixed aluminum scrap into high-value recycled aluminum feedstock. | North America | T. Rowe Price Associates-advised accounts; VXI Capital |
| Flux Marine | Low Carbon Mobility | November 2025 | Unknown | $15M | Develops electric outboard propulsion systems and modular batteries for marine vessels. | North America | Not disclosed |
| Overlab | Industrial Climate Tech | November 2025 | Seed | ≈$520,000 | Provides AI and IoT systems that reduce industrial energy use, resource consumption and emissions. | Europe | Zero |
| Rhizocore Technologies | Climate Adaptation Solutions | November 2025 | Seed | $5.5M | Produces fungal inoculants that improve tree establishment, growth and resilience in forestry and ecosystem restoration. | Europe | The First Thirty |
| PIONIX | Low Carbon Mobility | November 2025 | Seed | >≈$9,300,000 | Develops an open-source-based operating system and controller stack for EV charging equipment. | Europe | Ascend Capital Partners; Scania Growth Capital |
| Gridware | Climate Adaptation Solutions | November 2025 | Series B | $55M | Uses pole-mounted sensors and AI to detect grid faults, hazards and wildfire risks in real time. | North America | Tiger Global; Generation Investment Management |
| Holosolis | Clean Energy Systems | November 2025 | Growth Equity | >≈$15,100,000 | Develops a European gigafactory for photovoltaic cells and solar modules. | Europe | Not disclosed |
| MetroElectro | Clean Energy Systems | November 2025 | Unknown | ≈$650,000 | Provides commercial solar and batteries through a solar-as-a-service model. | Asia-Pacific | Not disclosed |
| Nanoramic | Industrial Climate Tech | November 2025 | Unknown | $54M | Develops advanced electrode materials and manufacturing technology for higher-performance batteries. | North America | GM Ventures; Catalus Capital |
| Glint Solar | Clean Energy Systems | November 2025 | Series A | $8M | Provides software for identifying, assessing and designing utility-scale solar project sites. | Europe | Smedvig Ventures |
| EnerKite | Clean Energy Systems | November 2025 | Unknown | ≈$1,860,000 | Develops airborne wind-energy systems that generate electricity using tethered autonomous kites. | Europe | Not disclosed |
| Harbinger Motors | Low Carbon Mobility | November 2025 | Series C | $160M | Manufactures electric and hybrid-electric chassis for medium-duty commercial vehicles. | North America | FedEx; Capricorn Technology Impact Fund; THOR Industries |
| LIFEPOWR | Clean Energy Systems | November 2025 | Series A | ≈$6,550,000 | Operates software that aggregates and optimizes batteries, solar, EV chargers and heat pumps for electricity flexibility. | Europe | Noshaq; SPDG |
| Mulilo | Clean Energy Systems | November 2025 | Growth Equity | $75M | Develops, owns and operates utility-scale wind, solar and battery-storage projects. | Africa | Not disclosed |
| Exowatt | Clean Energy Systems | November 2025 | Series A | $50M | Develops modular solar generation combined with thermal energy storage for dispatchable clean power. | North America | MVP Ventures; 8090 Industries |
| Number 8 Bio | Industrial Climate Tech | November 2025 | Series A | ≈$7,150,000 | Develops livestock feed and rumen technologies that reduce enteric methane emissions. | Asia-Pacific | Icehouse Ventures |
| Power & Heat | Clean Energy Systems | November 2025 | Seed | ≈$1,830,000 | Builds portable hydrogen fuel-cell power systems designed to replace diesel generators. | Europe | Companisto Business Angel Network |
| Voya Energy | Clean Energy Systems | November 2025 | Seed | $13M | Develops recyclable metal-fuel systems for carbon-free portable and off-grid power. | North America | Energy Impact Partners |
| Waaree Technologies | Clean Energy Systems | November 2025 | Growth Equity | ≈$36,600,000 | Manufactures battery cells, packs and containerized battery energy-storage systems. | Asia-Pacific | Niveshaay |
| Highview Power | Clean Energy Systems | November 2025 | Growth Equity | ≈$170,300,000 | Develops long-duration grid storage using liquid-air energy storage integrated with batteries. | Europe | Not disclosed |
| Infinity | Clean Energy Systems | November 2025 | Growth Equity | $40M | Develops and operates renewable-energy projects across Africa through its clean-energy businesses. | Africa | Not disclosed |
| Quino Energy | Clean Energy Systems | November 2025 | Series A | $10M | Develops water-based organic flow batteries for long-duration stationary energy storage. | North America | Atri Energy Transition |
| Sedgeley Solar Group | Clean Energy Systems | November 2025 | Growth Equity | $60M | Develops and operates commercial and industrial distributed solar and battery projects in Southern Africa. | Africa | Inspired Evolution |
| Swish Solar | Clean Energy Systems | November 2025 | Seed | $1.5M | Develops self-cleaning coatings and analytics that reduce soiling losses from solar panels. | North America | Friday Ventures |
| Valar Atomics | Clean Energy Systems | November 2025 | Series A | $105M | Develops helium-cooled high-temperature nuclear reactors for electricity and industrial energy. | North America | Snowpoint Ventures |
| TerraNova | Climate Adaptation Solutions | November 2025 | Seed | $7M | Uses autonomous equipment to inject biomass underground and raise flood-prone land elevations. | North America | Congruent Ventures; Outlander |
| Blykalla | Clean Energy Systems | November 2025 | Growth Equity | ≈$40,300,000 | Develops lead-cooled small modular nuclear reactors for low-carbon electricity and industrial heat. | Europe | Not disclosed |
| Cambridge Photon Technology | Clean Energy Systems | November 2025 | Unknown | ≈$1,210,000 | Develops photon-multiplier materials designed to increase electricity output from silicon solar cells. | Europe | Not disclosed |
| Renset | Clean Energy Systems | November 2025 | Seed | ≈$700,000 | Provides portable swappable battery systems that replace diesel generators on construction sites. | Europe | Vliegwiel Impact |
| Solfium | Clean Energy Systems | November 2025 | Series A | $7M | Provides distributed solar systems and energy services to businesses in Mexico. | Latin America | Accion; ALIVE Ventures |
| C.Scale | Building Decarbonization Tech | November 2025 | Seed | $2M | Provides building-carbon software connecting whole-life carbon analysis with low-carbon construction-material selection and procurement. | North America | Active Impact Investments; Wireframe Ventures |
| Flux XII | Clean Energy Systems | November 2025 | Seed | $4M | Develops organic electrolyte chemistry for long-duration redox-flow batteries. | North America | Grantham Foundation |
| Hullbot | Low Carbon Mobility | November 2025 | Series A | $10.6M | Builds autonomous hull-cleaning robots that reduce ship drag, fuel consumption and emissions. | Asia-Pacific | Regeneration.VC |
| Infravision | Clean Energy Systems | November 2025 | Series B | $91M | Uses aerial robotics to construct and upgrade electricity transmission infrastructure. | North America | GIC |
| Maxwell+Spark | Low Carbon Mobility | October 2025 | Series B | $15M | Builds lithium-ion battery systems that replace diesel and lead-acid power in industrial logistics and refrigerated transport. | Europe | Klima |
| Mondra | Industrial Climate Tech | October 2025 | Series A | ≈$13,400,000 | Provides product-level emissions and supply-chain intelligence to help food companies measure and reduce environmental impacts. | Europe | AlbionVC; Planet A Ventures |
| Redwood Materials | Clean Energy Systems | October 2025 | Series D+ | $350M | Recycles lithium-ion batteries and produces battery materials and stationary storage systems from recovered battery resources. | North America | Eclipse |
| Immaterial | Industrial Climate Tech | October 2025 | Series A | $18.2M | Develops porous-material systems primarily for lower-cost point-source carbon capture in hard-to-abate industries. | Europe | SLB |
| Arbor | Clean Energy Systems | October 2025 | Series A | $55M | Develops fuel-flexible power systems designed to deliver low-emission baseload electricity with integrated CO₂ capture. | North America | Lowercarbon Capital; Voyager Ventures |
| etalytics | Industrial Climate Tech | October 2025 | Series A | ≈$9,280,000 | Uses AI and digital twins to reduce energy consumption in data centers and energy-intensive industrial facilities. | Europe | M12 |
| Pila Energy | Clean Energy Systems | October 2025 | Seed | $4M | Makes plug-in distributed home batteries for backup power, energy management and grid support. | North America | R7 Partners |
| Seneca | Climate Adaptation Solutions | October 2025 | Seed | $60M | Develops autonomous aerial systems that detect and suppress wildfires before they spread. | North America | Caffeinated Capital; Convective Capital |
| bees & bears | Clean Energy Systems | October 2025 | Seed | ≈$5,800,000 | Provides embedded financing that helps households purchase solar systems, batteries and heat pumps. | Europe | Extantia Capital; Contrarian Ventures |
| Wild Bioscience | Climate Adaptation Solutions | October 2025 | Series A | $60M | Uses AI and precision breeding to develop higher-yielding, climate-resilient crop varieties. | Europe | Ellison Institute of Technology |
| 011h | Building Decarbonization Tech | October 2025 | Series A | ≈$23,200,000 | Designs and delivers industrialized low-carbon buildings using digital processes and lower-emissions construction materials. | Europe | Ship2B Ventures; CDTI |
| Corvus Energy | Low Carbon Mobility | October 2025 | Growth Equity | $60M | Manufactures battery energy-storage systems for hybrid and zero-emission maritime vessels. | Europe | Morgan Stanley Investment Management 1GT |
| Base Power | Clean Energy Systems | October 2025 | Series C | $1B | Deploys residential batteries as a distributed power network providing backup power and grid capacity. | North America | Addition |
| BioSorra | Carbon Removal Platforms | October 2025 | Seed | $3.5M | Converts tropical agricultural residues into biochar for durable carbon removal and soil improvement. | Africa | atmosfair; Fondo Nimbus |
| Clevergy | Clean Energy Systems | October 2025 | Seed | ≈$3,710,000 | Provides software enabling electricity retailers and households to manage consumption, distributed energy assets and flexibility. | Europe | Racine²; Axon Partners Group |
| Vycarb | Carbon Removal Platforms | October 2025 | Seed | $5M | Builds modular water-based systems that capture CO₂ and convert it into durable dissolved ocean carbon storage. | North America | Twynam Investments |
| Hysun | Industrial Climate Tech | October 2025 | Seed | ≈$3,480,000 | Develops solar-driven technology that produces renewable hydrogen without conventional electrolysis electricity demand. | Europe | Not disclosed |
| Einride | Low Carbon Mobility | October 2025 | Growth Equity | $100M | Operates electric and autonomous freight vehicles with software for zero-emission road logistics. | Europe | Not disclosed |
| FenX | Building Decarbonization Tech | October 2025 | Series A | ≈$10,250,000 | Develops low-energy mineral-foam insulation that replaces more emissions-intensive conventional building insulation. | Europe | Supernova Invest; Move Energy |
| Optimuse | Building Decarbonization Tech | October 2025 | Seed | ≈$4,640,000 | Uses AI building simulation to optimize HVAC, envelopes and renovation choices for lower energy use and emissions. | Europe | seed + speed Ventures; Blum Ventures |
| Phaidra | Industrial Climate Tech | October 2025 | Series B | >$50,000,000 | Builds AI control agents that reduce energy and cooling requirements in data centers and other industrial facilities. | North America | Collaborative Fund |
| viboo | Building Decarbonization Tech | October 2025 | Seed | ≈$3,830,000 | Provides AI-based building controls that reduce heating and other building energy consumption. | Europe | Realyze Ventures |
| Boldr | Building Decarbonization Tech | September 2025 | Seed | $3.2M | Builds connected home heating, cooling and energy-control systems that turn residences into flexible grid assets. | Europe | Not disclosed |
| Anode | Clean Energy Systems | September 2025 | Seed | $9M | Provides mobile battery microgrids as a zero-emission alternative to temporary diesel generators. | North America | Eclipse |
| OXCCU | Industrial Climate Tech | September 2025 | Series B | $28M | Develops catalysts and reactors that convert waste carbon directly into sustainable aviation fuel and chemicals. | Europe | Not disclosed |
| Plantd | Building Decarbonization Tech | September 2025 | Series B | $22M | Manufactures carbon-negative structural building materials from fast-growing perennial grass. | North America | Not disclosed |
| viboo | Building Decarbonization Tech | September 2025 | Seed | ≈$3,900,000 | Provides predictive building-control software that cuts heating and cooling energy consumption in existing buildings. | Europe | Realyze Ventures |
| Enadyne | Industrial Climate Tech | September 2025 | Seed | ≈$8,200,000 | Develops electrically powered plasma-catalysis reactors that convert greenhouse gases into chemicals and abate industrial emissions. | Europe | Amadeus APEX Technology Fund; Energy Capital Ventures |
| WAAT | Low Carbon Mobility | September 2025 | Growth Equity | ≈$117,000,000 | Deploys and operates EV charging infrastructure for residential, social-housing and commercial properties. | Europe | DWS; Bpifrance |
| Wankel Energy | Industrial Climate Tech | September 2025 | Seed | $1M | Develops rotary expanders that recover wasted industrial steam pressure and convert it into electricity. | Asia-Pacific | Shastra VC |
| Xbattery | Clean Energy Systems | September 2025 | Seed | $2.3M | Develops battery-management electronics for electric vehicles and stationary energy-storage systems. | Asia-Pacific | Bipin Patel Family Office |
| Brineworks | Carbon Removal Platforms | September 2025 | Seed | ≈$5,900,000 | Develops direct-air-capture electrolysers that co-produce captured CO₂ and hydrogen for e-fuels. | Europe | SeaX Ventures |
| Equilibrium | Carbon Removal Platforms | September 2025 | Seed | $3M | Develops and manages carbon-removal projects spanning agroforestry, regenerative agriculture, mangroves and biochar. | Asia-Pacific | Not disclosed |
| Factor2 Energy | Clean Energy Systems | September 2025 | Seed | $9.1M | Develops geothermal power systems that use CO₂ rather than water as the underground working fluid. | Europe | At One Ventures |
| DACLab | Carbon Removal Platforms | September 2025 | Seed | $3M | Develops modular low-energy direct-air-capture systems for CO₂ sequestration and e-fuel production. | North America | Peter Relan |
| EV Realty | Low Carbon Mobility | September 2025 | Growth Equity | $75M | Develops and operates high-capacity charging hubs for commercial electric truck fleets. | North America | NGP |
| XL Batteries | Clean Energy Systems | September 2025 | Seed | $7.5M | Develops organic, non-flammable flow batteries for long-duration grid energy storage. | North America | Not disclosed |
| suena | Clean Energy Systems | September 2025 | Series A | ≈$9,400,000 | Provides automated optimisation and electricity-market trading software for batteries and renewable-energy assets. | Europe | Eneco Ventures |
| Chestnut Carbon | Carbon Removal Platforms | September 2025 | Series B | $90M | Develops large-scale afforestation projects that generate durable nature-based carbon removal credits. | North America | Not disclosed |
| Fourth Power | Clean Energy Systems | September 2025 | Series A | $20M | Develops high-temperature thermal energy storage for long-duration grid electricity storage. | North America | Munich Re Ventures |
| Rodatherm Energy | Clean Energy Systems | September 2025 | Series A | $38M | Develops closed-loop geothermal systems for utility-scale electricity generation. | North America | Evok Innovations |
| Sympower | Clean Energy Systems | September 2025 | Series B | ≈$22,300,000 | Operates a flexibility platform that optimises distributed energy assets and battery storage for electricity grids. | Europe | PGGM |
| encentive | Industrial Climate Tech | September 2025 | Seed | ≈$7,400,000 | Uses AI to control industrial energy assets and reduce electricity costs and emissions through flexible operation. | Europe | General Catalyst |
| Feld Energy | Clean Energy Systems | September 2025 | Seed | ≈$11,700,000 | Develops and deploys agrivoltaic projects that combine agricultural production with solar generation. | Europe | HV Capital |
| FEX Energy | Clean Energy Systems | September 2025 | Seed | $3.5M | Develops iron-based long-duration energy storage for replacing fossil-fuel energy in remote and industrial applications. | North America | Fathom Fund; Amplify Capital; Antares Ventures |
| Nitricity | Industrial Climate Tech | September 2025 | Series B | $50M | Produces lower-emission nitrogen fertilizer using renewable energy, air, water and biomass inputs. | North America | World Fund; Khosla Ventures |
| Dig Energy | Building Decarbonization Tech | September 2025 | Seed | $5M | Develops compact drilling systems that lower the cost of geothermal heating and cooling installations. | North America | Azolla Ventures; Avila VC |
| Enersee | Building Decarbonization Tech | September 2025 | Seed | ≈$4,700,000 | Provides AI-based energy-management software that identifies and reduces energy waste across building portfolios. | Europe | Degrees Capital |
| Solenergy | Clean Energy Systems | September 2025 | Seed | ≈$540,000 | Provides an AI platform for evaluating and adopting solar and net-zero energy solutions. | North America | Not disclosed |
| Rock Flour Company | Carbon Removal Platforms | September 2025 | Seed | ≈$7,150,000 | Commercialises Greenlandic rock flour for enhanced-weathering carbon removal and lower-carbon agriculture. | Europe | EIFO; Novo Holdings |
| Florrent | Clean Energy Systems | September 2025 | Seed | $9.5M | Develops plant-derived supercapacitor materials and systems for grid power quality and renewable-energy reliability. | North America | MassVentures |
| Zympler | Clean Energy Systems | September 2025 | Seed | ≈$1,760,000 | Provides software that optimises solar, batteries, EV charging and other energy assets behind constrained grid connections. | Europe | Arches Capital |
| Euclid Power | Clean Energy Systems | September 2025 | Series A | $20M | Provides software and services that streamline development and operation of renewable-energy projects. | North America | Venrock |
| Maxwell+Spark | Low Carbon Mobility | September 2025 | Series B | ≈$10,500,000 | Builds lithium-ion battery systems that replace diesel power in industrial logistics and transport refrigeration. | Europe | Klima |
| Puro.earth | Carbon Removal Platforms | September 2025 | Series B | ≈$12,900,000 | Operates a carbon-crediting and certification platform focused on engineered carbon dioxide removal. | Europe | Nasdaq |
| Quanta Renewables | Clean Energy Systems | September 2025 | Seed | $500K | Provides distributed solar, energy-management and clean-energy solutions for residential communities. | Asia-Pacific | Trillion Dollar Venture Partners |
| TOBE Energy | Industrial Climate Tech | September 2025 | Seed | $1.8M | Develops high-efficiency electrolysers for low-cost green hydrogen production. | North America | Cortado Ventures |
| Offgrid Energy Labs | Clean Energy Systems | September 2025 | Series A | $15M | Develops zinc-bromine ZincGel batteries for stationary and long-duration energy storage. | Asia-Pacific | Archean Chemical Industries |
| Terraton | Carbon Removal Platforms | September 2025 | Seed | $11.5M | Provides a full-stack platform for deploying and operating biochar carbon-removal facilities. | North America | Lowercarbon Capital; Gigascale Capital |
| Deftpower | Low Carbon Mobility | August 2025 | Unknown | ≈$14,600,000 | Provides AI-based EV charging and smart-charging software that integrates vehicle flexibility with electricity grids. | Europe | Endeit Capital |
| Palmer Energy Technology | Clean Energy Systems | August 2025 | Series A | ≈$6,750,000 | Develops automotive-grade battery energy-storage systems and battery-management technology. | Europe | FirstGroup plc; Barclays Bank; University of Oxford |
| Commonwealth Fusion Systems | Clean Energy Systems | August 2025 | Series B | $863M | Develops high-field-magnet fusion systems and commercial fusion power plants. | North America | Not disclosed |
| RABLE | Clean Energy Systems | August 2025 | Unknown | ≈$2,910,000 | Manufactures self-supporting mounting systems that enable solar panels on roofs unable to bear conventional installations. | Europe | Not disclosed |
| Yottar | Clean Energy Systems | August 2025 | Seed | $1M | Maps electricity-grid capacity so electrification projects can identify sites where new electrical loads can connect. | Europe | Haatch |
| Fifty | Clean Energy Systems | August 2025 | Unknown | ≈$1,630,000 | Provides AI-based software for optimizing distributed energy assets and electricity-system flexibility. | Europe | Not disclosed |
| Group14 Technologies | Clean Energy Systems | August 2025 | Series D+ | $463M | Manufactures silicon-carbon active materials that improve rechargeable battery performance and energy density. | North America | SK, Inc. |
| Aalo Atomics | Clean Energy Systems | August 2025 | Series B | $100M | Develops factory-manufactured modular nuclear power plants for reliable carbon-free electricity. | North America | Valor Equity Partners |
| Nrlyze | Building Decarbonization Tech | August 2025 | Seed | ≈$1,050,000 | Uses AI, sensors and control software to reduce wasted heating energy in buildings. | Europe | VEQ; Aipa Invesco AB |
| Wallround | Building Decarbonization Tech | August 2025 | Seed | ≈$4,900,000 | Runs a technology-enabled end-to-end platform for energy-efficient building renovations. | Europe | Revent; Green Generation Fund |
| HEVO | Low Carbon Mobility | August 2025 | Unknown | $579.1K | Develops wireless charging hardware and software for electric vehicles. | North America | Not disclosed |
| Hubber Infrastructure | Low Carbon Mobility | August 2025 | Unknown | ≈$81,000,000 | Develops high-powered urban EV charging hubs for fleets and other high-utilization electric vehicles. | Europe | James Bayliss; Christopher Fox |
| Rebelvolt | Clean Energy Systems | August 2025 | Unknown | ≈$730,000 | Builds mobile industrial battery generators designed to replace diesel generators in off-grid applications. | Europe | Gorilla Capital Fund |
| Aira | Building Decarbonization Tech | August 2025 | Growth Equity | ≈$174,700,000 | Manufactures and installs residential heat pumps and associated clean home-energy systems designed to replace gas heating. | Europe | Not disclosed |
| Equatic | Carbon Removal Platforms | August 2025 | Series A | $11.6M | Uses seawater electrolysis to permanently remove atmospheric CO₂ while co-producing green hydrogen. | North America | Catalytic Capital for Climate and Health; Kibo Invest |
