All the funding deals in the climate tech market
Last updated: 13 July 2026
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The climate tech market is attracting major investment across clean energy, carbon removal, industrial decarbonization, climate adaptation and sustainable mobility.
We conducted deep research and collected 102 climate tech funding deals announced between 2024 and the second quarter of 2026.
We refresh this climate tech market page very often to add newly announced funding rounds and improve existing information.
And if you want to better understand this new industry, you should get our beautiful slides covering the climate tech market.
Insights
- The 102 climate tech funding deals in this list represent more than $9.8 billion of announced capital between 2024 and Q2 2026.
- Climate tech funding increased sharply in this dataset, from about $2.3 billion in 2024 to more than $5.7 billion in 2025.
- Energy generation, energy storage and grid infrastructure received the largest climate tech funding rounds, especially nuclear, fusion, geothermal and battery companies.
- Commonwealth Fusion Systems raised $863 million in 2025, making the company the largest climate tech funding deal included in this research.
- Nuclear and fusion companies accounted for several of the largest climate tech rounds, including X-energy, Radiant, Helion Energy and Inertia Enterprises.
- Carbon removal remained active, but most carbon removal funding rounds were smaller than the largest energy infrastructure and advanced power deals.
- Several climate tech companies raised capital more than once during the period, including Aira, Exowatt, Fervo Energy, Quilt, Type One Energy and Varaha.
- Grid capacity became a major climate tech investment theme as artificial intelligence data centers increased demand for power equipment, storage and grid software.
- Climate adaptation funding remained smaller than clean energy funding, although wildfire intelligence, flood management and physical climate risk tools attracted growing investor interest.
- The climate tech market covers both capital-intensive hardware companies and software platforms, creating a wide range of funding needs and deal sizes.
This chart, featured in our climate tech market deck, illustrates yearly VC funding for climate tech startups
Summary table of the funding deals for the climate tech market since 2024
We define the climate tech market as technologies whose main purpose is to reduce greenhouse gas emissions or help people, assets and ecosystems adapt to the impacts of climate change.
We include solutions across energy, mobility, buildings, industry, food and land use, carbon removal, and the digital and financial tools that directly enable these mitigation or adaptation outcomes.
We exclude broad ESG and sustainability tools, general environmental or social impact solutions without a clear climate focus, and consumer products whose climate impact is indirect, marginal or mainly marketing-driven.
We focused exclusively on pure players, defined as companies with at least 70–80% of their business directly tied to the climate tech market.
Our analysis has been done at a global level with a minimum funding threshold of $300k.
You can also read our detailed analysis to understand how funding activity in the climate tech market has evolved recently.
If you want a longer-term view, we also have a study of how funding activity in the climate tech market has changed over the years.
Also, you should know that we have a dedicated page, updated weekly, with all the latest fundraising deals in the climate tech market.
| Name | What they do | Amount in $ | Quarter | Source(s) |
|---|---|---|---|---|
| Endurance Energy | Develops offshore geothermal systems that produce clean power from deep-ocean heat. | $54.0M | Q2 2026 | Source |
| GPS Renewables | Develops compressed biogas and waste-to-renewable-gas infrastructure. | $74.3M | Q2 2026 | Source |
| Thea Energy | Develops stellarator fusion power plants for clean electricity generation. | $100.0M | Q2 2026 | Source |
| CREW Carbon | Uses wastewater infrastructure to remove carbon and increase water alkalinity. | $19.0M | Q2 2026 | Source |
| Moment Energy | Repurposes used electric vehicle batteries into stationary energy storage systems. | $40.0M | Q2 2026 | Source |
| Panthalassa | Develops wave-powered computing systems and other ocean energy technologies. | $140.0M | Q2 2026 | Source |
| Gigablue | Removes carbon from the ocean using microalgae and controlled carbon sinking. | $20.0M | Q2 2026 | Source |
| Focused Energy | Develops laser-driven fusion systems for future clean power production. | $240.0M | Q2 2026 | Source |
| D-CRBN | Uses electrified plasma technology to convert industrial carbon dioxide into useful materials. | $20.3M | Q2 2026 | Source |
| GridCARE | Uses AI to identify and accelerate available grid capacity for large power users. | $64.0M | Q2 2026 | Source |