| SolarSteam | Industrial Climate Tech | August 2025 | Seed | $717K | Builds concentrating-solar thermal systems that replace fossil-fuel heat in industrial processes. | North America | Not disclosed |
| Bisly | Building Decarbonization Tech | August 2025 | Series A | ≈$5,000,000 | Supplies building-automation hardware and software that optimizes heating, ventilation, lighting and energy use. | Europe | 2C Ventures |
| Hylenr | Clean Energy Systems | August 2025 | Unknown | $3M | Develops low-energy nuclear-reaction systems intended to supply carbon-free industrial heat and power. | Asia-Pacific | Valour Capital; Chhattisgarh Investments Limited |
| Wattch | Clean Energy Systems | August 2025 | Seed | $6M | Provides monitoring, control and hybrid-SCADA hardware/software for commercial solar and battery-storage assets. | North America | Spero Ventures |
| AMP Clean Energy | Clean Energy Systems | August 2025 | Growth Equity | ≈$67,000,000 | Develops distributed energy, battery-storage and low-carbon industrial heat infrastructure. | Europe | Not disclosed |
| Circon Energy | Industrial Climate Tech | August 2025 | Unknown | $4M | Converts waste streams into renewable electricity, lower-carbon fuels and other recovered resources. | North America | Not disclosed |
| RenewCO2 | Industrial Climate Tech | August 2025 | Seed | $4M | Converts captured CO₂ and water electrochemically into low-carbon chemicals and fuel precursors. | North America | Energy Transition Ventures |
| Solidec | Industrial Climate Tech | July 2025 | Seed | >$2,000,000 | Develops modular electrochemical reactors that make industrial chemicals from air, water and electricity instead of conventional fossil-intensive processes. | North America | New Climate Ventures |
| Planted Solar | Clean Energy Systems | July 2025 | Series A | $12M | Develops terrain-following solar-array technology and construction systems designed to reduce land, steel and installation requirements. | North America | Piva Capital |
| eveez | Low Carbon Mobility | July 2025 | Series A | $5.4M | Provides subscription electric two-wheelers to gig-economy and delivery workers as an electric-mobility-as-a-service platform. | Asia-Pacific | Michael & Susan Dell Foundation |
| Hertha Metals | Industrial Climate Tech | July 2025 | Series A | $17M | Develops a lower-energy, lower-emissions single-step process for producing steel and high-purity iron from ore. | North America | Not disclosed |
| Sunsave | Building Decarbonization Tech | July 2025 | Series A | ≈$17,500,000 | Provides residential rooftop solar and battery systems through a subscription model with no upfront purchase requirement. | Europe | Norrsken VC; IPGL |
| Elephant Energy | Building Decarbonization Tech | July 2025 | Series A | $6.5M | Designs and installs residential electrification systems including heat pumps, heat-pump water heaters and induction appliances. | North America | Not disclosed |
| Stellaria | Clean Energy Systems | July 2025 | Unknown | ≈$26,900,000 | Develops a fast-neutron molten-salt nuclear reactor for low-carbon electricity and industrial energy production. | Europe | At One Ventures; Supernova Invest |
| Alva Energie | Building Decarbonization Tech | July 2025 | Seed | ≈$6,100,000 | Plans, installs and operates distributed solar and tenant-electricity systems for residential and commercial buildings. | Europe | Not disclosed |
| Enerkii | Clean Energy Systems | July 2025 | Seed | Not Disclosed | Provides commercial and industrial customers with on-site renewable-energy systems combining solar, storage and energy-management software. | Europe | World Fund |
| GRIDSERVE | Low Carbon Mobility | July 2025 | Growth Equity | ≈$134,000,000 | Develops and operates high-power electric-vehicle charging infrastructure across the United Kingdom. | Europe | Not disclosed |
| Cariqa | Low Carbon Mobility | July 2025 | Seed | ≈$4,700,000 | Provides payments, billing and dynamic-pricing infrastructure built specifically for public EV charging networks. | Europe | Anthemis; Contrarian Ventures |
| Chloris Geospatial | Carbon Removal Platforms | July 2025 | Series A | $8.5M | Uses satellite data and machine learning to measure forest biomass, carbon stocks and ecosystem change for nature-based climate projects. | North America | Future Energy Ventures |
| Tulum Energy | Industrial Climate Tech | July 2025 | Seed | $27M | Develops methane-pyrolysis technology that produces low-carbon hydrogen and solid carbon for hard-to-abate industries. | Europe | TDK Ventures; CDP Venture Capital |
| Yulu | Low Carbon Mobility | July 2025 | Series B | $3M | Operates shared and subscription-based electric two-wheelers for urban commuting and last-mile delivery. | Asia-Pacific | Not disclosed |
| BM2 Solar | Clean Energy Systems | July 2025 | Series A | ≈$2,300,000 | Co-locates and optimizes battery storage at existing solar plants to increase renewable-power flexibility and dispatch value. | Europe | Axon Partners Group |
| Crosstown H2R | Industrial Climate Tech | July 2025 | Seed | $3.8M | Develops retrofit burners that enable existing gas turbines to operate on hydrogen and other renewable fuels. | Europe | Not disclosed |
| Currentt | Clean Energy Systems | July 2025 | Seed | ≈$2,000,000 | Builds cyber-secure energy-management hardware and software that coordinates local generation, storage and electricity consumption. | Europe | Not disclosed |
| Climeworks | Carbon Removal Platforms | July 2025 | Growth Equity | $162M | Develops and operates direct-air-capture technology and permanent atmospheric carbon-removal services. | Europe | BigPoint Holding; Partners Group |
| Dexter Energy | Clean Energy Systems | July 2025 | Series C | ≈$27,100,000 | Provides AI forecasting and trading optimization software for renewable-power and battery portfolios. | Europe | Klima, Alantra's Energy Transition Fund |
| SolaRock | Building Decarbonization Tech | July 2025 | Unknown | ≈$8,200,000 | Installs and operates turnkey rooftop solar systems for homes and businesses through a locally distributed model. | Europe | Not disclosed |
| FieldFactors | Climate Adaptation Solutions | July 2025 | Unknown | ≈$1,900,000 | Builds nature-based systems that capture, treat, store and reuse urban rainwater to reduce flooding and water scarcity. | Europe | Connect the Drops |
| Solarix | Building Decarbonization Tech | July 2025 | Series A | ≈$4,900,000 | Designs and manufactures building-integrated solar façade panels that turn façades into electricity-generating surfaces. | Europe | Not disclosed |
| Steady Energy | Clean Energy Systems | July 2025 | Unknown | ≈$11,700,000 | Develops small modular nuclear reactors designed to provide emission-free district and industrial heat. | Europe | Not disclosed |
| Tibo Energy | Clean Energy Systems | June 2025 | Seed | ≈$6,900,000 | Provides AI-driven energy-management software coordinating distributed energy assets to reduce grid constraints and energy costs. | Europe | KOMPAS VC |
| DejaBlue | Low Carbon Mobility | June 2025 | Seed | $8M | Optimizes commercial EV charging, on-site solar and flexible electrical loads through an integrated energy-management platform. | Europe | redalpine |
| Battery Smart | Low Carbon Mobility | June 2025 | Series B | $21M | Operates a battery-as-a-service and battery-swapping network for electric two- and three-wheelers. | Asia-Pacific | Rising Tide Energy |
| Climatiq | Industrial Climate Tech | June 2025 | Series A | ≈$11,500,000 | Provides APIs and software infrastructure for embedding emissions calculations and carbon data directly into enterprise workflows. | Europe | Alstin Capital |
| EACON | Low Carbon Mobility | June 2025 | Series D+ | >$55,000,000 | Develops autonomous battery-electric haulage systems for open-pit mining operations. | Asia-Pacific | CATL Capital |
| Ignis Energy | Clean Energy Systems | June 2025 | Series A | $13.6M | Identifies, de-risks and develops geothermal power projects in multiple international markets. | North America | alfa8 |
| Enter | Building Decarbonization Tech | June 2025 | Series B | ≈$23,000,000 | Digitizes and manages energy-efficiency renovation projects for residential buildings from assessment through contractor implementation. | Europe | Not disclosed |
| Ostrom | Clean Energy Systems | June 2025 | Series B | ≈$23,000,000 | Supplies 100% renewable electricity through a digital utility platform with dynamic pricing, EV and battery automation, and virtual-power-plant capabilities. | Europe | Eneco Ventures |
| Tether | Low Carbon Mobility | June 2025 | Seed | ≈$1,495,000 | Aggregates EV batteries through software to provide flexible charging and grid-balancing capacity. | Europe | Draper B1; K Fund |
| HeatLeap | Building Decarbonization Tech | June 2025 | Unknown | ≈$1,150,000 | Develops all-electric heating systems designed to replace natural-gas heating in existing residential buildings. | Europe | Arket Ventures |
| TerraPower | Clean Energy Systems | June 2025 | Growth Equity | $650M | Develops advanced nuclear reactors and energy-storage-integrated nuclear power systems. | North America | Not disclosed |
| Pano AI | Climate Adaptation Solutions | June 2025 | Series B | $44M | Operates AI-enabled camera and intelligence networks for rapid wildfire detection and response. | North America | Giant Ventures |
| ENGRATE | Clean Energy Systems | June 2025 | Seed | ≈$2,875,000 | Provides software infrastructure for integrating and coordinating distributed energy assets across electricity-sector systems. | Europe | Maniv |
| Anzen | Building Decarbonization Tech | June 2025 | Seed | ≈$1,490,000 | Develops a plug-and-play solid-state heat-pump wall providing electric heating, cooling and ventilation without refrigerants. | Europe | Green Angel Ventures; Desai Ventures |
| FlexeCharge | Low Carbon Mobility | June 2025 | Series A | ≈$5,750,000 | Provides load, energy and grid-management software for commercial EV charging operators. | Europe | Not disclosed |
| Voltfang | Clean Energy Systems | June 2025 | Series B | ≈$17,250,000 | Builds stationary battery-storage systems, including systems using repurposed electric-vehicle batteries. | Europe | FORWARD.one |
| New Iridium | Industrial Climate Tech | June 2025 | Seed | $2.7M | Develops low-carbon photochemical processes for producing bio-based commodity chemicals that replace fossil-derived equivalents. | North America | Not disclosed |
| Proxima Fusion | Clean Energy Systems | June 2025 | Series A | $150M | Develops stellarator-based nuclear fusion power plants for commercial zero-carbon electricity generation. | Europe | Cherry Ventures; Balderton Capital |
| Standard Nuclear | Clean Energy Systems | June 2025 | Seed | $42M | Manufactures TRISO nuclear fuel for advanced reactors. | North America | Decisive Point |
| Voltavate | Clean Energy Systems | June 2025 | Seed | ≈$550,000 | Develops nanofibre battery separators designed to improve lithium-ion battery safety and energy density. | Asia-Pacific | Artesian |
| Co-Power | Clean Energy Systems | June 2025 | Seed | ≈$7,300,000 | Installs and operates solar-plus-storage systems for industrial sites under an energy-as-a-service model and aggregates them into virtual power plants. | Europe | Cherry Ventures |
| Coral Vita | Climate Adaptation Solutions | June 2025 | Series A | >$8,000,000 | Grows and restores climate-resilient coral reefs at ecosystem scale using land-based coral farms and restoration technology. | Latin America | Builders Vision |
| Tarnoc | Building Decarbonization Tech | June 2025 | Unknown | ≈$1,370,000 | Develops an all-electric turbine heat pump intended to replace gas boilers while retaining existing radiators. | Europe | Not disclosed |
| Aircapture | Carbon Removal Platforms | June 2025 | Series A | $50M | Builds modular direct-air-capture systems that produce captured atmospheric CO2 for industrial use and carbon removal. | North America | Not disclosed |
| Stride Green | Clean Energy Systems | June 2025 | Seed | $3.5M | Finances and manages electric-mobility, battery-storage and renewable-energy assets using a technology-enabled leasing platform. | Asia-Pacific | Micelio Technology Fund; Incubate Fund Asia |
| SWTCH Energy | Low Carbon Mobility | June 2025 | Series B | $4M | Provides EV-charging infrastructure and intelligent load-management software for multifamily and commercial properties. | North America | Not disclosed |
| Amber Electric | Clean Energy Systems | June 2025 | Growth Equity | ≈$29,300,000 | Provides renewable electricity retail and software that automatically controls household batteries and EV charging around wholesale power prices. | Asia-Pacific | ETF Partners |
| Kumulus Water | Climate Adaptation Solutions | June 2025 | Seed | $3.5M | Manufactures atmospheric water generators that produce drinking water locally from air humidity in water-stressed locations. | Europe | Not disclosed |
| Heron Power | Clean Energy Systems | May 2025 | Series A | $38M | Develops software-defined solid-state transformers and power electronics for modern electric grids. | North America | Capricorn Investment Group |
| Replace Energy | Clean Energy Systems | May 2025 | Seed | $2.1M | Uses AI to identify and assess viable sites for renewable-energy projects and accelerate project development. | Middle East | Gravity Climate |
| SkyNRG | Low Carbon Mobility | May 2025 | Growth Equity | $283M | Develops, produces and supplies sustainable aviation fuel for aviation decarbonization. | Europe | Not disclosed |
| Twindo | Clean Energy Systems | May 2025 | Seed | $1.1M | Provides field-operations and digital-inspection software for wind and other renewable-energy assets. | Europe | Volve Capital |
| ECOP Technologies | Industrial Climate Tech | May 2025 | Series A | $11.9M | Manufactures high-temperature industrial heat pumps designed to replace fossil-fuel process heat. | Europe | KSB |
| Kite Magnetics | Low Carbon Mobility | May 2025 | Seed | $2.3M | Develops high-efficiency electric motors and advanced magnetic materials aimed primarily at electric aviation. | Asia-Pacific | SQM Lithium Ventures |
| Converge | Industrial Climate Tech | May 2025 | Series A | $22M | Uses sensors, AI and concrete-performance data to reduce cement use, construction waste and embodied carbon. | Europe | ABN AMRO Sustainable Impact Fund |
| Promethean Energy | Industrial Climate Tech | May 2025 | Seed | $2M | Develops industrial heat pumps and waste-heat-recovery systems that replace fossil-fuel process heating. | Asia-Pacific | Transition VC |
| trawa | Clean Energy Systems | May 2025 | Series A | $27.1M | Supplies renewable electricity and AI-based energy procurement, management and flexibility software to commercial and industrial customers. | Europe | Headline |
| Alt Carbon | Carbon Removal Platforms | May 2025 | Seed | $12M | Removes atmospheric CO₂ through enhanced rock weathering deployed on agricultural land. | Asia-Pacific | Lachy Groom |
| Rhizome | Climate Adaptation Solutions | May 2025 | Seed | $6.5M | Provides climate-risk and resilience-planning software that helps electric utilities harden grids against extreme weather. | North America | Base10 Partners |
| Rivan | Industrial Climate Tech | May 2025 | Seed | $13.4M | Builds solar-powered modular plants that combine direct air capture and green hydrogen to manufacture synthetic fuels. | Europe | Plural |
| Sicona | Clean Energy Systems | May 2025 | Unknown | $9.7M | Develops silicon-carbon anode materials intended to increase lithium-ion battery energy density and charging performance. | Asia-Pacific | Not disclosed |
| SparkCharge | Low Carbon Mobility | May 2025 | Series A | $15.5M | Provides mobile, off-grid EV charging hardware and charging-as-a-service for electric-vehicle fleets. | North America | Monte's Fam |
| SUN METALON | Industrial Climate Tech | May 2025 | Series A | $9M | Develops electrified metal-processing equipment that recycles metal waste with substantially lower energy use and CO₂ emissions. | North America | Not disclosed |
| GDI | Low Carbon Mobility | May 2025 | Series A | $11.5M | Develops silicon-anode materials designed to increase the energy density and charging performance of EV batteries. | North America | Helios Climate Ventures; Impact NY; EIT InnoEnergy |
| Sublime Systems | Industrial Climate Tech | May 2025 | Unknown | $3M | Manufactures low-carbon cement using an electrochemical process that avoids conventional high-temperature cement kilns. | North America | Suffolk Technologies |
| Tan90 | Clean Energy Systems | May 2025 | Series A | $2.3M | Develops phase-change thermal-storage systems for energy-efficient cold-chain and industrial cooling. | Asia-Pacific | NABVENTURES |
| Euler Motors | Low Carbon Mobility | May 2025 | Series D+ | $74.5M | Manufactures electric commercial vehicles, particularly electric three- and four-wheelers for logistics. | Asia-Pacific | Hero MotoCorp |
| OroraTech | Climate Adaptation Solutions | May 2025 | Series B | $13.5M | Operates thermal-imaging satellites and software for wildfire detection, monitoring and risk intelligence. | Europe | BNP Paribas Solar Impulse Venture Fund |
| Bovotica | Industrial Climate Tech | May 2025 | Seed | $2.2M | Develops microbiome-based livestock treatments designed to suppress enteric methane emissions from cattle. | Asia-Pacific | Not disclosed |
| VFlowTech | Clean Energy Systems | May 2025 | Series A | $20.5M | Manufactures vanadium redox-flow batteries and energy-management software for long-duration energy storage. | Asia-Pacific | Granite Asia |
| Haier Energy | Clean Energy Systems | May 2025 | Series A | $97.2M | Develops and operates renewable-energy and distributed-energy solutions. | Asia-Pacific | Not disclosed |
| Realta Fusion | Clean Energy Systems | May 2025 | Series A | $36M | Develops compact magnetic-mirror fusion systems intended to supply clean power and industrial heat. | North America | Future Ventures |
| Rino | Low Carbon Mobility | May 2025 | Series B | $27.8M | Develops autonomous electric delivery vehicles and operating systems for urban and last-mile logistics. | Asia-Pacific | SF Express |
| Arysun | Clean Energy Systems | May 2025 | Seed | $575K | Provides affordable rooftop-solar solutions and related analytics for households in Southeast Asia. | Asia-Pacific | Wavemaker Impact |
| Breathe Battery Technologies | Clean Energy Systems | May 2025 | Series B | $21M | Develops software for designing, predicting and optimizing battery performance, charging and lifetime. | Europe | Kinnevik |
| Hy2gen | Clean Energy Systems | April 2025 | Growth Equity | ≈$23,400,000 | Develops, builds and operates renewable-hydrogen, green-ammonia and e-fuel production plants for hard-to-abate industries. | Europe | Hy24 |
| iwell | Clean Energy Systems | April 2025 | Series A | ≈$20,700,000 | Provides commercial and industrial battery-storage systems and energy-management software that maximize renewable-energy use and relieve grid congestion. | Europe | Meridiam |
| Mombak | Carbon Removal Platforms | April 2025 | Unknown | $30M | Restores degraded Amazon land with native forests to remove atmospheric CO₂ and generate high-durability reforestation carbon credits. | Latin America | Union Square Ventures |
| Electra | Industrial Climate Tech | April 2025 | Series B | $186M | Produces high-purity iron from low-grade ores using low-temperature electrochemistry powered by renewable electricity instead of fossil-fuel furnaces. | North America | Capricorn Investment Group; Temasek Holdings |
| RepAir Carbon | Carbon Removal Platforms | April 2025 | Series A | $15M | Develops an electrochemical system for low-energy capture of dilute CO₂ from industrial exhaust and ambient air. | Middle East | Taranis Carbon Ventures; Extantia Capital |
| Adaptavate | Building Decarbonization Tech | April 2025 | Unknown | ≈$2,600,000 | Develops low-carbon and carbon-storing bio-based plasterboard and construction-material technologies. | Europe | Not disclosed |
| node.energy | Clean Energy Systems | April 2025 | Series B | ≈$27,100,000 | Provides software enabling businesses to procure and manage electricity directly from wind and solar generators through renewable PPAs. | Europe | DeepTech & Climate Fund; eCAPITAL ENTREPRENEURIAL PARTNERS |
| 51toCarbonZero | Industrial Climate Tech | April 2025 | Unknown | ≈$2,000,000 | Provides software and expert support for companies to measure emissions, plan reductions and execute net-zero transitions. | Europe | Fuel Ventures |
| Exowatt | Clean Energy Systems | April 2025 | Series A | $35M | Builds modular solar-thermal generation and storage systems intended to provide dispatchable renewable electricity. | North America | Felicis |
| Irrigreen | Climate Adaptation Solutions | April 2025 | Series A | ≈$29,000,000 | Makes precision robotic irrigation systems that use digital mapping and weather data to substantially reduce outdoor water consumption. | North America | Natural Ventures |
| Omnidian | Clean Energy Systems | April 2025 | Series C | $87M | Provides performance assurance, monitoring and asset-management services for distributed solar and energy-storage systems. | North America | B Capital |
| Ensol | Clean Energy Systems | April 2025 | Unknown | ≈$2,800,000 | Provides residential solar systems and a solar-rental model designed to accelerate household adoption of distributed renewable power. | Europe | Breega |
| Caban Energy | Clean Energy Systems | April 2025 | Growth Equity | $50M | Designs, installs and operates battery-based clean Energy-as-a-Service systems for telecommunications and other critical infrastructure. | North America | Ember Infrastructure Management |
| Arnergy | Clean Energy Systems | April 2025 | Series B | $15M | Provides distributed solar-and-battery systems to Nigerian homes and businesses through ownership and lease-to-own models. | Africa | CardinalStone Capital Advisers |
| Base Power | Clean Energy Systems | April 2025 | Series B | $200M | Deploys large residential batteries and aggregates them into a distributed power fleet supporting the electricity grid. | North America | Addition; Andreessen Horowitz; Lightspeed Venture Partners; Valor Equity Partners |
| RayGen | Clean Energy Systems | April 2025 | Series D+ | ≈$29,000,000 | Develops utility-scale concentrated-solar generation combined with long-duration thermal and pumped-hydro energy storage. | Asia-Pacific | SLB |
| Adaptis | Building Decarbonization Tech | April 2025 | Seed | $4M | Uses AI to plan building retrofits and capital programs that reduce operational and embodied carbon. | North America | Building Ventures |
| GridSight | Clean Energy Systems | April 2025 | Series A | ≈$2,700,000 | Provides AI software that gives electricity networks visibility and orchestration capabilities for distributed energy resources. | Asia-Pacific | AirTree Ventures |
| Aerem | Clean Energy Systems | April 2025 | Series A | ≈$21,700,000 | Operates an end-to-end distributed-solar platform combining procurement, installation support, marketplace tools and financing. | Asia-Pacific | UTEC |
| Enpal | Clean Energy Systems | April 2025 | Growth Equity | ≈$220,000,000 | Provides integrated residential solar, batteries, heat pumps, smart meters and virtual-power-plant services. | Europe | TPG Rise Climate |
| Zero Industrial | Industrial Climate Tech | April 2025 | Series A | $10M | Develops and finances thermal-energy-storage systems that replace fossil-fuel heat in industrial processes. | North America | Evok Innovations |
| ARXAX | Low Carbon Mobility | April 2025 | Seed | ≈$2,100,000 | Builds a telematics-powered network connecting road-freight fleets with zero- and low-carbon refuelling and recharging infrastructure. | Europe | Not disclosed |
| Fourier | Clean Energy Systems | April 2025 | Series A | $18.5M | Develops modular on-site hydrogen production systems designed to make clean hydrogen locally from electricity and water. | North America | General Catalyst; Paramark Ventures |
| Gradyent | Clean Energy Systems | April 2025 | Series B | ≈$20,400,000 | Provides digital-twin software that optimizes district heating and cooling networks to reduce energy use, heat losses and emissions. | Europe | Blue Earth Capital |
| Caldera | Industrial Climate Tech | March 2025 | Series A | $12.9M | Stores renewable electricity as high-temperature heat for decarbonizing industrial steam and hot-water demand. | Europe | Not disclosed |
| montamo | Building Decarbonization Tech | March 2025 | Seed | $6.5M | Trains technicians and operates an installation platform for heat pumps and other residential electrification systems. | Europe | Alter Equity |
| Marvel Fusion | Clean Energy Systems | March 2025 | Series B | $54M | Develops laser-driven nuclear fusion technology for commercial zero-carbon power generation. | Europe | Not disclosed |
| ClimateCamp | Industrial Climate Tech | March 2025 | Seed | $3.8M | Provides Scope 3 emissions data, supplier engagement and reduction-planning software focused on cutting industrial value-chain emissions. | Europe | Expon Capital |
| Soldera | Clean Energy Systems | March 2025 | Seed | $2.7M | Automates management and trading of renewable electricity Guarantees of Origin and Renewable Energy Certificates. | Europe | Lifeline Ventures |
| Theion | Clean Energy Systems | March 2025 | Series A | $16.3M | Develops sulfur-crystal batteries intended to reduce battery cost, weight and lifecycle carbon footprint. | Europe | Team Global |
| Blueshift | Industrial Climate Tech | March 2025 | Seed | $2.1M | Develops electrochemical processing systems for lower-impact critical-mineral extraction while also enabling seawater CO₂ removal. | North America | Not disclosed |
| C1 Green Chemicals | Industrial Climate Tech | March 2025 | Series A | $16.4M | Develops catalysis technology for producing green methanol to replace fossil feedstocks in shipping, aviation and chemicals. | Europe | denkapparat |
| Capalo AI | Clean Energy Systems | March 2025 | Seed | $4.1M | Uses AI and virtual-power-plant software to optimize battery energy storage in electricity and balancing markets. | Europe | VentureFriends; PROfounders |
| Pulsetrain | Low Carbon Mobility | March 2025 | Seed | $6.7M | Develops integrated EV battery-management, inverter and charging electronics designed to extend battery life and improve drivetrain efficiency. | Europe | Vsquared Ventures; Planet A |
| Resilco | Industrial Climate Tech | March 2025 | Series A | $5.5M | Mineralizes industrial waste into secondary construction materials while permanently storing CO₂. | Europe | 360 Capital |
| SkySpecs | Clean Energy Systems | March 2025 | Series D+ | $20M | Provides autonomous inspections and asset-health software for wind and other renewable-energy assets. | North America | Goldman Sachs Alternatives |
| 257 | Building Decarbonization Tech | March 2025 | Seed | $9.2M | Builds household-level digital energy twins that help utilities and electrification providers target home energy upgrades. | North America | F2 Venture Capital |
| Homeostasis | Carbon Removal Platforms | March 2025 | Seed | $600K | Captures atmospheric CO₂ through mineralization and converts the captured carbon into industrial-grade graphite. | North America | Not disclosed |
| Peregrine Energy Solutions | Clean Energy Systems | March 2025 | Growth Equity | $53M | Develops and operates utility-scale battery energy storage projects. | North America | Not disclosed |
| tado° | Building Decarbonization Tech | March 2025 | Growth Equity | $32.7M | Provides smart thermostats, heat-pump optimization and home energy-management software that reduces heating energy use. | Europe | Not disclosed |
| SmartSolar | Clean Energy Systems | March 2025 | Seed | $1.9M | Finances, installs and operates rooftop solar systems for Vietnamese SMEs with no upfront customer investment. | Asia-Pacific | Picus Capital; 2degrees |
| Equilibrium Energy | Clean Energy Systems | March 2025 | Series B | $28M | Provides software and market infrastructure for optimizing renewable power, storage and electricity portfolios. | North America | GS Energy |
| Terabase Energy | Clean Energy Systems | March 2025 | Series C | $130M | Provides software, robotics and construction automation for utility-scale solar power plants. | North America | SoftBank Vision Fund 2 |
| Agros | Clean Energy Systems | March 2025 | Series A | $4.3M | Provides solar-powered irrigation systems that replace diesel pumping for Southeast Asian agriculture. | Asia-Pacific | Gaia Impact; Schneider Electric Energy Access Asia; Wavemaker Impact |
| DG Matrix | Clean Energy Systems | March 2025 | Seed | $20M | Develops solid-state power routers that integrate AC/DC power sources, storage and loads for electrification and grid-constrained sites. | North America | Clean Energy Ventures |
| Reshape Energy | Building Decarbonization Tech | March 2025 | Seed | $5.5M | Integrates building-energy assessment, electrification, solar and efficiency services for commercial property owners. | Europe | Vireo Ventures; PostScriptum Ventures |
| Supercritical | Industrial Climate Tech | March 2025 | Series A | $17.4M | Develops high-pressure, high-efficiency electrolysers for producing green hydrogen for chemicals and fuels. | Europe | Shell Ventures; Toyota Ventures |
| EcoJoule | Clean Energy Systems | March 2025 | Growth Equity | $9.5M | Builds community battery storage and voltage-control equipment that increases electric-grid capacity for distributed solar. | Asia-Pacific | Ellerston Capital Industrial Growth Fund; Fifth Estate Asset Management |
| Graphitic Energy | Industrial Climate Tech | March 2025 | Series A | $15M | Produces low-carbon hydrogen and solid graphite from natural gas through methane pyrolysis without direct CO₂ generation. | North America | Not disclosed |
| Echandia | Low Carbon Mobility | March 2025 | Series A | $20.9M | Manufactures high-power battery systems for electrifying ferries, vessels and other heavy-duty maritime transport. | Europe | Klima; Industrifonden |
| AtmoCooling | Climate Adaptation Solutions | March 2025 | Seed | $2.6M | Uses seawater evaporative cooling to create cooler, more humid microclimates for agriculture in extremely hot and arid regions. | North America | Nucleus Capital; Revent Ventures |
| Ocean Ledger | Climate Adaptation Solutions | March 2025 | Seed | $900K | Uses satellite and geospatial analytics to quantify coastal climate risks and identify adaptation interventions. | Europe | Ananda Impact Ventures; Silverstrand Capital |
| Renfusion | Clean Energy Systems | March 2025 | Series A | $33.2M | Develops stellarator fusion reactors and high-temperature superconducting technologies for commercial fusion power. | Europe | Crédit Mutuel Impact |
| Spiritus | Carbon Removal Platforms | March 2025 | Series A | $30M | Develops modular direct-air-capture systems designed for large-scale permanent CO₂ removal. | North America | Aramco Ventures |
| Glimp | Clean Energy Systems | March 2025 | Series A | $10M | Provides automated X-ray CT inspection and quality analytics for battery manufacturing. | North America | TDK Ventures |
| Installer | Clean Energy Systems | March 2025 | Seed | $4M | Provides software that coordinates installation and maintenance of heat pumps, batteries, EV chargers and other distributed-energy assets. | Europe | Brighteye Ventures |
| Radical Dot | Industrial Climate Tech | March 2025 | Seed | $2.9M | Uses low-temperature catalytic chemistry to turn mixed plastic waste into non-fossil chemical feedstocks. | Europe | UVC Partners; Visionaries Tomorrow |
| Mote | Carbon Removal Platforms | March 2025 | Series A | $7M | Converts forestry and agricultural waste into hydrogen while permanently storing the resulting biogenic CO₂. | North America | Nella Next; Preston-Werner Ventures |
| Stargate Hydrogen | Industrial Climate Tech | March 2025 | Series A | $11.5M | Manufactures precious-metal-free alkaline electrolyser stacks and systems for green hydrogen production. | Europe | Not disclosed |
| Moonwatt | Clean Energy Systems | March 2025 | Seed | $8.3M | Develops sodium-ion battery storage optimized to make utility-scale solar power dispatchable around the clock. | Europe | daphni; LEA Partners |
| PHNXX | Clean Energy Systems | March 2025 | Seed | $1.1M | Builds modular “grid-in-a-box” renewable microgrid systems for off-grid and distributed-energy applications. | Asia-Pacific | Not disclosed |
| CarbonQuest | Industrial Climate Tech | February 2025 | Growth Equity | $20M | Builds modular point-source carbon-capture systems for buildings, distributed power and smaller industrial facilities. | North America | Riverbend Energy Group |
| ctrl+s | Industrial Climate Tech | February 2025 | Seed | ≈$1,040,000 | Provides supply-chain carbon analytics and supplier-management software for corporate decarbonization. | Europe | High-Tech Gründerfonds |
| Adaptive Insurance | Climate Adaptation Solutions | February 2025 | Seed | $5M | Builds climate-risk data and parametric insurance products covering weather and climate-related disruptions. | North America | Congruent Ventures |
| Mitico | Industrial Climate Tech | February 2025 | Seed | $4.3M | Develops modular sorbent systems for capturing CO₂ from industrial point-source emissions. | North America | Exergon |
| Deutsche Sanierungsberatung | Building Decarbonization Tech | February 2025 | Seed | ≈$3,750,000 | Runs a digital platform and service network for energy-efficiency renovations including insulation, solar and heat pumps. | Europe | Vireo Ventures |
| Hydrogenious LOHC Technologies | Clean Energy Systems | February 2025 | Growth Equity | >≈$17,700,000 | Develops liquid-organic-hydrogen-carrier technology for large-scale storage and transportation of hydrogen. | Europe | Not disclosed |
| Scale Energy | Clean Energy Systems | February 2025 | Seed | ≈$2,080,000 | Develops and operates distributed industrial battery-storage projects that support renewable generation and grid flexibility. | Europe | Climentum Capital |
| Ignis Energy | Clean Energy Systems | February 2025 | Series A | $12.5M | Develops and explores geothermal resources for utility-scale low-carbon power generation. | North America | alfa8 |
| Dynolt | Low Carbon Mobility | February 2025 | Seed | $1.7M | Develops software-defined power converters and fast-charging electronics for EVs and other clean-energy applications. | Asia-Pacific | Transition VC |
| Terra CO2 | Building Decarbonization Tech | February 2025 | Series B | $82M | Produces low-carbon supplementary cementitious materials from abundant silicate rocks to reduce Portland-cement use. | North America | Just Climate; Eagle Materials; GenZero |
| HydGen | Clean Energy Systems | February 2025 | Seed | ≈$1,480,000 | Develops compact on-site electrolyzer systems for decentralized production of green hydrogen. | Asia-Pacific | Cloudberry Pioneer Investments |
| Carbon Zero | Carbon Removal Platforms | February 2025 | Seed | $3.5M | Produces biochar from agricultural and forestry residues for carbon removal and soil application. | North America | Not disclosed |
| Proba | Industrial Climate Tech | February 2025 | Seed | ≈$1,040,000 | Provides carbon-insetting infrastructure that finances and verifies emissions reductions within agri-food supply chains. | Europe | Future Food Fund; The Yield Lab Europe |
| Renew Risk | Clean Energy Systems | February 2025 | Seed | ≈$6,250,000 | Builds catastrophe, engineering and exposure-risk models specifically for renewable-energy infrastructure. | Europe | Molten Ventures |
| Agteria | Industrial Climate Tech | February 2025 | Seed | ≈$6,230,000 | Develops feed additives designed to substantially reduce methane emissions from cattle. | Europe | Industrifonden; AgriZeroNZ |
| Chestnut Carbon | Carbon Removal Platforms | February 2025 | Series B | $160M | Develops afforestation projects on marginal U.S. farmland to generate durable nature-based carbon removals. | North America | Not disclosed |
| Sparke Fuels | Low Carbon Mobility | February 2025 | Seed | ≈$2,390,000 | Develops load-flexible e-fuel production technology for sustainable aviation fuel using renewable electricity and CO₂. | Europe | Nucleus Capital |
| ACCURE Battery Intelligence | Clean Energy Systems | February 2025 | Series B | $16M | Provides predictive battery analytics to improve safety, reliability and performance of energy-storage systems and EV fleets. | Europe | Incharge Capital Partners |
| Noovoleum | Industrial Climate Tech | February 2025 | Unknown | $3M | Operates technology-enabled collection systems that recover used cooking oil for conversion into biofuel. | Asia-Pacific | Rigel Capital |
| Act-ion | Clean Energy Systems | February 2025 | Unknown | $7.5M | Develops faster and lower-cost manufacturing technology for lithium-ion cathode active materials. | North America | BASF Venture Capital |
| ReCarber | Carbon Removal Platforms | February 2025 | Seed | ≈$5,300,000 | Develops and finances bioenergy carbon capture and storage projects and commercializes their carbon-removal credits. | Europe | Luminar Ventures; Spintop Ventures; Course Corrected |
| The Energy Company | Low Carbon Mobility | February 2025 | Unknown | $2M | Develops battery packs and battery-intelligence technology primarily for commercial electric-vehicle fleets. | Asia-Pacific | Not disclosed |
| Mantle8 | Clean Energy Systems | February 2025 | Seed | ≈$3,540,000 | Uses geophysics, geochemistry and seismic modelling to locate and quantify naturally occurring hydrogen reservoirs. | Europe | Not disclosed |
| Imperium Technologies | Industrial Climate Tech | February 2025 | Unknown | >$1,200,000 | Develops smart steam traps and monitoring software that reduce wasted fuel and emissions in industrial steam systems. | North America | Central Texas Angel Network; Springbok Ventures |
| MacroCycle | Industrial Climate Tech | February 2025 | Seed | $6.5M | Upcycles PET and polyester waste into virgin-grade resin using a lower-energy chemical process. | North America | Clean Energy Ventures; Volta Circle |
| Podero | Clean Energy Systems | February 2025 | Seed | ≈$5,720,000 | Software enables utilities to optimize and trade the flexibility of EVs, heat pumps, batteries and other distributed energy resources. | Europe | Planet A Ventures |
| Presto | Low Carbon Mobility | February 2025 | Seed | $15M | Provides software and payment infrastructure that lets commercial EV fleets charge across multiple public charging networks. | North America | Union Square Ventures |
| IONATE | Clean Energy Systems | February 2025 | Series A | $17M | Builds smart-transformer hardware and grid-control software for more flexible, efficient electricity networks. | Europe | AlbionVC |
| Sequestra | Industrial Climate Tech | February 2025 | Seed | ≈$1,140,000 | Develops technology to permanently mineralize CO₂ in industrial residues such as steel slag and demolition waste. | Europe | Not disclosed |
| Adia Thermal | Building Decarbonization Tech | February 2025 | Unknown | ≈$374,000 | Develops hardware and controls that simplify heat-pump retrofits in existing homes. | Europe | Blackfinch Ventures |
| Epyr | Industrial Climate Tech | February 2025 | Seed | ≈$3,120,000 | Develops firebrick thermal-energy-storage systems to electrify and decarbonize high-temperature industrial heat. | Europe | AENU; Daphni |
| SplitEV | Low Carbon Mobility | February 2025 | Seed | $750K | Operates a software platform for sharing and accessing private and public EV charging infrastructure. | North America | Not disclosed |
| Connected Kerb | Low Carbon Mobility | January 2025 | Growth Equity | ≈$20,900,000 | Develops and operates long-dwell public EV charging infrastructure, primarily for drivers without off-street parking. | Europe | Not disclosed |
| Niko | Clean Energy Systems | January 2025 | Seed | $8M | Installs and finances residential solar and battery systems and aggregates them into distributed energy resources. | Latin America | QED Investors |
| OCELL | Carbon Removal Platforms | January 2025 | Series A | ≈$20,300,000 | Uses remote sensing and software to manage forests for increased carbon sequestration and generate forest carbon projects. | Europe | Capnamic |
| Helion Energy | Clean Energy Systems | January 2025 | Series D+ | $425M | Develops pulsed fusion systems intended to generate zero-carbon electricity directly from fusion reactions. | North America | Not disclosed |
| HYBIRD | Building Decarbonization Tech | January 2025 | Unknown | ≈$2,470,000 | Develops intelligent electrical panels and energy-cloud software that automate building and industrial energy consumption. | Europe | BackingMinds; Transition |
| Keey Aerogel | Building Decarbonization Tech | January 2025 | Series A | ≈$28,500,000 | Manufactures low-carbon silica aerogel insulation using recycled construction materials and a closed-loop production process. | Europe | SPI 2; WIND |
| Mangrove Lithium | Clean Energy Systems | January 2025 | Series B | $35M | Develops electrochemical refining technology that converts lithium feedstocks into battery-grade lithium chemicals. | North America | Not disclosed |
| VEIR | Clean Energy Systems | January 2025 | Series B | $75M | Develops superconducting power-transmission systems capable of carrying substantially more electricity through constrained corridors. | North America | Munich Re Ventures |
| Voltiris | Clean Energy Systems | January 2025 | Seed | ≈$2,280,000 | Makes spectral solar modules that generate electricity above greenhouses while transmitting wavelengths needed by crops. | Europe | EquityPitcher Ventures; 3M Ventures |
| Gridio | Low Carbon Mobility | January 2025 | Seed | ≈$2,470,000 | Provides software that automatically shifts EV charging and distributed energy use to cheaper and cleaner grid periods. | Europe | Neoinvesteeringud |
| Sightline Climate | Industrial Climate Tech | January 2025 | Seed | $5.5M | Provides market intelligence and data for companies, investors and governments operating across the low-carbon transition economy. | Europe | The Westly Group; Molten Ventures |
| CapeZero | Clean Energy Systems | January 2025 | Seed | $2.6M | Provides financial-modeling software for structuring tax equity and project finance for renewable-energy projects. | North America | Powerhouse Ventures |
| Chapter | Clean Energy Systems | January 2025 | Unknown | ≈$2,090,000 | Provides AI knowledge software for manufacturers and installers of heat pumps, solar systems and EV chargers. | Europe | Rubio Impact Ventures; CapitalT |
| Enapi | Low Carbon Mobility | January 2025 | Seed | ≈$2,730,000 | Provides transaction and interoperability infrastructure connecting EV charge-point operators with mobility-service providers. | Europe | Voyager Ventures |
| Bedrock Energy | Building Decarbonization Tech | January 2025 | Series A | $12M | Designs and installs geothermal heating and cooling systems for buildings using advanced drilling technology. | North America | Titanium Ventures |
| Gravity Climate | Industrial Climate Tech | January 2025 | Series A | $13M | Provides carbon-accounting and energy-management software that identifies and executes industrial emissions-reduction opportunities. | North America | Ansa Capital |
| Green Fusion | Building Decarbonization Tech | January 2025 | Series A | ≈$22,400,000 | Uses software and AI to optimize heating systems in multifamily and commercial buildings. | Europe | HV Capital; XAnge |
| Aegis Energy | Low Carbon Mobility | January 2025 | Growth Equity | Up To ≈$222,000,000 | Develops multi-energy refuelling hubs for zero- and low-emission commercial vehicles. | Europe | Not disclosed |
| Alteva | Low Carbon Mobility | January 2025 | Seed | ≈$2,750,000 | Develops lightweight battery-cell technology intended to electrify transport applications. | Europe | High-Tech Gründerfonds |
| ecoplanet | Clean Energy Systems | January 2025 | Series A | ≈$26,500,000 | Provides energy-management software that optimizes commercial electricity consumption and procurement against power-market conditions. | Europe | EQT Ventures |
| Fusebox | Clean Energy Systems | January 2025 | Unknown | ≈$2,680,000 | Provides virtual-power-plant and energy-management software for balancing distributed generation, storage and electricity demand. | Europe | Soulmates Ventures |
| BeZero Carbon | Carbon Removal Platforms | January 2025 | Series C | $32M | Provides independent carbon-credit ratings and risk analytics for voluntary and compliance carbon markets. | Europe | GenZero |
| Elcogen | Clean Energy Systems | January 2025 | Unknown | ≈$2,150,000 | Manufactures solid-oxide fuel-cell and electrolyzer technology for efficient low-carbon power and hydrogen production. | Europe | Not disclosed |
| Green Flexibility | Clean Energy Systems | January 2025 | Growth Equity | Up To ≈$212,000,000 | Develops, builds and operates grid-scale battery-storage projects. | Europe | Not disclosed |
| H2SITE | Industrial Climate Tech | January 2025 | Series B | ≈$27,100,000 | Develops membrane reactors and separation systems for producing, transporting and recovering low-carbon hydrogen. | Europe | Hy24; SC Net Zero Ventures |
| Moment Energy | Clean Energy Systems | January 2025 | Series A | $15M | Repurposes used EV batteries into stationary battery-energy-storage systems. | North America | Amazon Climate Pledge Fund; Voyager Ventures |
| Origen | Carbon Removal Platforms | January 2025 | Series A | $13M | Uses limestone-based direct-air-capture technology to remove atmospheric CO₂ for permanent storage. | Europe | Barclays Climate Ventures |
| Amogy | Industrial Climate Tech | January 2025 | Unknown | $56M | Develops ammonia-to-power systems that convert ammonia into hydrogen for zero-carbon power in shipping and heavy industry. | North America | Aramco Ventures; SV Investment |
| Circunomics | Clean Energy Systems | January 2025 | Series A | >≈$2,200,000 | Runs a battery-lifecycle and marketplace platform that enables reuse, second-life deployment and recycling of EV batteries. | Europe | GET Fund; Schaeffler Invest |
| Metafuels | Low Carbon Mobility | January 2025 | Unknown | $9M | Develops synthetic aviation fuel produced from renewable hydrogen and carbon feedstocks. | Europe | Celsius Industries |