| ECOncrete | Produces marine infrastructure materials that support coastal protection and biodiversity. | $14.0M | Q2 2026 | Source |
| Reel | Helps businesses buy renewable electricity and manage power purchase agreements. | $17.6M | Q2 2026 | Source |
| DISA Technologies | Develops cleaner mineral processing, resource recovery and uranium-site remediation technologies. | $33.0M | Q2 2026 | Source |
| CMBlu Energy | Develops organic solid-flow batteries for long-duration energy storage. | $58.5M | Q2 2026 | Source |
| Living Carbon | Develops reforestation projects that remove carbon and restore degraded land. | $13.0M | Q2 2026 | Source |
| Satellites on Fire | Uses AI, satellites and video feeds to detect and monitor wildfires. | $2.7M | Q2 2026 | Source |
| EnerVenue | Builds lithium-free nickel-hydrogen batteries for grid-scale energy storage. | $300.0M | Q1 2026 | Source |
| Halcyon | Provides AI energy data that helps companies secure power capacity faster. | $21.0M | Q1 2026 | Source |
| Scalvy | Develops distributed power systems for data centers, mobility and grid infrastructure. | $13.9M | Q1 2026 | Source |
| Zevero | Helps companies measure, report and reduce greenhouse gas emissions. | $7.0M | Q1 2026 | Source |
| Cocoon Carbon | Converts steelmaking slag into lower-carbon materials for concrete production. | $15.0M | Q1 2026 | Source |
| RockRose Risk | Provides insurance brokerage and underwriting services for properties exposed to wildfires. | $9.0M | Q1 2026 | Source |
| Newtrace | Develops advanced electrodes and electrolyzers for lower-cost green hydrogen production. | $6.3M | Q1 2026 | Source |
| HELIUP | Makes lightweight solar panels for rooftops that cannot support conventional modules. | $18.6M | Q1 2026 | Source |
| Photoncycle | Develops hydrogen-based home energy storage that uses surplus solar electricity. | $17.4M | Q1 2026 | Source |
| RIFT | Develops iron-fuel combustion systems for fossil-free industrial heat. | $96.5M | Q1 2026 | Source |
| PlasmaLeap Technologies | Uses plasma technology to produce ammonia and nitric acid without direct emissions. | $20.0M | Q1 2026 | Source |
| DG Matrix | Develops solid-state transformers and power electronics for grids and data centers. | $60.0M | Q1 2026 | Source |
| Heron Power | Builds solid-state transformers and advanced equipment for modern electricity grids. | $140.0M | Q1 2026 | Source |
| Inertia Enterprises | Develops laser-driven fusion systems for future clean electricity production. | $450.0M | Q1 2026 | Source |
| Lunar Energy | Builds home batteries and software that connects households into virtual power plants. | $232.0M | Q1 2026 | Source |
| Varaha | Develops agricultural carbon removal projects and verified carbon credits. | $20.0M | Q1 2026 | Source |
| Forerunner | Provides government software for flood management, resilience planning and permits. | $26.3M | Q1 2026 | Source |
| Type One Energy | Develops stellarator fusion technology for commercial clean power generation. | $87.0M | Q1 2026 | Source |
| Hydrosat | Provides thermal satellite data for agriculture, drought monitoring and water management. | $60.0M | Q1 2026 | Source |
| JetZero | Develops blended-wing aircraft designed to reduce aviation fuel consumption. | $175.0M | Q1 2026 | Source |
| Antares | Develops advanced nuclear microreactors for reliable low-carbon power. | $96.0M | Q4 2025 | Source |
| Last Energy | Develops small modular nuclear plants for reliable low-carbon electricity. | $100.0M | Q4 2025 | Source |
| Fervo Energy | Develops enhanced geothermal power using advanced drilling and underground sensing. | $462.0M | Q4 2025 | Source |
| Quilt | Develops smart residential heat pumps for efficient home heating and cooling. | $20.0M | Q4 2025 | Source |
| Overstory | Uses AI to monitor vegetation, power lines and wildfire risks. | $43.0M | Q4 2025 | Source |
| X-energy | Develops advanced nuclear reactors and fuel for reliable low-carbon electricity. | $700.0M | Q4 2025 | Source |
| Endolith | Uses AI and microorganisms to recover critical minerals with less environmental damage. | $13.5M | Q4 2025 | Source |
| Nanoramic | Develops advanced battery materials and battery components without PFAS chemicals. | $54.0M | Q4 2025 | Source |
| Gridware | Monitors power grids to detect outages, equipment failures and wildfire risks. | $55.0M | Q4 2025 | Source |
| Harbinger | Develops electric and hybrid platforms for medium-duty commercial vehicles. | $160.0M | Q4 2025 | Source |
| Exowatt | Develops dispatchable solar power systems for data centers and industrial facilities. | $50.0M | Q4 2025 | Source |
| Stardust Solutions | Researches reflective particles that could reduce the amount of sunlight reaching Earth. | $60.0M | Q4 2025 | Source |
| Class 3 | Models physical climate risks affecting buildings and infrastructure. | $3.5M | Q4 2025 | Source |
| Electroflow Technologies | Extracts lithium from brines and converts it into battery cathode materials. | $10.0M | Q4 2025 | Source |