| Harbinger Motors | Low Carbon Mobility | January 2025 | Series B | $100M | Develops electric chassis systems for medium-duty commercial vehicles. | North America | Capricorn Technology Impact Fund; Leitmotif |
| Naco Technologies | Industrial Climate Tech | January 2025 | Seed | ≈$2,550,000 | Makes nano-coatings that reduce the use of scarce precious metals in hydrogen and other clean-energy equipment. | Europe | Radix Ventures; Impact Ventures; Kendris Capital |
| Protium | Industrial Climate Tech | January 2025 | Series B | >≈$27,800,000 | Develops and operates green-hydrogen and renewable-energy projects for industrial decarbonization. | Europe | Barclays Principal Investments; SWEN Capital Partners |
| Hycamite | Industrial Climate Tech | January 2025 | Series A | ≈$25,300,000 | Produces low-carbon hydrogen and solid carbon by splitting methane without releasing the carbon as CO₂. | Europe | Sojitz Group |
| Advanced Ionics | Industrial Climate Tech | January 2025 | Unknown | $6.7M | Develops water-vapor electrolyzers that use industrial heat to produce low-carbon hydrogen. | North America | Not disclosed |
| Gridware | Clean Energy Systems | January 2025 | Series A | $26.4M | Provides pole-mounted sensors and analytics that detect faults and wildfire risks on electricity distribution grids. | North America | Sequoia Capital |
| Altilium | Clean Energy Systems | January 2025 | Series B | $5M | Recovers battery materials from end-of-life EV batteries for reuse in new lithium-ion batteries. | Europe | Not disclosed |
| EMO Energy | Clean Energy Systems | January 2025 | Series A | $6.2M | Builds battery packs, charging systems and battery-management software for electric mobility and stationary storage. | Asia-Pacific | Subhkam Ventures |
| Qvantum | Building Decarbonization Tech | January 2025 | Series C | ≈$25,800,000 | Develops network-connected heat pumps and thermal-energy systems for low-carbon building heating. | Europe | Thomas von Koch; IMAS Foundation; Mats Rahmström |
| Electra | Industrial Climate Tech | January 2025 | Unknown | $180.4M | Produces low-carbon iron using an electrochemical process designed to replace emissions-intensive ironmaking. | North America | Not disclosed |
| Hexana | Clean Energy Systems | January 2025 | Seed | ≈$25,450,000 | Develops sodium-cooled fast modular nuclear reactors with thermal storage for low-carbon industrial energy. | Europe | Not disclosed |
| AVATR | Low Carbon Mobility | December 2024 | Series C | >$1,510,000,000 | Designs and manufactures premium intelligent battery-electric passenger vehicles. | Asia-Pacific | Not disclosed |
| Artem | Industrial Climate Tech | December 2024 | Seed | ≈$1,600,000 | Develops technology for directly measuring industrial greenhouse-gas emissions and generating emissions data for carbon-border compliance. | Europe | Vireo Ventures |
| Electrified Thermal Solutions | Industrial Climate Tech | December 2024 | Series A | $19M | Develops electrically heated thermal batteries for replacing fossil-fuel combustion in high-temperature industrial processes. | North America | Not disclosed |
| Terradot | Carbon Removal Platforms | December 2024 | Series A | $54M | Removes atmospheric CO₂ through enhanced rock weathering deployed on agricultural land. | North America | John Doerr |
| Bnewable | Clean Energy Systems | December 2024 | Growth Equity | ≈$42,000,000 | Provides battery-as-a-service systems and energy-management software for commercial and industrial sites. | Europe | Not disclosed |
| Enzinc | Clean Energy Systems | December 2024 | Series A | $8M | Develops rechargeable zinc battery technology designed as a safer, lower-impact alternative to lithium-ion systems. | North America | TO VC |
| Powernaut | Clean Energy Systems | December 2024 | Seed | ≈$2,500,000 | Builds orchestration software that coordinates distributed solar, batteries, EVs and heat pumps for energy suppliers. | Europe | Revent |
| SolarSquare | Clean Energy Systems | December 2024 | Series B | $40M | Installs and operates residential rooftop-solar systems for households in India. | Asia-Pacific | Lightspeed Venture Partners |
| SpotmyEnergy | Clean Energy Systems | December 2024 | Seed | ≈$11,000,000 | Provides smart meters and home energy-management software that orchestrates solar, batteries, EV charging and heat pumps. | Europe | Norrsken VC |
| Next Sense | Building Decarbonization Tech | December 2024 | Series A | ≈$12,100,000 | Provides a smart-building platform using monitoring, simulation and AI controls to reduce building energy use and emissions. | Europe | ABP; ETF Partners |
| Raptor Maps | Clean Energy Systems | December 2024 | Series C | $35M | Provides digital-twin and asset-management software for monitoring and optimizing utility-scale solar fleets. | North America | Maverix Private Equity |
| Syro | Low Carbon Mobility | December 2024 | Series A | ≈$7,900,000 | Provides simulation and optimization software that helps ships reduce fuel consumption and emissions. | Europe | alter equity |
| Elyse Energy | Industrial Climate Tech | December 2024 | Growth Equity | ≈$126,000,000 | Develops production projects for low-carbon e-methanol and sustainable aviation fuel. | Europe | Not disclosed |
| EnSights | Clean Energy Systems | December 2024 | Series A | $10M | Provides AI software for monitoring and optimizing the performance of renewable-energy assets. | North America | JAL Ventures; XT VC |
| Heirloom | Carbon Removal Platforms | December 2024 | Series B | $150M | Uses limestone-based direct air capture systems to remove CO₂ permanently from ambient air. | North America | Future Positive; Lowercarbon Capital |
| PXP | Clean Energy Systems | December 2024 | Series A | ≈$10,000,000 | Develops lightweight flexible tandem solar cells combining perovskite and chalcopyrite photovoltaic technologies. | Asia-Pacific | SoftBank Corp. |
| Zitara | Clean Energy Systems | December 2024 | Unknown | $17M | Develops battery-management and control software that improves performance and reliability of stationary energy-storage systems. | North America | Salesforce Ventures |
| Acceleron | Clean Energy Systems | December 2024 | Series A | $24M | Develops muon-catalyzed fusion technology intended to produce low-carbon grid electricity. | North America | Lowercarbon Capital; Collaborative Fund |
| Carbmee | Industrial Climate Tech | December 2024 | Series A | ≈$21,000,000 | Provides enterprise software for measuring supply-chain emissions and managing corporate decarbonization. | Europe | CommerzVentures |
| Everest Carbon | Carbon Removal Platforms | December 2024 | Unknown | $3M | Builds measurement technology for quantifying CO₂ removal from enhanced rock weathering. | North America | Carbon Removal Partners |
| metergrid | Building Decarbonization Tech | December 2024 | Seed | ≈$3,700,000 | Provides software and services for decentralized solar-based tenant electricity systems in multi-unit buildings. | Europe | Hager |
| National Renewable Network | Clean Energy Systems | November 2024 | Unknown | ≈$2,800,000 | Finances and deploys household solar-and-battery systems with no upfront customer payment to expand distributed renewable-energy adoption. | Asia-Pacific | Club Investible syndicate |
| Molyon | Clean Energy Systems | November 2024 | Seed | $4.6M | Develops high-energy-density lithium-sulfur batteries using a molybdenum-disulfide cathode technology. | Europe | IQ Capital; Plural |
| Striemo | Low Carbon Mobility | November 2024 | Series A | ≈$2,300,000 | Develops stable three-wheel electric personal-mobility vehicles for short urban trips. | Asia-Pacific | Delight Ventures |
| ALT Mobility | Low Carbon Mobility | November 2024 | Series A | $10M | Provides leasing, charging, servicing and asset-management infrastructure for commercial electric-vehicle fleets. | Asia-Pacific | Eurazeo |
| Reefilla | Clean Energy Systems | November 2024 | Unknown | ≈$2,800,000 | Builds mobile and stationary energy-storage services using circular and second-life battery systems. | Europe | CDP Venture Capital (Green Transition Fund-PNRR); HCapital; Azimut (ALIcrowd III); Motor Valley Accelerator |
| etalytics | Industrial Climate Tech | November 2024 | Series A | ≈$2,400,000 | Uses AI and digital twins to optimize cooling, heating and industrial energy systems for lower electricity use and emissions. | Europe | Alstin Capital; ebm-papst |
| HyperHeat | Industrial Climate Tech | November 2024 | Unknown | ≈$2,700,000 | Develops renewable-electric industrial heaters capable of replacing fossil-fuel burners at temperatures up to roughly 2,000°C. | Europe | Amadeus APEX Technology Fund |
| Svante | Industrial Climate Tech | November 2024 | Growth Equity | ≈$20,700,000 | Manufactures solid-sorbent filters and modular contactors for capturing CO₂ from industrial emissions. | North America | Not disclosed |
| METRON | Industrial Climate Tech | November 2024 | Growth Equity | ≈$23,000,000 | Provides digital energy-management and optimization software for industrial facilities to reduce energy consumption and emissions. | Europe | GET Fund |
| Candela | Low Carbon Mobility | November 2024 | Series C | $14M | Develops battery-electric hydrofoil boats and ferries that sharply reduce energy use in waterborne transport. | Europe | SEB Private Equity |
| Epic Cleantec | Climate Adaptation Solutions | November 2024 | Series B | $12M | Builds onsite water-reuse systems that recycle wastewater within buildings to reduce potable-water demand and improve resilience. | North America | Family office of Drs. Kathy Fields and Garry Rayant |
| Liquid Wind | Industrial Climate Tech | November 2024 | Series C | ≈$27,000,000 | Develops commercial-scale renewable eMethanol plants for shipping and other hard-to-abate uses. | Europe | Uniper; HYCAP Fund I SCSp; Samsung Ventures |
| Tokamak Energy | Clean Energy Systems | November 2024 | Growth Equity | $125M | Develops compact fusion-energy systems and high-temperature superconducting magnet technology. | Europe | East X Ventures; Lingotto Investment Management |
| Vecmocon | Low Carbon Mobility | November 2024 | Series A | $10M | Develops battery-management, vehicle-intelligence and charging electronics for electric two- and three-wheel vehicles. | Asia-Pacific | Ecosystem Integrity Fund |
| Ecolectro | Clean Energy Systems | November 2024 | Series A | $10.5M | Develops anion-exchange-membrane electrolyzers designed to lower the cost and material intensity of green-hydrogen production. | North America | Toyota Ventures |
| Elicit Plant | Climate Adaptation Solutions | November 2024 | Series B | $48M | Develops phytosterol-based crop biosolutions that reduce water demand and improve crop resilience to drought and environmental stress. | Europe | Carbyne Equity Partners |
| ePlaneAI | Low Carbon Mobility | November 2024 | Series B | $14M | Develops battery-electric eVTOL aircraft for short-distance urban passenger transportation. | Asia-Pacific | Speciale Invest; Antares Ventures |
| Vaulted Deep | Carbon Removal Platforms | November 2024 | Series A | $32.3M | Permanently stores carbon-rich organic waste underground as a biomass carbon-removal and storage service. | North America | Prelude Ventures |
| Woltair | Building Decarbonization Tech | November 2024 | Series B | Not Disclosed | Digitizes and delivers residential heat-pump and solar installations through a software-enabled installer network. | Europe | Fifth Wall |
| Feld Energy | Clean Energy Systems | November 2024 | Seed | ≈$2,800,000 | Develops agrivoltaic projects that combine agricultural land use with renewable solar-electricity generation. | Europe | HV Capital |
| Gazelle Wind Power | Clean Energy Systems | November 2024 | Unknown | ≈$22,100,000 | Develops modular floating offshore-wind platforms for deployment in deep-water wind projects. | Europe | Indico Capital Partners |
| OpenAirlines | Low Carbon Mobility | November 2024 | Growth Equity | ≈$27,000,000 | Provides flight-operations optimization software that reduces airline fuel consumption and CO₂ emissions. | Europe | Eiffel Investment Group |
| Sympower | Clean Energy Systems | November 2024 | Series B | ≈$22,600,000 | Operates demand-response, battery and renewable-asset flexibility services that balance electricity grids and support renewable integration. | Europe | A&G Energy Transition Tech Fund |
| Anthrogen | Industrial Climate Tech | November 2024 | Seed | $4M | Engineers microbes and enzymes to convert captured atmospheric carbon into low-carbon chemicals and fuels. | North America | ReGen Ventures; BoxGroup |
| Copernic Catalysts | Industrial Climate Tech | November 2024 | Seed | $8M | Develops catalysts intended to reduce the energy and emissions intensity of ammonia, fuels and industrial chemical production. | North America | Breakout Ventures |
| General Galactic | Industrial Climate Tech | November 2024 | Seed | $8M | Converts captured industrial CO₂ and low-carbon hydrogen into fossil-free synthetic natural gas. | North America | Harpoon Ventures; Refactor Capital |
| Helix Earth Technologies | Building Decarbonization Tech | November 2024 | Seed | $5.6M | Develops retrofit HVAC technology that reduces the energy required for cooling and dehumidification in commercial buildings. | North America | Veriten |
| Klim | Climate Adaptation Solutions | November 2024 | Series A | $22M | Provides a regenerative-agriculture platform that helps farmers improve soil resilience and food companies reduce agricultural supply-chain emissions. | Europe | BNP Paribas |
| KUGU | Building Decarbonization Tech | November 2024 | Series A | ≈$2,000,000 | Provides connected controls and software that monitor and automatically optimize heating systems in existing buildings. | Europe | Tengelmann Ventures; Gewobag ID |
| tozero | Industrial Climate Tech | November 2024 | Seed | ≈$21,700,000 | Recycles lithium-ion batteries to recover lithium and other critical materials for new battery production. | Europe | NordicNinja |
| DREM | Building Decarbonization Tech | November 2024 | Unknown | ≈$2,070,000 | Digitizes heat-pump sales, installation and smart operation to reduce residential heating emissions and energy use. | Europe | Not disclosed |
| Glint Solar | Clean Energy Systems | November 2024 | Series A | $8M | Provides software for solar developers to identify, evaluate and pre-design solar and battery-storage sites. | Europe | Smedvig Ventures |
| ZE Energy | Clean Energy Systems | November 2024 | Growth Equity | ≈$28,000,000 | Develops hybrid solar-plus-battery power plants designed to deliver controllable renewable electricity. | Europe | Amundi Transition Énergétique |
| Ampd Energy | Clean Energy Systems | November 2024 | Series B | $27.3M | Manufactures battery energy-storage systems that replace diesel generators on construction and other heavy-industry sites. | Asia-Pacific | Kibo Invest; Openspace |
| Artio | Carbon Removal Platforms | November 2024 | Seed | ≈$215,000 | Provides insurance and risk analytics designed to make early-stage carbon-removal projects more financeable. | Europe | Lifetime Ventures |
| CrewCarbon | Carbon Removal Platforms | November 2024 | Seed | $5.3M | Integrates enhanced-weathering systems into wastewater treatment plants to remove and durably store biogenic CO₂. | North America | Counteract Partners |
| SeaO2 | Carbon Removal Platforms | November 2024 | Seed | ≈$2,180,000 | Develops electrochemical Direct Ocean Capture technology that extracts CO₂ from seawater for storage or use. | Europe | Not disclosed |
| Transaera | Building Decarbonization Tech | November 2024 | Seed | $8.2M | Develops energy-efficient air-conditioning and dehumidification systems using advanced moisture-removal materials. | North America | Clean Energy Ventures |
| Zerotude | Building Decarbonization Tech | November 2024 | Unknown | ≈$250,000 | Provides software and services for property owners to plan and execute building-energy and decarbonization improvements. | Europe | Not disclosed |
| Beta Technologies | Low Carbon Mobility | October 2024 | Series C | $318M | Develops electric aircraft and charging infrastructure for zero-emission aviation. | North America | Qatar Investment Authority |
| Delos | Climate Adaptation Solutions | October 2024 | Series A | $9M | Uses wildfire-risk modeling to provide property insurance in areas increasingly exposed to climate-driven wildfire risk. | North America | HSBC Asset Management |
| Flower | Clean Energy Systems | October 2024 | Series A | ≈$21,700,000 | Owns and optimizes battery-storage and flexible energy assets for electricity grids. | Europe | Northzone |
| LuxWall | Building Decarbonization Tech | October 2024 | Series B | $51M | Manufactures vacuum-insulating glazing that reduces heating and cooling energy loss through windows. | North America | Climate Investment; Barclays Sustainable Impact Capital |
| RedoxBlox | Industrial Climate Tech | October 2024 | Series A | $30M | Stores electricity as high-temperature thermochemical energy for industrial heat and long-duration grid storage. | North America | Prelude Ventures |
| NetZero | Carbon Removal Platforms | October 2024 | Series A | ≈$7,600,000 | Produces biochar from agricultural residues to durably remove atmospheric carbon and improve soils. | Europe | Not disclosed |
| Beyond Aero | Low Carbon Mobility | October 2024 | Series A | $20M | Develops hydrogen-electric business aircraft intended to eliminate in-flight CO2 emissions. | Europe | Giant Ventures; Bpifrance Deep Tech 2030 |
| Vamo | Building Decarbonization Tech | October 2024 | Seed | ≈$7,600,000 | Installs and services residential heat pumps to replace fossil-fuel heating systems. | Europe | Not disclosed |
| Pacific Fusion | Clean Energy Systems | October 2024 | Series A | >$900,000,000 | Develops pulsed-magnetic fusion systems for zero-carbon electricity generation. | North America | General Catalyst |
| Aether | Clean Energy Systems | October 2024 | Seed | $2.5M | Automates rooftop-solar design and workflow for solar installers using AI. | Europe | noa |
| Planetary Technologies | Carbon Removal Platforms | October 2024 | Series A | $11.4M | Removes atmospheric CO2 through ocean alkalinity enhancement while counteracting ocean acidification. | North America | Evok Innovations |
| Adden Energy | Low Carbon Mobility | October 2024 | Series A | $15M | Develops fast-charging solid-state batteries aimed primarily at electric vehicles. | North America | At One Ventures |
| Autarkize | Industrial Climate Tech | October 2024 | Seed | ≈$2,500,000 | Converts biogenic residues into renewable gas, industrial heat and carbon-storing biochar. | Europe | HTGF |
| BasiGo | Low Carbon Mobility | October 2024 | Series A | $24M | Supplies electric buses, charging infrastructure and pay-as-you-drive financing for African bus operators. | Africa | Africa50 |
| CaliCat | Clean Energy Systems | October 2024 | Series A | $3M | Develops low-iridium and iridium-free catalyst components for green-hydrogen PEM electrolyzers. | North America | Not disclosed |
| Dunia | Industrial Climate Tech | October 2024 | Unknown | $11.5M | Uses AI and autonomous laboratories to discover electrocatalysts for green hydrogen, ammonia and low-carbon chemicals. | Europe | Elaia; redalpine |
| Matteco | Clean Energy Systems | October 2024 | Series A | ≈$16,300,000 | Manufactures catalyst and electrode materials that improve green-hydrogen electrolyzer performance. | Europe | Not disclosed |
| measurable.energy | Building Decarbonization Tech | October 2024 | Series A | ≈$5,200,000 | Uses smart sockets and software to automatically reduce wasted plug-load electricity in buildings. | Europe | Vertex Exploratory Fund; Clean Growth Fund |
| MobilityPlus | Low Carbon Mobility | October 2024 | Growth Equity | ≈$43,600,000 | Operates managed EV-charging infrastructure, charging services and smart energy management for businesses. | Europe | Not disclosed |
| mondas | Clean Energy Systems | October 2024 | Series A | ≈$4,900,000 | Optimizes photovoltaic, CHP, heating and district-energy assets through operational analytics software. | Europe | badenova AG & Co. |
| Redaptive | Building Decarbonization Tech | October 2024 | Growth Equity | $100M | Finances and deploys energy-efficiency, metering and electrification upgrades for commercial and industrial buildings. | North America | Not disclosed |
| Turnover Labs | Industrial Climate Tech | October 2024 | Seed | $1.4M | Uses electrochemistry to convert captured CO2 into chemicals that replace fossil-derived feedstocks. | North America | Pace Ventures; GC Ventures |
| UniFuel | Low Carbon Mobility | October 2024 | Seed | $3M | Converts renewable feedstocks into lower-cost sustainable aviation fuel using its Flexiforming process. | North America | TO VC |
| Nevoya | Low Carbon Mobility | October 2024 | Seed | $3M | Operates an electric heavy-duty freight fleet supported by software for vehicle and charging optimization. | North America | Third Sphere; RedBlue Capital |
| PIONIERKRAFT | Clean Energy Systems | October 2024 | Series A | Not Disclosed | Enables apartment buildings to share locally generated rooftop-solar electricity among tenants. | Europe | First Imagine! |
| OOYOO | Industrial Climate Tech | October 2024 | Seed | $3.1M | Develops high-selectivity membrane systems for lower-cost industrial CO2 capture and separation. | Asia-Pacific | Kyoto University Innovation Capital |
| Iron Fuel Technology | Industrial Climate Tech | October 2024 | Series A | ≈$12,000,000 | Uses recyclable iron powder as a carbon-free fuel for high-temperature industrial heat. | Europe | Not disclosed |
| Roofsol | Clean Energy Systems | October 2024 | Growth Equity | ≈$3,030,000 | Develops, finances, installs and operates commercial and industrial solar systems. | Asia-Pacific | Not disclosed |
| Survoltage | Clean Energy Systems | October 2024 | Unknown | ≈$820,000 | Controls household and commercial electricity loads to shift consumption toward lower-cost, lower-carbon periods. | Europe | Not disclosed |
| terralayr | Clean Energy Systems | October 2024 | Unknown | ≈$67,600,000 | Owns, aggregates and digitally dispatches grid-scale battery-storage capacity. | Europe | Not disclosed |
| TheStorage | Industrial Climate Tech | October 2024 | Seed | ≈$1,090,000 | Stores renewable electricity as high-temperature heat in sand for industrial process heat and steam. | Europe | 2C Ventures |
| 1s1 Energy | Clean Energy Systems | October 2024 | Seed | $1.4M | Develops materials and electrolyzer technologies aimed at lowering the cost of green hydrogen. | North America | Faber; Asiri LLC |
| Aira | Building Decarbonization Tech | October 2024 | Series B | ≈$68,700,000 | Supplies and installs residential heat pumps and related home-electrification systems. | Europe | Not disclosed |
| CorPower Ocean | Clean Energy Systems | October 2024 | Series B | ≈$34,900,000 | Develops wave-energy converters that generate renewable electricity from ocean waves. | Europe | NordicNinja VC; SEB Greentech; EIT InnoEnergy |
| King Energy | Clean Energy Systems | October 2024 | Seed | $10M | Finances, installs and bills solar power for multi-tenant commercial properties. | North America | ArcTern Ventures |
| Octavia Carbon | Carbon Removal Platforms | October 2024 | Seed | $3.9M | Removes atmospheric CO2 using direct-air capture and stores it through geological mineralization. | Africa | Lateral Frontiers; E4E Africa |
| Treehouse | Building Decarbonization Tech | October 2024 | Series A | $16.6M | Automates and installs residential and fleet electrification projects including EV charging and electrical upgrades. | North America | Flourish Ventures |
| X-energy | Clean Energy Systems | October 2024 | Series C | ≈$500,000,000 | Develops small modular nuclear reactors and TRISO nuclear fuel for carbon-free electricity and industrial heat. | North America | Not disclosed |
| EnviCore | Industrial Climate Tech | October 2024 | Seed | ≈$3,100,000 | Produces low-carbon supplementary cementitious materials from recycled mineral feedstocks. | North America | Not disclosed |
| Equilibrium Energy | Clean Energy Systems | October 2024 | Series B | $39M | Optimizes and trades battery storage and clean-power assets in wholesale electricity markets. | North America | DCVC |
| Green Gravity | Clean Energy Systems | October 2024 | Series A | ≈$6,000,000 | Builds gravity-based long-duration energy storage in disused mine shafts. | Asia-Pacific | BlueScopeX |
| Grid Africa | Clean Energy Systems | October 2024 | Unknown | ≈$2,800,000 | Develops distributed solar and hybrid renewable-energy systems for commercial and industrial customers. | Africa | Not disclosed |
| Liminal | Low Carbon Mobility | October 2024 | Unknown | $10M | Provides battery-manufacturing inspection and intelligence systems for EV and clean-energy cells. | North America | Not disclosed |
| Nomos Energy | Clean Energy Systems | October 2024 | Seed | $2.1M | Provides an electricity-management API connecting dynamic power tariffs with EVs, heat pumps and solar assets. | Europe | Speedinvest |
| OroraTech | Climate Adaptation Solutions | October 2024 | Series B | ≈$27,200,000 | Uses thermal-imaging satellites and AI to detect, track and predict wildfires. | Europe | Korys; European Circular Bioeconomy Fund; Bayern Kapital |
| Power Roll | Clean Energy Systems | October 2024 | Unknown | ≈$5,600,000 | Develops lightweight flexible thin-film photovoltaic modules for low-cost solar generation. | Europe | Not disclosed |
| REsurety | Clean Energy Systems | October 2024 | Series C | $32M | Provides software, analytics and transaction infrastructure for clean-power buyers, sellers and investors. | North America | S2G Ventures; Citi |
| Aerleum | Industrial Climate Tech | October 2024 | Seed | $6M | Integrates CO2 capture and conversion to produce low-carbon synthetic fuels and chemicals. | Europe | 360 Capital; HTGF |
| Concretene | Industrial Climate Tech | October 2024 | Seed | ≈$3,900,000 | Develops graphene-enhanced concrete admixtures that reduce cement requirements and embodied emissions. | Europe | Molten Ventures; LocalGlobe |
| Bacta | Industrial Climate Tech | October 2024 | Seed | ≈$3,600,000 | Uses engineered microbes to make low-carbon natural-rubber alternatives through biosynthesis. | Europe | OVNI Capital |
| Carbogenics | Industrial Climate Tech | October 2024 | Unknown | ≈$640,000 | Converts difficult organic waste into carbon-rich biochar used to improve anaerobic digestion and wastewater treatment. | Europe | Not disclosed |
| Scope3 | Industrial Climate Tech | October 2024 | Unknown | $25M | Measures and reduces emissions from digital advertising, media and AI infrastructure. | North America | GV |
| Altris | Clean Energy Systems | October 2024 | Series B | ≈$14,500,000 | Develops sodium-ion battery cathode materials and cell technology for stationary and mobility applications. | Europe | Not disclosed |
| Form Energy | Clean Energy Systems | October 2024 | Series D+ | $405M | Makes iron-air batteries designed to store renewable electricity for multiple days. | North America | T. Rowe Price |
| Paebbl | Carbon Removal Platforms | October 2024 | Series A | $25M | Mineralizes captured CO2 into durable carbon-storing construction materials. | Europe | Capnamic |
| Airloom Energy | Clean Energy Systems | October 2024 | Seed | $7.5M | Develops compact wind-turbine systems designed to reduce the cost and material intensity of wind power. | North America | Lowercarbon Capital |
| Blue Energy | Clean Energy Systems | October 2024 | Series A | $45M | Develops modular nuclear power plants using shipyard manufacturing to lower construction cost and time. | North America | Engine Ventures; At One Ventures |
| Irasus | Clean Energy Systems | October 2024 | Seed | >$475,000 | Provides battery intelligence and analytics for EV and stationary energy-storage systems. | Asia-Pacific | IAN Group |
| Synergi | Clean Energy Systems | October 2024 | Seed | ≈$2,200,000 | Aggregates home energy assets such as EV chargers and heat pumps into virtual power plants. | Europe | Greencode Ventures |
| Carbon Neutral Fuels | Low Carbon Mobility | October 2024 | Unknown | ≈$1,300,000 | Develops synthetic sustainable aviation fuel produced from captured carbon and renewable energy. | Europe | Not disclosed |
| Heliene | Clean Energy Systems | October 2024 | Growth Equity | Up To $54,000,000 | Manufactures photovoltaic modules for utility and distributed solar projects. | North America | Transition Equity Partners |
| Purpose Green | Building Decarbonization Tech | October 2024 | Seed | $15M | Plans, finances and executes energy retrofits that decarbonize existing buildings. | Europe | Fifth Wall |
| Voltfang | Clean Energy Systems | October 2024 | Series A | >$7,600,000 | Builds stationary battery-storage systems using second-life and surplus EV batteries. | Europe | FORWARD.one |
| Ekolution | Building Decarbonization Tech | October 2024 | Unknown | ≈$2,400,000 | Produces hemp-based insulation and construction materials designed to reduce building embodied carbon. | Europe | Not disclosed |
| Green Genius | Clean Energy Systems | October 2024 | Growth Equity | Up To ≈$109,000,000 | Develops, builds and operates solar, wind and energy-storage projects. | Europe | Not disclosed |
| Paren | Low Carbon Mobility | October 2024 | Seed | $3M | Provides EV-charging data and reliability intelligence for operators, automakers and charging applications. | North America | Base10 Partners |
| Qovoltis | Low Carbon Mobility | October 2024 | Series B | ≈$49,100,000 | Builds and operates smart charging infrastructure for electric vehicles. | Europe | Not disclosed |
| SuperNode | Clean Energy Systems | October 2024 | Unknown | ≈$8,700,000 | Develops superconducting electricity-transmission cables for high-capacity renewable-power grids. | Europe | Not disclosed |
| Anaphite | Low Carbon Mobility | October 2024 | Series A | ≈$13,500,000 | Develops dry-electrode manufacturing technology designed to cut EV-battery production energy and cost. | Europe | World Fund; Maniv |
| Mysa | Building Decarbonization Tech | October 2024 | Series B | ≈$8,100,000 | Makes smart thermostats that optimize electric heating and cooling and support grid flexibility. | North America | Climate Innovation Capital |
| Neutreeno | Industrial Climate Tech | October 2024 | Seed | $5M | Models industrial supply-chain emissions and identifies interventions to reduce Scope 3 carbon. | Europe | Regeneration.VC |
| SUN METALON | Industrial Climate Tech | October 2024 | Series A | $17.7M | Develops zero-fossil-fuel metal-heating and recycling systems for lower-carbon metal manufacturing. | North America | Not disclosed |
| Acceleron Fusion | Clean Energy Systems | October 2024 | Unknown | $15M | Develops muon-catalyzed fusion systems intended to produce carbon-free energy. | North America | Not disclosed |
| Cool Planet Technologies | Industrial Climate Tech | October 2024 | Series A | ≈$25,800,000 | Develops low-energy membrane systems for capturing CO2 from industrial exhaust streams. | Europe | Taranis Carbon Ventures |
| Polarium | Clean Energy Systems | October 2024 | Growth Equity | ≈$48,000,000 | Makes lithium-ion battery energy-storage systems for telecom, commercial and grid applications. | Europe | Not disclosed |
| Anaphite | Low Carbon Mobility | September 2024 | Series A | $13.7M | Develops dry-coating precursor materials and processes designed to reduce the energy and cost of EV battery manufacturing. | Europe | World Fund; Maniv |
| Utility Global | Industrial Climate Tech | September 2024 | Series C | $53M | Develops reactors that convert industrial off-gases into hydrogen while producing concentrated CO2 streams for capture. | North America | OPG Pension Plan |
| Dandelion Energy | Building Decarbonization Tech | September 2024 | Series C | $40M | Designs and installs residential geothermal heat-pump systems that replace fossil-fuel heating and conventional cooling. | North America | GV |
| Cariqa | Low Carbon Mobility | September 2024 | Seed | ≈$1,100,000 | Operates a marketplace connecting EV drivers directly with charge-point operators for transparent and dynamic charging prices. | Europe | Not disclosed |
| David Energy | Clean Energy Systems | September 2024 | Series A | $23M | Operates a software-enabled clean-electricity retailer that coordinates distributed batteries, solar and EV loads with the power grid. | North America | Cathay Innovation |
| DeepDrive | Low Carbon Mobility | September 2024 | Series B | ≈$33,500,000 | Develops high-efficiency dual-rotor electric motors intended to increase EV range and reduce powertrain cost. | Europe | Leitmotif |
| Hgen | Industrial Climate Tech | September 2024 | Seed | $5M | Develops high-power-density alkaline electrolyzers for producing clean hydrogen and oxygen for heavy industrial processes. | North America | Seven Seven Six |
| Phlair | Carbon Removal Platforms | September 2024 | Seed | ≈$13,400,000 | Develops hydrolyzer-based direct-air-capture systems for removing CO2 from ambient air using flexible renewable electricity. | Europe | Extantia Capital |
| Twelve | Industrial Climate Tech | September 2024 | Series C | ≈$200,000,000 | Uses electrochemistry to convert captured CO2 into sustainable aviation fuel and low-carbon chemicals. | North America | TPG |
| AIR COMPANY | Low Carbon Mobility | September 2024 | Series B | $69M | Converts captured CO2 into sustainable aviation fuel and other low-carbon chemicals using its carbon-conversion process. | North America | Avfuel |
| CarbonEthics | Carbon Removal Platforms | September 2024 | Seed | $2.1M | Develops tech-enabled blue-carbon, peatland and forest restoration projects designed to generate measurable climate mitigation. | Asia-Pacific | Intudo Ventures |
| Voltfang | Clean Energy Systems | September 2024 | Series A | >≈$7,800,000 | Builds commercial and grid-scale energy-storage systems using repurposed electric-vehicle batteries. | Europe | FORWARD.one |
| Battolyser Systems | Clean Energy Systems | September 2024 | Series A | ≈$16,600,000 | Develops integrated alkaline electrolyzer-battery systems for flexible green-hydrogen production from intermittent renewable power. | Europe | Not disclosed |
| Bling Energy | Clean Energy Systems | September 2024 | Seed | ≈$2,200,000 | Provides subscription-based distributed solar installations designed to remove upfront costs for customers. | Europe | Joaquim Sérvulo Rodrigues; José de Mello family members |
| Brineworks | Industrial Climate Tech | September 2024 | Unknown | ≈$2,200,000 | Develops seawater electrolysis technology to extract CO2 and hydrogen as low-carbon feedstocks for e-fuels. | Europe | Pale Blue Dot |
| Circe Bioscience | Industrial Climate Tech | September 2024 | Seed | $5M | Uses gas fermentation to manufacture carbon-negative oils and other industrial molecules from carbon-containing gases. | North America | Not disclosed |
| Exergy3 | Industrial Climate Tech | September 2024 | Seed | ≈$1,310,000 | Builds ultra-high-temperature thermal-energy-storage systems that convert renewable electricity into industrial process heat. | Europe | Zero Carbon Capital |
| Symbiobe | Industrial Climate Tech | September 2024 | Series A | ≈$5,600,000 | Uses marine photosynthetic bacteria to fix industrial CO2 and nitrogen and convert them into lower-carbon materials and agricultural inputs. | Asia-Pacific | Not disclosed |
| ZeroAvia | Low Carbon Mobility | September 2024 | Series C | $34M | Develops hydrogen-electric propulsion systems intended to eliminate operational emissions from commercial aircraft. | North America | Not disclosed |
| OpConnect | Low Carbon Mobility | September 2024 | Unknown | $5.3M | Provides EV-charging hardware, installation and network-management software for fleets and multifamily properties. | North America | The 22 Fund |
| PowerX | Clean Energy Systems | September 2024 | Series C | ≈$17,300,000 | Develops and manufactures large-scale battery storage systems, EV chargers and related electrification technology. | Asia-Pacific | Not disclosed |
| Clean Electric | Low Carbon Mobility | September 2024 | Series A | $6M | Develops fast-charging battery packs and energy-storage technology with a primary focus on electric vehicles. | Asia-Pacific | Info Edge Ventures; pi Ventures; Kalaari Capital |
| Number 8 Bio | Industrial Climate Tech | September 2024 | Seed | ≈$4,640,000 | Develops livestock feed additives designed to sharply reduce enteric methane emissions from cattle and other ruminants. | Asia-Pacific | Main Sequence |
| 24M Technologies | Clean Energy Systems | September 2024 | Series D+ | $87M | Develops semi-solid lithium-ion battery manufacturing technology for electric mobility and stationary energy storage. | North America | Nuovo Plus |
| Entalpic | Industrial Climate Tech | September 2024 | Seed | ≈$9,400,000 | Uses generative AI to discover materials and catalysts intended to decarbonize industrial chemistry. | Europe | Breega; Cathay Innovation; Felicis |
| Mantel | Industrial Climate Tech | September 2024 | Series A | $30M | Develops high-temperature molten-borate carbon-capture systems for heavy industrial facilities. | North America | Shell Ventures; Eni Next |
| Reonic | Clean Energy Systems | September 2024 | Series A | ≈$14,400,000 | Provides software for installers to plan, sell and deploy solar, heat-pump, storage and other distributed-energy systems. | Europe | Northzone |
| Carbyon | Carbon Removal Platforms | September 2024 | Series A | ≈$16,900,000 | Develops fast-swing direct-air-capture systems designed to remove atmospheric CO2 at lower energy and equipment cost. | Europe | Not disclosed |
| Citroniq | Industrial Climate Tech | September 2024 | Series A | $12M | Develops low-carbon and carbon-negative polypropylene production using bio-based ethanol and carbon-management technology. | North America | Not disclosed |
| Renewable Metals | Industrial Climate Tech | September 2024 | Seed | ≈$5,500,000 | Develops an alkali-based process for recovering critical minerals from end-of-life lithium-ion batteries. | Asia-Pacific | Not disclosed |
| Last Energy | Clean Energy Systems | August 2024 | Series B | $40M | Develops modular micro-scale nuclear power plants based on pressurized-water reactor technology. | North America | Gigafund |
| Sunswap | Low Carbon Mobility | August 2024 | Series B | ≈$22,800,000 | Develops battery-electric transport-refrigeration systems that replace diesel-powered refrigeration units on trucks and trailers. | Europe | BGF |
| Calectra | Industrial Climate Tech | August 2024 | Seed | $1.6M | Develops thermal-energy-storage technology that converts electricity into high-temperature industrial process heat. | North America | Lifeline Ventures |
| Deep Fission | Clean Energy Systems | August 2024 | Seed | $4M | Develops small nuclear reactors designed for installation deep underground in boreholes. | North America | 8VC |
| Grid Status | Clean Energy Systems | August 2024 | Unknown | $8M | Provides real-time and historical electricity-grid data and analytics for power-market participants. | North America | Energize Capital |
| Optiml | Building Decarbonization Tech | August 2024 | Seed | $4M | Provides software for real-estate owners to plan building renovations and investment pathways toward net-zero emissions. | Europe | BitStone Capital |
| UP Catalyst | Industrial Climate Tech | August 2024 | Seed | ≈$2,600,000 | Converts captured CO2 into carbon materials used as battery and advanced-material feedstocks. | Europe | Not disclosed |
| Fortera | Industrial Climate Tech | August 2024 | Series C | $85M | Develops technology for manufacturing low-carbon cement by mineralizing CO2 within cement production. | North America | Not disclosed |
| Power to Hydrogen | Clean Energy Systems | August 2024 | Series A | >$28,000,000 | Develops high-efficiency electrolyzers for producing clean hydrogen from renewable electricity. | North America | Rev1 Ventures; Worthington Enterprises |
| Root Global | Industrial Climate Tech | August 2024 | Seed | ≈$2,800,000 | Provides software for food and agriculture companies to measure supply-chain emissions and implement decarbonization measures. | Europe | Point Nine |
| DRIFT Energy | Clean Energy Systems | August 2024 | Seed | ≈$2,000,000 | Develops wind-powered sailing vessels that generate green hydrogen at sea. | Europe | Octopus Ventures |
| Intramotev | Low Carbon Mobility | August 2024 | Series A | $14.4M | Develops battery-electric autonomous railcars and retrofit systems to decarbonize freight rail. | North America | Flybridge Capital Partners; Alpaca VC |
| Aalo Atomics | Clean Energy Systems | August 2024 | Series A | $27M | Develops factory-manufactured small nuclear fission reactors for low-carbon electricity and heat. | North America | 50Y; Valor Equity Partners |
| Flower | Clean Energy Systems | August 2024 | Series A | ≈$27,500,000 | Aggregates batteries and other flexible energy assets to optimize electricity markets and provide grid-balancing services. | Europe | Northzone |
| Clearly | Low Carbon Mobility | August 2024 | Seed | $4.3M | Provides AI-driven emissions intelligence that helps transport fleets measure and reduce energy use and CO2 emissions. | Europe | Pace Ventures; Nine Realms |
| Fresh Bus | Low Carbon Mobility | August 2024 | Series A | $10.5M | Operates an all-electric intercity bus network in India. | Asia-Pacific | Maniv |
| Florrent | Clean Energy Systems | August 2024 | Seed | $3.6M | Develops plant-derived activated-carbon materials for high-performance supercapacitors used in grid and electrification applications. | North America | MassVentures |
| Gaussion | Clean Energy Systems | August 2024 | Series A | $12M | Develops magnetic-field technology that accelerates lithium-ion battery charging while limiting degradation. | Europe | Autotech Ventures |
| Open Access Energy | Clean Energy Systems | August 2024 | Seed | $750K | Provides software for renewable-electricity wheeling, energy transactions and grid-energy management. | Africa | Not disclosed |
| Cocoon Carbon | Industrial Climate Tech | August 2024 | Seed | $5.4M | Converts electric-arc-furnace steel slag into a low-carbon cement substitute for concrete production. | Europe | Not disclosed |
| SYSO Technologies | Clean Energy Systems | August 2024 | Series B | $14.5M | Operates and optimizes renewable-generation and battery-storage assets in wholesale power markets. | North America | Kimmeridge |
| Branch Energy | Clean Energy Systems | August 2024 | Series A | $10.8M | Supplies clean electricity and uses software, distributed batteries and demand management to reduce grid costs and emissions. | North America | Prelude Ventures |
| Cala Systems | Building Decarbonization Tech | August 2024 | Seed | $5.6M | Develops intelligent heat-pump water heaters that optimize household hot-water heating for energy and emissions reduction. | North America | Massachusetts Clean Energy Center; Clean Energy Venture Group |
| Climatize | Clean Energy Systems | August 2024 | Seed | $1.8M | Operates an investment platform that channels retail capital directly into renewable-energy projects. | North America | Myriad Venture Partners |
| Axle Energy | Clean Energy Systems | August 2024 | Seed | $9M | Provides software connecting EVs, batteries, heat pumps and other flexible energy assets to electricity markets for grid balancing. | Europe | Accel |
| Sora Fuel | Low Carbon Mobility | August 2024 | Seed | $6M | Develops sustainable aviation fuel from atmospheric CO2, water and renewable electricity. | North America | The Engine Ventures |
| TerraWave Energy | Clean Energy Systems | August 2024 | Seed | $3.9M | Develops geothermal-energy technology intended to expand economically accessible geothermal power resources. | Middle East | Square One Labs |
| Applied Carbon | Carbon Removal Platforms | July 2024 | Series A | $21.5M | Builds mobile pyrolysis machines that convert crop residues into durable biochar directly on farms. | North America | TO VC |
| Amperecloud | Clean Energy Systems | July 2024 | Series A | ≈$3,570,000 | Provides software and hardware for monitoring, controlling and operating renewable-power and battery-storage portfolios. | Europe | Encevo |
| Graphyte | Carbon Removal Platforms | July 2024 | Series A | $30M | Permanently removes atmospheric carbon by drying, compacting and storing carbon-rich biomass underground. | North America | Prelude Ventures; Carbon Direct Capital |
| Type One Energy | Clean Energy Systems | July 2024 | Seed | $53.5M | Develops stellarator-based nuclear-fusion systems for commercial zero-carbon electricity generation. | North America | Breakthrough Energy Ventures |
| Greenely | Clean Energy Systems | July 2024 | Series A | ≈$8,700,000 | Operates a home-energy-management and virtual-power-plant platform connecting flexible household energy assets. | Europe | Korys |
| Addionics | Low Carbon Mobility | July 2024 | Series B | $39M | Manufactures 3D battery current collectors designed to improve EV battery performance and manufacturing economics. | Europe | GM Ventures; Deep Insight |
| Renewabl | Clean Energy Systems | July 2024 | Seed | Not Disclosed | Provides software for traceable, hourly matched renewable-electricity procurement and clean-energy certificates. | Europe | Helen Ventures |
| Splight | Clean Energy Systems | July 2024 | Seed | $12M | Uses AI-driven grid-control software to increase transmission utilization and reduce renewable-energy curtailment. | North America | noa |
| Cowboy Clean Fuels | Clean Energy Systems | July 2024 | Series B | ≈$13,000,000 | Produces carbon-negative renewable natural gas while permanently sequestering biogenic CO2 in geologic formations. | North America | Machan Investments |
| Marathon Fusion | Clean Energy Systems | July 2024 | Seed | $5.9M | Develops high-throughput fuel-processing systems required for commercial fusion power plants. | North America | 1517 Fund; Anglo American |
| Again | Industrial Climate Tech | July 2024 | Series A | $43M | Ferments captured industrial CO2 into low-carbon chemicals that replace fossil-derived chemical feedstocks. | Europe | GV; HV Capital |
| Earthshot Labs | Carbon Removal Platforms | July 2024 | Series A | $5.5M | Provides software, ecological analytics and project-development infrastructure for nature-based carbon projects. | North America | Acorn Pacific Ventures |
| ECO2GROW | Clean Energy Systems | July 2024 | Seed | ≈$4,340,000 | Aggregates SME electricity demand so businesses can procure renewable power directly through virtual PPAs. | Europe | Not disclosed |
| Quatt | Building Decarbonization Tech | July 2024 | Growth Equity | ≈$27,200,000 | Designs and sells smart heat-pump systems for replacing fossil-fuel residential heating. | Europe | Blue Earth Capital |
| Rhizome | Climate Adaptation Solutions | July 2024 | Unknown | $1M | Provides climate-resilience planning software for electric utilities, including wildfire-risk mitigation. | North America | Convective Capital |
| Heimdall Power | Clean Energy Systems | July 2024 | Series B | $25M | Supplies grid sensors and software that increase the usable transmission capacity of existing power lines. | Europe | ORLEN; NRP Zero; Steinsvik Family Office |
| NovoNutrients | Industrial Climate Tech | July 2024 | Series A | $10.3M | Uses microbes to convert industrial CO2 and hydrogen into protein ingredients. | North America | Woodside Energy; CM Venture Capital |
| 44.01 | Carbon Removal Platforms | July 2024 | Series A | $37M | Permanently stores captured CO2 by accelerating its mineralisation in reactive rock formations. | Middle East | Equinor Ventures; Shorooq Partners |
| Naked Energy | Building Decarbonization Tech | July 2024 | Series B | ≈$21,900,000 | Manufactures high-efficiency solar-thermal and hybrid solar collectors for low-carbon heat and electricity. | Europe | E.ON Energy Infrastructure Solutions |
| Equinox Ocean Turbines | Clean Energy Systems | July 2024 | Seed | ≈$2,600,000 | Develops two-stage turbines designed to generate renewable electricity from ocean currents. | Europe | EIT InnoEnergy |
| Dynelectro | Clean Energy Systems | July 2024 | Unknown | ≈$11,900,000 | Develops dynamically operated solid-oxide electrolysers for efficient renewable-hydrogen production. | Europe | Not disclosed |
| GIGA | Clean Energy Systems | July 2024 | Growth Equity | ≈$27,200,000 | Develops, finances and operates commercial solar, battery-storage and charging systems. | Europe | Ichigo Inc. |
| Kolum | Industrial Climate Tech | July 2024 | Seed | ≈$2,280,000 | Provides software for managing EU carbon-border pricing and emissions compliance in international trade. | Europe | FoodLabs |
| NLine Energy | Industrial Climate Tech | July 2024 | Growth Equity | $11M | Converts otherwise-wasted pressure and thermal energy in industrial steam systems into on-site renewable electricity. | North America | Mirova |
| KC8 Capture Technologies | Industrial Climate Tech | July 2024 | Unknown | ≈$6,750,000 | Develops solvent-based post-combustion CO2 capture systems for cement, steel, power and chemical facilities. | Asia-Pacific | Woodside Energy; Cemex Ventures |
| Orus Energy | Clean Energy Systems | July 2024 | Seed | ≈$2,390,000 | Provides demand-side flexibility software that shifts commercial-building electricity use to support renewable-heavy power grids. | Europe | b2venture; Asterion Ventures |
| Libattion | Clean Energy Systems | June 2024 | Growth Equity | $15M | Builds stationary energy-storage systems by repurposing used electric-vehicle batteries for second-life applications. | Europe | A&G Energy Transition Tech Fund |
| Li Industries | Industrial Climate Tech | June 2024 | Series B | $6M | Develops direct lithium-ion battery recycling processes that recover battery-grade materials, including from LFP batteries. | North America | Not disclosed |
| Samsara Eco | Industrial Climate Tech | June 2024 | Series A | $65M | Uses engineered enzymes to break plastics and textiles into reusable feedstocks for circular manufacturing. | Asia-Pacific | Temasek; Main Sequence |
| Sila | Low Carbon Mobility | June 2024 | Series D+ | $375M | Manufactures silicon-dominant anode materials designed to increase energy density and charging performance of EV batteries. | North America | Sutter Hill Ventures; T. Rowe Price Associates |
| Vertus Energy | Clean Energy Systems | June 2024 | Seed | $9.4M | Develops biotechnology that accelerates anaerobic digestion and increases renewable biomethane production from waste. | Europe | Energy Capital Ventures |
| Climate X | Climate Adaptation Solutions | June 2024 | Series A | $18M | Models physical climate hazards and their financial impact on buildings, infrastructure and investment portfolios. | Europe | GV |
| Sirona Technologies | Carbon Removal Platforms | June 2024 | Seed | $6.4M | Develops modular direct-air-capture systems designed to remove CO₂ from ambient air at scale. | Europe | LocalGlobe; XAnge |
| Neustark | Carbon Removal Platforms | June 2024 | Growth Equity | $69M | Permanently stores captured biogenic CO₂ in demolished concrete and other mineral waste through accelerated mineralization. | Europe | Decarbonization Partners |
| Travertine | Industrial Climate Tech | June 2024 | Unknown | $8.5M | Uses electrochemistry to eliminate sulfate waste while producing chemicals and mineral products that can permanently bind CO₂. | North America | Holcim MAQER Ventures |
| WattAnyWhere | Clean Energy Systems | June 2024 | Seed | $2.5M | Develops renewable off-grid power generators designed to supply clean electricity where grid connections are constrained. | Europe | Not disclosed |
| Doral Renewables | Clean Energy Systems | June 2024 | Growth Equity | $400M | Develops, owns and operates utility-scale solar and energy-storage projects across the United States. | North America | APG |
| Net Zero Company | Carbon Removal Platforms | June 2024 | Seed | $5.5M | Provides blockchain-backed access to verified carbon-removal assets and retirement of corresponding removal credits. | Europe | Not disclosed |
| Aikido Technologies | Clean Energy Systems | June 2024 | Seed | $4M | Develops modular floating foundations intended to reduce the cost and manufacturing complexity of offshore wind projects. | North America | Azolla Ventures |
| atmio | Industrial Climate Tech | June 2024 | Seed | $5.5M | Combines methane measurement hardware and software to detect, quantify and document emissions from natural-gas infrastructure. | Europe | Notion Capital; SquareOne |
| M2X Energy | Industrial Climate Tech | June 2024 | Series B | $40M | Builds modular systems that convert stranded and waste methane into lower-carbon methanol instead of venting or flaring it. | North America | Conifer Infrastructure Partners |
| Materrup | Industrial Climate Tech | June 2024 | Growth Equity | $27.8M | Produces low-carbon cement using locally sourced uncalcined clay to reduce emissions from conventional clinker production. | Europe | Not disclosed |
| Molten Industries | Industrial Climate Tech | June 2024 | Series A | $25M | Uses methane pyrolysis to produce low-carbon hydrogen and graphite for heavy industry and battery supply chains. | North America | Breakthrough Energy Ventures |
| LD Carbon | Industrial Climate Tech | June 2024 | Series C | $28M | Recycles end-of-life tires into recovered carbon black and pyrolysis oil, replacing virgin industrial materials. | Asia-Pacific | Woven Capital |
| Sesame Sustainability | Industrial Climate Tech | June 2024 | Seed | $2.4M | Provides software for modelling, optimizing and comparing industrial decarbonization and energy-transition pathways. | North America | Flybridge; Powerhouse Ventures |
| Echion Technologies | Clean Energy Systems | June 2024 | Series B | $36.8M | Develops niobium-based lithium-ion battery anode materials enabling fast charging and long cycle life for electrified equipment. | Europe | Volta Energy Technologies |
| Aepnus | Industrial Climate Tech | June 2024 | Seed | $8M | Develops electrochemical systems that recycle sodium-sulfate waste from battery-material production into reusable chemicals. | North America | Clean Energy Ventures |
| MIRICO | Industrial Climate Tech | June 2024 | Unknown | $2M | Provides laser-based continuous methane detection and quantification systems for industrial and energy facilities. | Europe | Shell Ventures; New Climate Ventures |
| Swift Solar | Clean Energy Systems | June 2024 | Series A | $27M | Develops and manufactures perovskite-based tandem photovoltaic technology for higher-efficiency solar power generation. | North America | Eni Next; Fontinalis Partners |
| Battery Smart | Low Carbon Mobility | June 2024 | Series B | $65M | Operates a battery-swapping network for electric two- and three-wheelers in India. | Asia-Pacific | LeapFrog Investments |
| VoltShare | Low Carbon Mobility | June 2024 | Seed | $635K | Provides EV charging hardware and software for hospitality and destination-charging locations. | Europe | SFC Capital |
| Fuuse | Low Carbon Mobility | June 2024 | Series A | $11.1M | Provides software for managing EV charging infrastructure across fleets, workplaces, destinations and charge-point operators. | Europe | YFM Equity Partners |
| Mitiga Solutions | Climate Adaptation Solutions | June 2024 | Series A | $8.6M | Provides climate-risk analytics that quantify physical hazards to assets and portfolios under changing climate scenarios. | Europe | Elaia |
| SiTration | Industrial Climate Tech | June 2024 | Seed | $11.8M | Uses membrane-based separation technology to recover critical metals from mining and battery-recycling process streams. | North America | 2150 |
| Decade Energy | Low Carbon Mobility | June 2024 | Seed | $3.9M | Provides fleet electrification and depot-energy services that help logistics operators replace diesel vehicles with electric fleets. | Europe | Ananda Impact Ventures; Contrarian Ventures |
| Xcimer Energy | Clean Energy Systems | June 2024 | Series A | $100M | Develops high-energy laser systems for inertial-fusion power plants intended to generate carbon-free electricity. | North America | Hedosophia |
| ecoLocked | Building Decarbonization Tech | June 2024 | Seed | $4.3M | Produces carbon-negative concrete additives using biochar to lower embodied construction emissions and permanently store carbon. | Europe | Matterwave Ventures; Climentum Capital |
| Gireve | Low Carbon Mobility | June 2024 | Growth Equity | $21.4M | Operates interoperability, roaming and transaction infrastructure connecting EV charging networks and mobility providers. | Europe | Not disclosed |
| iyris | Climate Adaptation Solutions | June 2024 | Series A | $16M | Develops heat-blocking materials for greenhouses that reduce heat stress, cooling demand and water consumption in hot climates. | Middle East | Ecosystem Integrity Fund |
| Plural Energy | Clean Energy Systems | May 2024 | Seed | $2.3M | Provides an on-chain investment platform for financing renewable-energy projects. | North America | Necessary Ventures; Compound |
| Seqana | Carbon Removal Platforms | May 2024 | Seed | ≈$2,300,000 | Uses satellite imagery and machine learning to measure soil-carbon changes for carbon-farming and removal projects. | Europe | HTGF; Counteract |
| Relectrify | Clean Energy Systems | May 2024 | Unknown | ≈$11,300,000 | Develops cell-level battery-control electronics and software that improve the economics, life and safety of energy-storage systems. | Asia-Pacific | At One Ventures |
| Delta Green | Clean Energy Systems | May 2024 | Unknown | ≈$2,400,000 | Aggregates flexible household electricity assets to balance grids and enable larger shares of renewable generation. | Europe | Tilia Impact Ventures |
| Syre | Industrial Climate Tech | May 2024 | Series A | $100M | Chemically recycles polyester textiles into circular polyester intended to replace emissions-intensive virgin material. | Europe | TPG Rise Climate |
| ThinkLabs | Clean Energy Systems | May 2024 | Seed | $5M | Develops AI-based grid intelligence for planning and operating electricity networks during the energy transition. | North America | Powerhouse Ventures; Active Impact Investments |
| Aeromine Technologies | Clean Energy Systems | May 2024 | Series A | ≈$9,000,000 | Develops motionless rooftop wind-energy systems for distributed renewable electricity generation on commercial buildings. | North America | Veriten |
| Reactive Technologies | Clean Energy Systems | May 2024 | Series D+ | ≈$31,800,000 | Provides real-time grid-stability measurement technology that helps power systems integrate greater shares of renewable generation. | Europe | M&G Catalyst |
| i2Cool | Building Decarbonization Tech | May 2024 | Series A | ≈$12,800,000 | Develops passive radiative-cooling coatings and materials that reduce building cooling-energy demand without electricity. | Asia-Pacific | Not disclosed |
| cylib | Industrial Climate Tech | May 2024 | Series A | ≈$59,400,000 | Recycles lithium-ion batteries through an end-to-end process that recovers lithium, graphite, nickel, cobalt and manganese. | Europe | World Fund; Porsche Ventures |
| trawa | Clean Energy Systems | May 2024 | Seed | ≈$10,800,000 | Supplies renewable electricity and software that optimizes energy purchasing and consumption for SMEs. | Europe | Balderton Capital |
| ULEMCo | Low Carbon Mobility | May 2024 | Unknown | >≈$6,350,000 | Develops hydrogen combustion, dual-fuel and fuel-cell systems for decarbonizing commercial vehicles and heavy equipment. | Europe | Mercia Ventures |
| enspired | Clean Energy Systems | May 2024 | Series B | ≈$27,500,000 | Optimizes batteries and other flexible power assets in electricity markets to support renewable-energy integration. | Europe | Zouk Capital |
| Active Surfaces | Clean Energy Systems | May 2024 | Seed | $5.6M | Develops lightweight flexible photovoltaic modules manufactured using scalable semiconductor-printing processes. | North America | Safar Partners |
| Li Industries | Industrial Climate Tech | May 2024 | Series B | $36M | Develops direct recycling technology for lithium-ion batteries, including lithium iron phosphate batteries. | North America | Bosch Ventures; Khosla Ventures; LG Technology Ventures |
| Rize | Industrial Climate Tech | May 2024 | Series A | $14M | Operates a technology and agronomy platform that reduces methane and water use in rice cultivation. | Asia-Pacific | Breakthrough Energy Ventures; GenZero; Temasek; Wavemaker Impact |
| ArkeaBio | Industrial Climate Tech | May 2024 | Series A | $26.5M | Develops vaccines designed to reduce methane emissions produced by livestock. | North America | Breakthrough Energy Ventures |
| Hysata | Clean Energy Systems | May 2024 | Series B | $111.3M | Develops high-efficiency capillary-fed electrolyzers for lower-cost production of green hydrogen. | Asia-Pacific | bp Ventures; Templewater |
| Treefera | Carbon Removal Platforms | May 2024 | Series A | $12M | Provides satellite, AI and data infrastructure for measuring forest, land and carbon assets used in carbon markets. | Europe | Not disclosed |
| AlterBiota | Industrial Climate Tech | May 2024 | Seed | ≈$2,900,000 | Develops bio-graphene concrete admixtures intended to lower cement use and concrete's carbon footprint. | North America | Invest Nova Scotia |
| Arbol | Climate Adaptation Solutions | May 2024 | Series B | $60M | Provides technology-enabled parametric insurance designed to protect businesses against weather and climate risks. | North America | Giant Ventures; Opera Tech Ventures |
| Jooules | Industrial Climate Tech | May 2024 | Seed | ≈$600,000 | Uses gaseous fermentation to convert CO2 emission streams into food-grade protein ingredients. | Asia-Pacific | Not disclosed |
| CHARGE ZONE | Low Carbon Mobility | April 2024 | Growth Equity | $19M | Builds and operates high-speed EV charging networks for cars, buses and trucks. | Asia-Pacific | Not disclosed |
| Linova Energy | Clean Energy Systems | April 2024 | Series A | $15.8M | Develops high-energy polymer-cathode batteries designed to eliminate cobalt, nickel and other critical cathode materials. | North America | Catalus Capital |
| Novamea | Clean Energy Systems | April 2024 | Unknown | $1.2M | Develops anion-exchange-membrane electrolyzer technology for lower-cost production of green hydrogen. | Europe | Not disclosed |
| Carbonfact | Industrial Climate Tech | April 2024 | Series A | $15M | Provides product-level carbon accounting and lifecycle-analysis software specifically for fashion and footwear companies. | Europe | Alven |
| Pine Gate Renewables | Clean Energy Systems | April 2024 | Growth Equity | $150M | Develops, owns and operates utility-scale solar and energy-storage projects across the United States. | North America | Generate Capital |
| Kubik | Building Decarbonization Tech | April 2024 | Seed | $1.9M | Upcycles difficult-to-recycle plastic into low-carbon modular building materials. | Africa | African Renaissance Partners |
| goodcarbon | Carbon Removal Platforms | April 2024 | Unknown | $1.6M | Operates a platform for sourcing and managing high-quality nature-based carbon-credit portfolios. | Europe | Ocean 14 Capital |
| Solarge | Clean Energy Systems | April 2024 | Growth Equity | $1.2M | Manufactures lightweight, low-carbon photovoltaic modules for commercial and industrial rooftops. | Europe | Not disclosed |
| Camion | Low Carbon Mobility | April 2024 | Seed | $1.9M | Provides software that evaluates sites, grid capacity and demand to plan EV charging and property electrification. | Europe | EQT Ventures |
| Green Energy Park | Clean Energy Systems | April 2024 | Series A | $10M | Develops large-scale renewable-hydrogen and hydrogen-derivative production and export infrastructure. | Europe | Not disclosed |
| Neot Capital | Low Carbon Mobility | April 2024 | Growth Equity | $14M | Finances and operates zero-emission mobility assets and charging infrastructure for transport fleets. | Europe | Not disclosed |
| Accacia | Building Decarbonization Tech | April 2024 | Unknown | $1.5M | Provides AI-enabled software for measuring real-estate emissions and planning building decarbonization. | Asia-Pacific | Illuminate Financial |
| AQUABATTERY | Clean Energy Systems | April 2024 | Seed | $1.4M | Develops saltwater flow batteries for long-duration storage of renewable electricity. | Europe | EIT InnoEnergy |
| NETA Auto | Low Carbon Mobility | April 2024 | Growth Equity | >$290,000,000 | Designs and manufactures battery-electric vehicles under the NETA Auto brand. | Asia-Pacific | Not disclosed |
| SWTCH Energy | Low Carbon Mobility | April 2024 | Series B | $17.2M | Provides EV-charging hardware, software and energy-management solutions for multifamily and commercial buildings. | North America | Blue Earth Capital |
| Bcomp | Industrial Climate Tech | April 2024 | Series C | $10M | Develops low-carbon natural-fibre composite materials that replace heavier and more emissions-intensive synthetic composites. | Europe | EGS Beteiligungen AG |
| Blykalla | Clean Energy Systems | April 2024 | Series A | $1.5M | Develops lead-cooled small modular nuclear reactors for low-carbon electricity generation. | Europe | Norrsken Launcher; Nucleation Capital |
| Cozero | Industrial Climate Tech | April 2024 | Series A | $1M | Provides enterprise software for measuring, managing and reducing corporate and product greenhouse-gas emissions. | Europe | Kvanted Ventures; EnBW New Ventures |
| GridBeyond | Clean Energy Systems | April 2024 | Series C | $15.6M | Operates an AI-based smart-grid platform that optimizes distributed energy resources, flexibility and electricity demand. | Europe | Alantra's Energy Transition Fund, Klima |
| Quilt | Building Decarbonization Tech | April 2024 | Series A | $13M | Develops high-efficiency residential heat-pump systems with software-controlled room-by-room heating and cooling. | North America | Energy Impact Partners; Galvanize Climate Solutions |
| Sumday | Industrial Climate Tech | April 2024 | Seed | $1.5M | Provides audit-ready greenhouse-gas accounting software used by businesses, accountants and supply chains. | Asia-Pacific | Planeteer Capital |
| Arcadia | Clean Energy Systems | April 2024 | Growth Equity | $10M | Provides utility-data infrastructure and community-solar services that enable deployment and management of distributed clean-energy solutions. | North America | Not disclosed |
| KODE Labs | Building Decarbonization Tech | April 2024 | Series B | $10M | Provides an autonomous smart-building operating platform that integrates building systems to reduce energy use and emissions. | North America | Maverix Private Equity |
| CleanFiber | Building Decarbonization Tech | April 2024 | Series B | $18M | Manufactures lower-carbon cellulose building insulation from recycled corrugated cardboard. | North America | Spring Lane Capital |
| Captura | Carbon Removal Platforms | April 2024 | Series A | $11.8M | Develops direct-ocean-capture systems that remove CO2 from seawater so the ocean can absorb additional atmospheric CO2. | North America | Not disclosed |
| Carrar | Low Carbon Mobility | April 2024 | Series A | $1.3M | Develops EV battery modules and two-phase immersion thermal-management systems designed to extend battery life and improve safety. | Middle East | Not disclosed |
| HYSETCO | Low Carbon Mobility | April 2024 | Growth Equity | $117M | Operates hydrogen refueling infrastructure and integrated hydrogen-vehicle fleet services for intensive urban mobility. | Europe | Hy24 |
| Renewance | Clean Energy Systems | April 2024 | Series A | $18M | Provides lifecycle management, maintenance, commissioning and end-of-life services for industrial batteries used in energy storage and EV applications. | North America | IMM Investment Hong Kong; RockCreek Group |
| AVESS Energy | Clean Energy Systems | April 2024 | Series A | $155K | Develops and manufactures vanadium-redox-flow battery systems for long-duration energy storage. | Asia-Pacific | Not disclosed |
| Proxima Fusion | Clean Energy Systems | April 2024 | Seed | $11.7M | Develops quasi-isodynamic stellarator fusion power plants using high-temperature superconducting magnets. | Europe | redalpine |
| SunCulture | Climate Adaptation Solutions | April 2024 | Series B | $17.5M | Provides solar-powered irrigation systems and related agricultural technology for smallholder farmers. | Africa | Not disclosed |
| TES | Clean Energy Systems | April 2024 | Series C | $152M | Develops large-scale green-hydrogen and renewable e-NG production, transport and import infrastructure. | Europe | Not disclosed |
| ION Clean Energy | Industrial Climate Tech | April 2024 | Series A | $15M | Develops solvent-based post-combustion carbon-capture technology for hard-to-abate industrial emissions. | North America | Chevron New Energies |
| Alsym Energy | Clean Energy Systems | April 2024 | Series C | $18M | Develops non-flammable rechargeable batteries for stationary energy storage, marine and mobility applications without lithium or cobalt. | North America | Tata Limited; General Catalyst |
| Polar Night Energy | Clean Energy Systems | April 2024 | Seed | $1.2M | Develops large-scale sand-based thermal energy storage systems for storing renewable electricity as heat. | Europe | Jonathan Oppenheimer |
| Elcogen | Clean Energy Systems | April 2024 | Growth Equity | $13.2M | Manufactures solid-oxide fuel-cell and electrolyzer cells, stacks and modules for clean power and green hydrogen systems. | Europe | Not disclosed |
| Lightshift Energy | Clean Energy Systems | March 2024 | Growth Equity | $10M | Develops, owns and operates utility-scale battery-energy-storage projects for electric-grid flexibility and renewable integration. | North America | Not disclosed |
| Southern Lights | Clean Energy Systems | March 2024 | Seed | ≈$2,740,000 | Provides software for designing, modelling and assessing the technical and commercial feasibility of green-hydrogen projects. | Europe | Greencode Ventures |
| Evari | Building Decarbonization Tech | March 2024 | Seed | $7.5M | Develops high-efficiency turbocompressors for heat pumps used to electrify residential, commercial and industrial heating and cooling. | North America | Clean Energy Ventures |
| Evoloh | Clean Energy Systems | March 2024 | Series A | $10M | Manufactures high-throughput alkaline electrolyzer stacks designed to lower the cost of low-carbon hydrogen production. | North America | Engine Ventures |
| Neocrete | Industrial Climate Tech | March 2024 | Seed | $4M | Produces a concrete additive that reduces cement requirements and associated embodied-carbon emissions. | Asia-Pacific | Wavemaker Partners |
| Eleport | Low Carbon Mobility | March 2024 | Unknown | ≈$2,450,000 | Develops and operates public EV-charging infrastructure and charging-management services across Central and Eastern Europe. | Europe | Not disclosed |
| Planboo | Carbon Removal Platforms | March 2024 | Unknown | >$2,100,000 | Provides digital MRV infrastructure and project tools for biochar-based durable carbon removal. | Europe | Not disclosed |
| Cemvision | Industrial Climate Tech | March 2024 | Seed | ≈$20,900,000 | Produces ultra-low-carbon cement using alternative raw materials and an electrified, lower-temperature manufacturing process. | Europe | Not disclosed |
| Greenly | Industrial Climate Tech | March 2024 | Series B | $12M | Provides carbon-accounting and decarbonization software that helps businesses measure, manage and reduce greenhouse-gas emissions. | Europe | Fidelity International Strategic Ventures |
| AirMyne | Carbon Removal Platforms | March 2024 | Seed | $1.9M | Develops low-temperature direct-air-capture technology designed to use geothermal or industrial heat. | North America | Not disclosed |
| Blixt | Clean Energy Systems | March 2024 | Seed | ≈$2,450,000 | Develops solid-state circuit breakers and software-defined power systems for flexible, renewable-heavy electricity grids. | Europe | Union Square Ventures; Energy Revolution Ventures |
| Candela | Low Carbon Mobility | March 2024 | Unknown | ≈$27,000,000 | Designs and manufactures battery-electric hydrofoil boats and passenger ferries that reduce marine transport energy use and emissions. | Europe | Groupe Beneteau |
| Monaire | Building Decarbonization Tech | March 2024 | Seed | $1.5M | Uses AI, sensors and automated diagnostics to reduce HVAC and refrigeration energy waste in commercial buildings. | North America | Construct Capital |
| Enapi | Low Carbon Mobility | March 2024 | Seed | ≈$2,720,000 | Provides transaction and connectivity infrastructure linking EV charge-point operators with e-mobility service providers. | Europe | Project A Ventures |
| Sprih | Industrial Climate Tech | March 2024 | Seed | $1M | Provides AI-enabled carbon-accounting and emissions-management software for companies and their supply chains. | Asia-Pacific | Leo Capital |
| Mission Zero Technologies | Carbon Removal Platforms | March 2024 | Series A | ≈$27,900,000 | Develops modular electrochemical direct-air-capture systems for permanent atmospheric CO2 removal. | Europe | 2150 |
| Novocarbo | Carbon Removal Platforms | March 2024 | Growth Equity | ≈$27,250,000 | Builds and operates biochar carbon-removal plants that permanently store carbon while supplying renewable heat. | Europe | Not disclosed |
| Themo | Building Decarbonization Tech | March 2024 | Unknown | ≈$2,420,000 | Makes smart electric-heating controls that optimize energy use and aggregate flexible demand for electricity-grid balancing. | Europe | Sunly |
| Furno | Industrial Climate Tech | March 2024 | Seed | $1.5M | Develops compact high-efficiency cement kilns and process technology designed to sharply reduce cement-production emissions. | North America | Energy Capital Ventures |
| LOHUM | Industrial Climate Tech | March 2024 | Series B | $14M | Recycles and repurposes lithium-ion batteries and refines recovered materials for the energy-transition battery supply chain. | Asia-Pacific | Not disclosed |
| CarbonCapture | Carbon Removal Platforms | March 2024 | Series A | $80M | Builds modular direct-air-capture machines that remove CO2 from ambient air for storage or utilization. | North America | Prime Movers Lab |
| Quaise Energy | Clean Energy Systems | March 2024 | Series A | $21M | Develops millimeter-wave drilling technology to access deep geothermal heat and power resources. | North America | Prelude Ventures; Safar Partners |
| Suiso | Clean Energy Systems | March 2024 | Unknown | ≈$2,840,000 | Develops on-site low-carbon hydrogen generators using microwave-driven methane decomposition with solid-carbon capture. | Europe | Not disclosed |
| Greenlyte Carbon Technologies | Carbon Removal Platforms | March 2024 | Seed | ≈$21,450,000 | Develops direct-air-capture systems that remove atmospheric CO2 while producing hydrogen as a by-product. | Europe | Not disclosed |
| Phelas | Clean Energy Systems | March 2024 | Seed | ≈$2,470,000 | Develops long-duration liquid-air energy storage and software for planning renewable-energy and storage deployments. | Europe | E44 Ventures |
| Thryve.Earth | Carbon Removal Platforms | March 2024 | Seed | $1.6M | Develops and manages nature-based carbon-removal projects using remote sensing, ecological science and machine learning. | Asia-Pacific | Openspace Ventures |
| Sunfire | Clean Energy Systems | March 2024 | Series D+ | ≈$234,000,000 | Manufactures industrial alkaline and solid-oxide electrolyzers for renewable hydrogen and syngas production. | Europe | Not disclosed |
| Gridcog | Clean Energy Systems | March 2024 | Seed | ≈$2,220,000 | Provides software for modelling and optimizing distributed clean-energy projects including solar, storage and EV infrastructure. | Europe | AlbionVC |
| StormFisher Hydrogen | Clean Energy Systems | March 2024 | Growth Equity | ≈$22,100,000 | Develops large-scale e-fuel facilities producing low-carbon fuels from renewable electricity. | North America | Not disclosed |
| Fervo Energy | Clean Energy Systems | February 2024 | Growth Equity | $144M | Develops enhanced geothermal systems for round-the-clock carbon-free electricity generation. | North America | Devon Energy |
| Smart Joules | Building Decarbonization Tech | February 2024 | Unknown | $1M | Provides energy-efficiency and cooling-as-a-service systems that reduce electricity use in commercial buildings. | Asia-Pacific | Not disclosed |
| Axiom Cloud | Building Decarbonization Tech | February 2024 | Unknown | $1M | Provides software that detects refrigerant leaks and optimizes commercial refrigeration energy use. | North America | Toshiba Tec; WindSail Capital |
| Altilium | Clean Energy Systems | February 2024 | Series A | $1.4M | Recovers lithium, nickel, cobalt and other battery materials from end-of-life lithium-ion batteries. | Europe | Not disclosed |
| Antora Energy | Industrial Climate Tech | February 2024 | Series B | $150M | Manufactures thermal batteries that store renewable electricity as high-temperature heat for industrial processes. | North America | Decarbonization Partners |
| Clairity Technology | Carbon Removal Platforms | February 2024 | Seed | $1.8M | Develops modular direct-air-capture systems for removing dilute atmospheric CO2. | North America | Initialized Capital; Lowercarbon Capital |
| Hohm Energy | Clean Energy Systems | February 2024 | Seed | $1M | Operates a marketplace and financing platform connecting customers with rooftop-solar installers and equipment. | Africa | E3 Capital; 4DX Ventures |
| Varaha | Carbon Removal Platforms | February 2024 | Series A | $1.7M | Develops and finances agriculture and land projects that reduce or remove greenhouse-gas emissions and generate carbon credits. | Asia-Pacific | RTP Global |
| AtmosZero | Industrial Climate Tech | February 2024 | Series A | $11M | Develops electrified heat-pump boilers that replace fossil-fuel industrial steam generation. | North America | Engine Ventures; 2150 |
| Banyu Carbon | Carbon Removal Platforms | February 2024 | Seed | $1.5M | Develops sunlight-driven ocean carbon-dioxide removal technology using seawater chemistry. | North America | Not disclosed |
| Arnergy | Clean Energy Systems | February 2024 | Unknown | $1M | Provides distributed solar, battery and energy-management systems to homes and businesses. | Africa | Not disclosed |
| Insight M | Industrial Climate Tech | February 2024 | Series D+ | $52M | Detects and quantifies methane emissions from oil and gas infrastructure using aerial sensing. | North America | BlackRock |
| Sage Geosystems | Clean Energy Systems | February 2024 | Series A | $17M | Develops geothermal power and subsurface energy-storage systems using engineered wells. | North America | Not disclosed |
| Planette | Climate Adaptation Solutions | February 2024 | Seed | $2.4M | Produces AI-based seasonal weather and climate predictions for organizations exposed to climate-related operational risks. | North America | Not disclosed |
| Roam | Low Carbon Mobility | February 2024 | Series A | $14M | Designs and manufactures electric motorcycles and buses for African transport markets. | Africa | Equator |
| Aegir Insights | Clean Energy Systems | February 2024 | Series A | $1.2M | Provides software, data and investment intelligence specifically for offshore-wind development. | Europe | Seaya Andromeda |
| Thea Energy | Clean Energy Systems | February 2024 | Series A | $20M | Develops stellarator fusion systems for commercial zero-carbon power generation. | North America | Prelude Ventures |
| Amperesand | Clean Energy Systems | February 2024 | Seed | $12.5M | Develops solid-state transformers for flexible, high-capacity renewable and electrified power grids. | Asia-Pacific | Not disclosed |
| Avnos | Carbon Removal Platforms | February 2024 | Series A | $36M | Develops hybrid direct-air-capture systems that remove atmospheric CO2 while also producing water. | North America | NextEra Energy Resources |
| CarbonHQ | Carbon Removal Platforms | February 2024 | Seed | $190K | Provides project-management, forecasting and MRV software for developers of carbon-credit projects. | Asia-Pacific | Galileo Ventures; Investible Climate Tech Fund |
| Cosmic Aerospace | Low Carbon Mobility | February 2024 | Seed | $4.5M | Develops highly efficient all-electric passenger aircraft for regional aviation. | North America | Pale blue dot |
| Azul Energy | Clean Energy Systems | February 2024 | Series A | $1.2M | Develops non-precious-metal catalysts for fuel cells, electrolyzers and other clean-energy electrochemical systems. | Asia-Pacific | Not disclosed |
| Blue Frontier | Building Decarbonization Tech | February 2024 | Unknown | $16.9M | Develops liquid-desiccant air-conditioning systems that sharply reduce building cooling electricity use and refrigerant impact. | North America | Not disclosed |
| Energy Source | Clean Energy Systems | February 2024 | Unknown | $1.2M | Repurposes, repairs and recycles lithium-ion batteries, including batteries from electric vehicles. | Latin America | Not disclosed |
| Anthro Energy | Clean Energy Systems | February 2024 | Series A | $10M | Develops advanced polymer electrolytes to improve the safety, performance and manufacturability of lithium batteries. | North America | Collaborative Fund |
| Arch | Building Decarbonization Tech | February 2024 | Seed | $1M | Provides software for HVAC contractors to design and sell electrification and heat-pump projects. | North America | Not disclosed |
| Ascend Elements | Clean Energy Systems | February 2024 | Series D+ | $162M | Recycles lithium-ion batteries and produces engineered battery materials from recovered feedstock. | North America | Not disclosed |
| Camus Energy | Clean Energy Systems | February 2024 | Series A | $25M | Provides grid-management software for utilities integrating distributed and renewable energy resources. | North America | Congruent Ventures |
| Celadyne | Clean Energy Systems | February 2024 | Seed | $1.5M | Develops durable membranes for hydrogen fuel cells and electrolyzers to reduce cost and improve efficiency. | North America | Not disclosed |
| Clevergy | Building Decarbonization Tech | February 2024 | Seed | $1M | Provides household energy-management software intended to reduce electricity consumption and bills. | Europe | Not disclosed |
| Crux | Clean Energy Systems | February 2024 | Series A | $18M | Operates a marketplace for transferable clean-energy tax credits that finance decarbonization projects. | North America | Andreessen Horowitz |
| Cyclize | Industrial Climate Tech | February 2024 | Seed | $1M | Develops plasma technology that converts plastic waste and other carbon-rich waste into chemical feedstocks. | Europe | Not disclosed |
| EST-Floattech | Low Carbon Mobility | February 2024 | Seed | $1.3M | Develops lithium-ion battery systems for electric and hybrid marine vessels. | Europe | Not disclosed |
| EVIOS | Low Carbon Mobility | February 2024 | Series A | $1M | Designs and operates smart home charging systems for electric vehicles. | Europe | Beringea |
| Fever | Clean Energy Systems | February 2024 | Seed | $11M | Provides software that connects and orchestrates distributed energy assets for power grids. | Europe | General Catalyst |
| GeoPura | Clean Energy Systems | February 2024 | Growth Equity | $11M | Produces and supplies green-hydrogen power systems that replace diesel generators. | Europe | Not disclosed |
| Haven Energy | Clean Energy Systems | February 2024 | Series A | $1M | Provides residential battery-storage installation, financing and energy-management services. | North America | Giant Ventures |
| Heart Aerospace | Low Carbon Mobility | February 2024 | Series B | $107M | Develops hybrid-electric regional passenger aircraft intended to cut aviation emissions. | Europe | Not disclosed |
| Jua | Climate Adaptation Solutions | February 2024 | Seed | $16M | Builds AI weather and climate models for energy forecasting and climate-risk applications. | Europe | 468 Capital |
| Koloma | Clean Energy Systems | February 2024 | Series B | $145M | Develops technology to locate and commercially extract naturally occurring geologic hydrogen. | North America | Khosla Ventures |
| Kvasir Technologies | Low Carbon Mobility | February 2024 | Seed | $1.2M | Converts lignocellulosic biomass into low-carbon liquid fuel for hard-to-electrify transport. | Europe | Not disclosed |
| Lilac Solutions | Industrial Climate Tech | February 2024 | Series C | $145M | Develops ion-exchange technology for lower-impact extraction of lithium used in batteries. | North America | Not disclosed |
| Mobile Power | Clean Energy Systems | February 2024 | Seed | $1M | Provides pay-per-use battery systems and clean distributed energy services in African markets. | Europe | Not disclosed |
| Monumo | Low Carbon Mobility | February 2024 | Seed | $13M | Uses simulation and AI to design more efficient electric motors for electric vehicles. | Europe | LQD VC |
| Niron Magnetics | Industrial Climate Tech | February 2024 | Unknown | $15M | Develops rare-earth-free permanent magnets for electric motors, generators and other electrification applications. | North America | Not disclosed |
| P3 | Low Carbon Mobility | February 2024 | Series A | $107M | Develops autonomous electric vehicles and an associated urban mobility service. | Europe | Not disclosed |
| PURE EV | Low Carbon Mobility | February 2024 | Series A | $8M | Manufactures electric two-wheelers and associated battery systems. | Asia-Pacific | Not disclosed |
| RideRiver | Low Carbon Mobility | February 2024 | Series B | $10M | Designs and manufactures electric two-wheelers for urban transport. | Asia-Pacific | Not disclosed |
| Rimere | Industrial Climate Tech | February 2024 | Unknown | $10M | Uses plasma technology to convert methane into hydrogen and solid carbon without direct CO2 emissions. | North America | Not disclosed |
| Rock Rabbit | Building Decarbonization Tech | February 2024 | Seed | $1M | Automates identification and processing of rebates and incentives for home-energy upgrades. | North America | Powerhouse Ventures |
| Synaptec | Clean Energy Systems | February 2024 | Series A | $8M | Develops passive sensing technology for monitoring and protecting electricity-grid infrastructure. | Europe | Not disclosed |
| Tau Group | Low Carbon Mobility | February 2024 | Series B | $12M | Develops high-performance wire and motor technologies designed to improve electric-vehicle efficiency. | Europe | Not disclosed |
| Watershed | Industrial Climate Tech | February 2024 | Series C | $100M | Provides software for companies to measure, report and reduce greenhouse-gas emissions. | North America | Greenoaks |
| Yulu | Low Carbon Mobility | February 2024 | Series B | $19.3M | Operates shared electric two-wheelers and battery-swapping infrastructure for urban mobility. | Asia-Pacific | Not disclosed |
| Zūm | Low Carbon Mobility | February 2024 | Growth Equity | $140M | Operates technology-enabled electric school-bus fleets and transportation services. | North America | Not disclosed |
| COLIPI | Industrial Climate Tech | January 2024 | Seed | ≈$1,950,000 | Uses carbon-capturing biotechnology and fermentation to produce low-carbon oils as alternatives to fossil and palm-derived feedstocks. | Europe | High-Tech Gründerfonds |
| Boston Metal | Industrial Climate Tech | January 2024 | Series C | $10M | Develops molten-oxide electrolysis technology for producing steel and other metals without conventional carbon-intensive smelting. | North America | Not disclosed |
| Cultivo | Carbon Removal Platforms | January 2024 | Series A | $14M | Develops and finances nature-based carbon-removal projects using geospatial technology and project monitoring. | North America | MassMutual Ventures; Octopus Energy Generation |
| CarbonPool | Carbon Removal Platforms | January 2024 | Seed | $12M | Provides insurance against carbon-credit shortfalls and reversals to support durable carbon-removal transactions. | Europe | Heartcore Capital; Vorwerk Ventures |
| Methanol-Hydrogen Technology | Low Carbon Mobility | January 2024 | Unknown | $100M | Develops methanol-hydrogen electric commercial vehicles, green-methanol technology and associated refueling infrastructure. | Asia-Pacific | Not disclosed |
| CEEZER | Carbon Removal Platforms | January 2024 | Series A | ≈$11,200,000 | Provides software for sourcing, evaluating, financing and managing corporate portfolios of carbon-removal and carbon-reduction credits. | Europe | HV Capital |
| AiDash | Climate Adaptation Solutions | January 2024 | Series C | $10M | Uses satellite data and AI to make electric utilities and other critical infrastructure more resilient to climate-driven vegetation, wildfire and weather risks. | North America | Lightrock |
| Instagrid | Clean Energy Systems | January 2024 | Series C | $15M | Manufactures high-performance portable battery systems that replace fossil-fuel generators in off-grid applications. | Europe | Teachers' Venture Growth |
| Monta | Low Carbon Mobility | January 2024 | Series B | ≈$87,000,000 | Provides software and infrastructure for operating, managing and paying for electric-vehicle charging. | Europe | Energize Capital; GreenPoint Partners; Export and Investment Fund of Denmark |
| Sion Power | Low Carbon Mobility | January 2024 | Series A | $15M | Develops high-energy-density lithium-metal batteries designed primarily for electric vehicles. | North America | LG Energy Solution |
| Captura | Carbon Removal Platforms | January 2024 | Series A | $11.5M | Develops Direct Ocean Capture systems that remove dissolved CO₂ from seawater so the ocean can absorb additional atmospheric CO₂. | North America | Future Planet Capital |
| H2 Green Steel | Industrial Climate Tech | January 2024 | Growth Equity | ≈$326,000,000 | Develops large-scale near-zero-emission steel production using renewable electricity and green hydrogen. | Europe | Not disclosed |
| Reel | Clean Energy Systems | January 2024 | Seed | ≈$5,400,000 | Supplies businesses with renewable electricity contracts directly linked to financing new wind and solar generation. | Europe | Transition |
| Aira | Building Decarbonization Tech | January 2024 | Series B | ≈$158,000,000 | Supplies and installs residential heat pumps and related clean-energy systems to replace fossil-fuel heating. | Europe | Altor; Kinnevik; Temasek |
| Element Zero | Industrial Climate Tech | January 2024 | Seed | $10M | Develops an electrochemical process for producing iron and other metals from ore without direct carbon emissions. | Asia-Pacific | Playground Global |
| INERATEC | Clean Energy Systems | January 2024 | Series B | ≈$129,000,000 | Produces synthetic e-fuels from renewable hydrogen and captured CO₂ for hard-to-electrify transport and industry. | Europe | Piva Capital |
| International Battery Company | Low Carbon Mobility | January 2024 | Unknown | $15M | Develops large-format lithium-ion battery cells tailored for electric mobility, particularly the Indian market. | North America | RTP Global |
| Electra | Low Carbon Mobility | January 2024 | Series B | ≈$331,000,000 | Develops and operates fast-charging stations for electric vehicles across Europe. | Europe | PGGM Infrastructure Fund |
| Tibo Energy | Clean Energy Systems | January 2024 | Seed | ≈$3,290,000 | Provides AI-based energy-management software for optimizing on-site generation, storage, consumption and constrained grid capacity. | Europe | SET Ventures |
| LivNSense | Industrial Climate Tech | January 2024 | Unknown | $1.8M | Uses AI and industrial digital twins to identify and reduce emissions in hard-to-abate manufacturing operations. | Asia-Pacific | Pavestone Technology Fund |
| Qiyuan Green Power | Low Carbon Mobility | January 2024 | Series B | ≈$211,000,000 | Operates battery-swapping infrastructure, battery assets and digital energy services for electric heavy-duty trucks and machinery. | Asia-Pacific | Not disclosed |

As this chart shows, and as featured in our climate tech market deck, search interest in climate change has continued to rise
Is climate tech funding really as huge as the headlines make it look?
Climate tech funding is a genuinely large market today, but the headline total makes the average company look far better funded than it really is.
We tracked 1,002 financings across 900 climate tech companies, representing $39.52 billion of recorded capital. Once we remove rounds above $50 million, that total falls to $9.97 billion. The difference is enormous: a relatively small group of very large financings creates roughly three quarters of the market's dollar value.
The typical financing looks much more ordinary. The median round was $10 million, compared with a $39.6 million average. Two thirds of quantified deals were below $20 million.
That split still looks relevant today. The IEA's latest State of Energy Innovation report says energy-tech venture funding fell again in 2025, its third consecutive annual decline, even as more than 320 energy startups raised their first funding during the year. Meanwhile, companies such as CFS, Valar Atomics and Form Energy have recently raised $1 billion, $1 billion and $750 million respectively. Money is still available at extraordinary scale, but only for a narrow group of companies that have reached the point where investors are willing to fund physical expansion.
How many climate tech companies are actually getting funded?
The climate tech funding market is broad: we found 900 separate companies behind those 1,002 financings.
Most only appear once. Of the 900 companies, 810 completed one qualifying financing during the period, 78 completed two and only 12 raised three or more times.
That gives climate tech a very different shape from what the biggest funding announcements suggest. Hundreds of companies can get a round done, while repeat access to capital remains much less common.
The companies that do come back are disproportionately important. The 90 repeat fundraisers represented only 10% of companies but raised $16.36 billion, equivalent to 41.4% of all recorded capital.
So climate tech currently has plenty of funded companies. The rarer achievement is becoming one of the businesses investors will finance again, particularly once the required cheque gets much larger.

This chart, featured in our climate tech market deck, looks at First Solar’s strategy in climate tech
Is climate tech funding controlled by a handful of companies?
Climate tech funding is concentrated at the top, although no single company comes close to controlling the market.
Base Power raised $2.20 billion across three qualifying rounds in our dataset. Commonwealth Fusion Systems followed with $1.863 billion across two, while AVATR raised more than $1.51 billion in one financing. X-energy, Form Energy and Valar Atomics each crossed $1 billion as well.
The five largest companies captured 20.1% of all capital. Expand that group to ten and the share reaches 31.4%.
Recent activity reinforces the same pattern. CFS raised another $1 billion in equity, Valar Atomics closed a $1 billion Series B, Form Energy announced $750 million of Series G financing and Base Power has now raised more than $1 billion while rapidly expanding its distributed battery fleet.
These companies are operating in businesses where getting bigger often means building factories, power systems, storage fleets or major engineering facilities. Once a company reaches that layer of the market, its capital requirements move into a completely different league.
| Company | Qualifying rounds | Capital raised in the window |
|---|---|---|
| Base Power | 3 | $2.20B |
| Commonwealth Fusion Systems | 2 | $1.863B |
| AVATR | 1 | >$1.510B |
| X-energy | 2 | $1.20B |
| Form Energy | 2 | $1.155B |
| Valar Atomics | 2 | $1.105B |
| Pacific Fusion | 1 | >$900M committed |
| Helion Energy | 2 | $890M |
| Deepal | 1 | $874M |
| Antora Energy | 2 | $700M |
What does a normal climate tech startup actually raise?
A normal climate tech financing today is much closer to $10 million than to the nine-figure rounds that dominate the news.
The clearest figure is the $10 million median round. Of the 997 financings where we could quantify the amount, 331 were below $5 million and another 339 were between $5 million and $20 million.
That means 670 deals, roughly two thirds of the market, happened below $20 million.
The distribution changes dramatically at the top. Only 88 financings were worth at least $100 million, yet those deals absorbed $26.03 billion, or 65.9% of all recorded capital.
For founders, that is probably the most useful way to read the market. Climate tech can produce $500 million or $1 billion rounds, but those deals say very little about what an ordinary funded company can expect to raise.
| Deal size | Deals | Share of quantified deals | Capital | Share of capital |
|---|---|---|---|---|
| Under $5M | 331 | 33.2% | $764M | 1.9% |
| $5M–<$20M | 339 | 34.0% | $3.64B | 9.2% |
| $20M–<$50M | 180 | 18.1% | $5.17B | 13.1% |
| $50M–<$100M | 59 | 5.9% | $3.92B | 9.9% |
| $100M+ | 88 | 8.8% | $26.03B | 65.9% |
| All quantified deals | 997 | 100% | $39.52B | 100% |
| Median round | — | — | $10.0M | — |
| Average round | — | — | $39.6M | — |

In our climate tech market deck, we ensure you have the latest information
Which parts of climate tech are getting the serious money?
Clean Energy Systems is where the serious climate tech money sits today, with almost 60% of all capital flowing into that category.
We counted 417 Clean Energy Systems deals worth $23.63 billion. Low Carbon Mobility came next with $7.96 billion, followed by Industrial Climate Tech with $4.07 billion.
The differences become clearer once we compare money with activity. Clean Energy Systems generated 41.6% of deals but received 59.8% of capital. Low Carbon Mobility also punched above its deal count, with 15.4% of deals and 20.1% of funding.
Industrial Climate Tech moved the other way: 20.7% of deals produced only 10.3% of capital. Building Decarbonization accounted for more than one deal in ten but less than 4% of the money.
There is plenty of funding activity across climate tech, but the biggest pools of capital are concentrated in technologies where scaling requires expensive physical assets.
| Category | Deals | Companies | Capital | Median round |
|---|---|---|---|---|
| Clean Energy Systems | 417 | 371 | $23.63B | $11.7M |
| Industrial Climate Tech | 207 | 194 | $4.07B | $7.6M |
| Low Carbon Mobility | 154 | 139 | $7.96B | $13.9M |
| Building Decarbonization | 106 | 96 | $1.52B | $5.5M |
| Carbon Removal | 78 | 74 | $1.62B | $11.4M |
| Climate Adaptation | 40 | 38 | $715M | $10.0M |
| Total market | 1,002 | 900 | $39.52B | $10.0M |
Why is so much climate tech money going into energy companies?
Clean Energy Systems attracts such large climate tech rounds because scaling these companies often means paying for actual industrial infrastructure.
CFS is a good example. The company recently raised another $1 billion while moving from the SPARC fusion demonstration machine toward its planned ARC commercial power plant. Its financing story is increasingly tied to building and commercializing physical power infrastructure rather than simply funding more research.
Pacific Fusion makes the point even more clearly. Its Series A exceeds $900 million, but the financing was committed upfront and is released as the company reaches predefined technical milestones. The company has since started building a $1 billion-scale research and manufacturing campus in New Mexico for a demonstration fusion system.
Valar Atomics has taken a similar route in nuclear. Its recent $1 billion Series B is explicitly intended to accelerate manufacturing of standardized nuclear plants. Form Energy's $750 million Series G is aimed at scaling iron-air battery manufacturing and commercial deployment.
This is why the upper end of climate tech looks so different from software venture funding. The IEA currently describes capital intensity, long lead times, physical infrastructure and first-of-a-kind deployment as major obstacles for emerging energy technologies. Our funding data shows those costs appearing directly in round sizes.

This chart, featured in our climate tech market deck, illustrates yearly funding for climate tech startups
Is Low Carbon Mobility broadly well funded, or is one giant deal doing the work?
Low Carbon Mobility is clearly a capital-heavy part of climate tech, although one very large AVATR financing makes the category look richer than it normally is.
The category attracted $7.96 billion across 154 financings and has the highest median round among the six categories, at $13.9 million.
AVATR's Series C alone exceeded RMB11 billion, or more than $1.51 billion in our dataset. That single transaction accounts for about 19% of all Low Carbon Mobility capital.
Remove AVATR and the category still has a large funding base, so the conclusion does not disappear. But its headline total is much more sensitive to individual companies than Clean Energy Systems, where large rounds are spread across a wider group of businesses.
Mobility funding currently looks like a real scale-capital market with an unusually heavy top end, rather than a category where every company is raising enormous amounts.
Is climate tech still mostly an early-stage startup market?
Climate tech currently has an early-stage-heavy company pipeline, while most of the money goes to companies that have already moved beyond it.
Among deals where we could identify the stage, Seed and Series A accounted for 70% of transactions. Seed produced 342 rounds and Series A another 265.
Capital points in the opposite direction. Those early-stage rounds captured only 23.1% of classified dollars. The remaining 76.9% went into later-stage or growth financings.
Cheque size explains the gap. Median funding rises from $3.5 million at Seed to $15 million at Series A, $27.9 million at Series B and $46.5 million at Series C. Series D+ reaches a $183.5 million median.
Climate tech still creates plenty of young venture-backed companies. The financial centre of gravity sits much further along the journey.

This chart, featured in our climate tech market deck, compares the main business model options for carbon management platforms
Why do so few climate tech companies make it to Series C?
Series C is where the climate tech funding ladder really starts to thin out.
We found 265 Series A deals, 114 Series Bs and only 38 Series Cs. There are three Series B financings for every Series C financing in the period.
At the same time, the amount a company typically needs keeps rising. The median Series B was $27.9 million and the median Series C $46.5 million. By Series D+, it reaches $183.5 million.
This is also roughly where a physical climate technology has to prove much more than whether the technology itself works. Manufacturing, project economics, regulation, infrastructure, customers and offtake can all start deciding whether another large round makes sense.
The IEA's latest work on energy innovation describes a similar problem around first-of-a-kind deployment. Projects can reach a technically promising stage and still struggle with financing, infrastructure, safety requirements, commercial structures and reliable demand.
The Series B-to-C drop therefore looks like a scale-up bottleneck. Climate tech produces many investable technologies; far fewer become businesses that investors are ready to finance through expensive commercial expansion.
| Stage | Deals | Capital | Median round | Median company age |
|---|---|---|---|---|
| Seed | 342 | $1.76B | $3.5M | 2 years |
| Series A | 265 | $6.97B | $15.0M | 4 years |
| Series B | 114 | $7.39B | $27.9M | 6 years |
| Series C | 38 | $7.02B | $46.5M | 7 years |
| Series D+ | 26 | $6.95B | $183.5M | 9 years |
| Growth Equity | 82 | $7.77B | $44.3M | 8 years |
| Unknown | 135 | $1.66B | $3.5M | — |
How old are climate tech companies before investors write big checks?
Climate tech companies usually spend several years developing before very large rounds become realistic.
Across the deals where we could establish the founding year, the median company was four years old when it raised.
The progression by stage is unusually clean. Seed companies had a median age of two years, Series A companies four, Series B companies six, Series C companies seven and Series D+ companies nine.
Round size follows the same pattern. Companies raising below $5 million had a median age of three years, compared with six years for companies raising more than $50 million.
Age itself does not unlock funding. Bigger climate tech rounds generally appear after companies have had time to accumulate technical results, customers, manufacturing plans, regulatory progress or physical assets that justify a much larger commitment.
The recent Pacific Fusion story is a useful example of what investors increasingly want to see. The company has been releasing funding against technical milestones, recently reported progress on its pulsed-power hardware and has now broken ground on its New Mexico facility. Capital is following measurable execution.

This chart, featured in our climate tech market deck, breaks down market revenue by customer segment in the climate tech market
Are new climate tech startups still getting funded today?
New climate tech startups are still getting funded, but established companies take the overwhelming majority of the money.
We identified 259 first financings, representing 25.8% of all deals. Those companies raised $3.91 billion.
Follow-on rounds accounted for 736 financings and $35.59 billion. In dollar terms, that gives previously financed companies about 90% of the market.
The difference also appears in the typical cheque. A first financing had a median size of $3.11 million, compared with $14.55 million for a follow-on.
The latest broader energy data points in the same direction without suggesting that company formation has stopped. The IEA counted more than 320 energy startups raising their first funding in 2025, even while overall energy-tech venture investment declined.
The pipeline is still producing new companies these days. Most of the capital is being reserved for businesses that have already passed an earlier financing test.
Does corporate money actually matter in climate tech?
Corporate and strategic investors become much more important as climate tech companies mature.
At least one strategic investor appeared in 34.7% of the financings we studied. At Seed, strategic participation was only 19%. It rose to 42.6% at Series A, 55.3% at both Series B and Series C, and 69.2% at Series D+.
Strategically backed rounds were also much larger, with a $15 million median versus $7.35 million where no strategic investor was identified.
CFS shows what that relationship can become. Eni has been a shareholder since 2018 and later signed an agreement worth more than $1 billion to purchase power from CFS's planned first ARC plant. More recently, Hyundai Motor Group joined CFS's latest $1 billion financing as the companies began exploring collaboration around future ARC plants.
For companies trying to build power plants, manufacturing capacity or large industrial systems, a corporate investor can bring much more than cash. Customers, suppliers, technical partnerships and future offtake can all become part of the same relationship.
That helps explain why strategic participation rises so sharply after Seed.

This chart, featured in our climate tech market deck, shows how personal carbon tracking app technology has evolved over time
Which climate tech investors keep coming back?
Climate tech has hundreds of lead investors, but a smaller group keeps reappearing across the market.
After normalizing obvious naming variations, we found roughly 726 unique disclosed lead investors. Around 165 led or co-led more than one transaction, and repeat leads appeared in roughly half of all deals where a lead was publicly identifiable.
Prelude Ventures appeared most often, with nine led or co-led financings. Lowercarbon Capital appeared seven times. Breakthrough Energy Ventures, At One Ventures, HV Capital, 2150 and Transition VC each appeared six times.
Round count does not tell the whole story. General Catalyst appears only five times in this ranking, but those rounds total almost $955 million because it led Pacific Fusion's unusually large financing. Transition VC's six deals total only $18.3 million because it operates much further down the funding ladder.
Climate tech investing therefore has a fairly broad cast of investors rather than a tiny closed club. What changes dramatically is the type of investor able or willing to stay involved once round sizes reach tens or hundreds of millions.
| Lead investor | Led/co-led deals | Combined size of those rounds |
|---|---|---|
| Prelude Ventures | 9 | $396.9M |
| Lowercarbon Capital | 7 | $319.8M |
| Breakthrough Energy Ventures | 6 | $205.7M |
| At One Ventures | 6 | $115.6M |
| HV Capital | 6 | $114.1M |
| 2150 | 6 | $101.7M |
| Transition VC | 6 | $18.3M |
| General Catalyst | 5 | $954.9M |
| Giant Ventures | 5 | $140.0M |
| World Fund | 5 | $136.6M |
| Energy Impact Partners | 5 | $114.2M |
| Clean Energy Ventures | 5 | $50.2M |
Is North America taking all the big climate tech rounds?
North America currently dominates climate tech scale financing, while Europe produces more funded companies and more deals.
Europe accounted for 474 financings, or 47.3% of our total, compared with 348 in North America. Yet North America attracted $23.54 billion against Europe's $10.12 billion.
The median round was $15 million in North America and $8.2 million in Europe. We also counted 80 North American rounds above $50 million, twice the European total.
Recent financings make the difference easy to see. CFS, Valar Atomics, Base Power and Form Energy have all accessed very large amounts of private capital in North America, while Pacific Fusion is currently turning a $900 million-plus financing into a large U.S. demonstration and manufacturing site.
Europe's climate tech ecosystem is much stronger in breadth than the dollar totals alone suggest. Its weaker spot is the frequency of very large private rounds.
The IEA's 2026 work still places Europe alongside North America and China as one of the main centres of energy innovation, but it also notes the unusually deep U.S. venture market. Our numbers suggest that advantage becomes especially visible when companies need scale capital.

In our climate tech market deck, we identify pain points entrepreneurs should prioritize
Where does climate tech funding basically disappear?
Some climate tech categories have plenty of Seed and Series A activity but almost no conventional late-stage ladder.
Carbon Removal had 32 Seed rounds and 30 Series As, then only five Series Bs and one Series C. We found no Series D+ financing in the category.
Building Decarbonization had 42 Seed deals, 21 Series As and 15 Series Bs, but only two Series Cs and again no Series D+.
Climate Adaptation was thinner still, with 15 Seed rounds, 13 Series As, nine Series Bs and one Series C. There were no Series D+ or Growth Equity financings.
Some mature companies raise under labels other than a conventional Series D, so those figures should not be read as a literal survival curve. Still, the absence is hard to ignore.
As seen above, the whole market already narrows heavily after Series B. These three categories show where that problem becomes particularly severe: investors are willing to finance experimentation and early commercialization, but we see very few companies progressing through a conventional late-stage venture sequence.
Are the huge monthly climate tech funding numbers actually useful?
Monthly climate tech funding totals can be wildly misleading when two or three large financings land together.
The clearest example is the market's biggest month by dollars. It produced $3.44 billion of recorded capital, with Base Power, Valar Atomics and Form Energy alone accounting for roughly 80% of the total.
The busiest month by deal count looked very different. It produced 75 transactions, nearly three times the median completed month, but it was not the capital record.
Across completed months in the observation period, the median was 27.5 financings and $934 million of capital. Average capital was higher at $1.23 billion because the largest rounds pull the mean upward.
When climate tech funding suddenly appears to jump or collapse, we first look at how many companies actually raised, how large the median financing was and whether one or two companies explain the change. Headline dollars by themselves are simply too volatile in this market.

This chart, featured in our climate tech market deck, breaks down revenue by geography across Europe, Asia, North America, Africa, and South America in the climate tech market
What should we actually take away from climate tech funding today?
Climate tech is a broad funding market with a much narrower scale-capital layer.
We found 900 funded companies, which makes this a substantial startup ecosystem. At the same time, most companies raise relatively conventional venture rounds: the median deal is $10 million and roughly two thirds of quantified financings are below $20 million.
The spectacular part of the market begins further up. Energy systems, mobility, nuclear, fusion and storage companies can now raise hundreds of millions or even $1 billion when investors believe the technology and commercial plan are ready for physical scale. Recent financings from CFS, Valar Atomics, Form Energy and Base Power show that this upper layer remains very active today even as broader energy venture funding has become tougher.
The harder part is getting there. Climate tech has 265 Series A deals but only 38 Series Cs, and several categories barely develop a conventional late-stage population at all. Bigger checks also arrive later: companies raising more than $50 million have a median age twice that of companies raising less than $5 million.
Strategic investors become increasingly important along the way, while North America has become the clearest centre for very large private rounds. Europe remains an important company-formation and deal market, but the scale-financing gap is substantial.
The clearest picture is a market with plenty of companies at the bottom and extraordinary amounts of capital available at the top. The difficult stretch sits in between: turning a promising climate technology into the kind of industrial business that can justify repeated $50 million, $100 million or billion-dollar commitments.
OUR METHODOLOGY
This analysis tracks climate tech fundraising announced between 1 January 2024 and 21 September 2026, with the aim of producing a quantitative view of how the market is actually funded rather than reproducing the headline totals of a single funding database.
We included qualifying private-company equity financings that fell inside the research period and our climate tech definition. Debt, grants, loans, public offerings and financings where the equity component could not be separated reliably were excluded from the equity dataset. Where a transaction combined several forms of capital, we used the identifiable equity component whenever the available evidence allowed it.
Climate tech had to be the company's core business at the time of financing rather than a peripheral product, future ambition or loose sustainability angle. Borderline companies were excluded rather than forced into the dataset.
Each distinct financing was treated as a separate deal, while duplicate reports of the same round were consolidated. Extensions, additional closes and tranches were reviewed individually because two announcements by the same company do not necessarily represent two economically separate financings.
Dates, funding stages, investors, financing history, company age and unusual transaction structures were recorded only when supported by public evidence. We did not infer a Series A, B or C from round size, assume that a prominent investor was the lead, estimate genuinely undisclosed deal values or create an exact date where sources only established a broader period.
We also kept uncertainty visible. Approximate currency conversions remain approximate, lower-bound announcements remain lower bounds, and maximum commitments are not treated as if every dollar had necessarily been funded immediately. Pacific Fusion is a good example: its more than $900 million Series A was committed upfront but is released against predefined milestones.
After building the dataset, we ran a separate quality-control pass focused on missed transactions, date boundaries, duplicate announcements, equity eligibility, market eligibility and unusual funding structures. We also compared financing totals with the underlying company population so repeat rounds did not get mistaken for additional companies.
Key sources used for the market context and company-level checks include the International Energy Agency's State of Energy Innovation 2026, the International Energy Agency's State of Energy Innovation 2025, Commonwealth Fusion Systems on its latest $1 billion financing, Pacific Fusion on its $900 million-plus Series A structure, Valar Atomics on its $1 billion Series B, Form Energy's newsroom, AVATR's Series C announcement, and Base Power's press page.
The guiding principle throughout was simple: where public evidence could not establish something reliably, we preserved that uncertainty rather than making the dataset look cleaner than the sources justified.

This chart, featured in our climate tech market deck, illustrates yearly VC funding for climate tech startups