| Factor2 Energy | Produces geothermal electricity using carbon dioxide stored underground. | $9.1M | Q3 2025 | Source |
| Nitricity | Produces lower-emission nitrogen fertilizer using electricity and agricultural waste. | $50.0M | Q3 2025 | Source |
| Equilibrium | Develops carbon removal projects using forests, farms, mangroves and biochar. | $3.0M | Q3 2025 | Source |
| Torus | Builds power systems combining flywheels, batteries and energy management software. | $200.0M | Q3 2025 | Source |
| VEMO | Provides electric vehicles, charging infrastructure and fleet technology in Mexico. | $250.0M | Q3 2025 | Source |
| Aira | Provides residential heat pumps and home heating electrification services. | $174.0M | Q3 2025 | Source |
| Commonwealth Fusion Systems | Develops tokamak fusion reactors for commercial clean electricity production. | $863.0M | Q3 2025 | Source |
| Aalo Atomics | Develops factory-built nuclear microreactors for data centers and other power users. | $100.0M | Q3 2025 | Source |
| Group14 Technologies | Produces silicon battery materials for electric vehicles and energy storage. | $463.0M | Q3 2025 | Source |
| Equatic | Removes ocean carbon and produces green hydrogen through seawater electrolysis. | $11.6M | Q3 2025 | Source |
| Climeworks | Builds direct air capture systems that permanently remove carbon dioxide. | $162.0M | Q3 2025 | Source |
| Dexter Energy | Uses AI to forecast renewable generation and improve electricity trading. | $27.1M | Q3 2025 | Source |
| CuspAI | Uses AI to discover materials for carbon capture and clean energy systems. | $100.0M | Q2 2025 | Source |
| Treefera | Uses AI and geospatial data to monitor nature and supply-chain risks. | $30.0M | Q2 2025 | Source |
| Radiant | Develops portable nuclear microreactors designed to replace diesel generators. | $465.0M | Q2/Q4 2025 | Source 1, Source 2 |
| Base Power | Installs home batteries and connects them into a virtual power plant. | $200.0M | Q2 2025 | Source |
| Terra CO2 | Produces lower-carbon materials that replace part of the cement used in concrete. | $124.5M | Q1/Q3 2025 | Source 1, Source 2 |
| Vema Hydrogen | Develops technology for lower-cost clean hydrogen production. | $13.0M | Q1 2025 | Source |
| Helion Energy | Develops field-reversed fusion reactors for clean electricity generation. | $425.0M | Q1 2025 | Source |
| Crux | Provides tax-credit transaction software for clean energy and industrial projects. | $50.0M | Q1 2025 | Source |
| Aira | Provides residential heat pumps that replace fossil-fuel home heating systems. | $158.2M | Q1 2024 | Source |
| H2 Green Steel / Stegra | Develops large-scale steel production using hydrogen instead of fossil fuels. | $327.0M | Q1 2024 | Source |
| Captura | Develops direct ocean capture technology that removes carbon dioxide from seawater. | $21.5M | Q1 2024 | Source |
| Cultivo | Develops and finances nature-based carbon removal and ecosystem restoration projects. | $14.0M | Q1 2024 | Source |
| Boston Metal | Uses molten oxide electrolysis to produce steel and metals with fewer emissions. | $20.0M | Q1 2024 | Source |
| Avnos | Develops direct air capture systems that remove carbon while producing water. | $36.0M | Q1 2024 | Source |
| Varaha | Develops carbon credits through regenerative agriculture, forestry and biochar projects. | $8.7M | Q1 2024 | Source |
| Antora Energy | Builds thermal batteries that provide low-carbon heat and electricity for industry. | $150.0M | Q1 2024 | Source |
| Fervo Energy | Develops enhanced geothermal power using horizontal drilling and advanced underground monitoring. | $244.0M | Q1 2024 | Source |
| Furno Materials | Develops modular cement production systems designed to reduce manufacturing emissions. | $6.5M | Q1 2024 | Source |
| HysetCo | Provides hydrogen vehicles, refueling infrastructure and fleet management services. | $217.0M | Q2 2024 | Source |
| Quilt | Develops smart residential heat pumps for efficient home heating and cooling. | $33.0M | Q2 2024 | Source |
| Exowatt | Develops renewable power and thermal storage systems for energy-intensive data centers. | $20.0M | Q2 2024 | Source |
| Zanskar | Uses AI to discover and develop geothermal energy resources. | $30.0M | Q2 2024 | Source |
| ArkeaBio | Develops vaccines that reduce methane emissions from livestock. | $26.5M | Q2 2024 | Source |
| XGS Energy | Develops water-independent geothermal systems for clean heat and electricity. | $20.0M | Q2 2024 | Source |
| Xcimer Energy | Develops high-energy laser systems for commercial fusion power. | $100.0M | Q2 2024 | Source |
| Climate X | Helps financial institutions measure and price physical climate risks. | $18.0M | Q2 2024 | Source |
| 44.01 | Permanently stores captured carbon dioxide by turning it into underground rock. | $37.0M | Q3 2024 | Source |
| itselectric | Installs curbside electric vehicle chargers in dense urban neighborhoods. | $6.5M | Q3 2024 | Source |
| Peak Energy | Develops sodium-ion batteries for low-cost grid-scale energy storage. | $55.0M | Q3 2024 | Source |
| Applied Carbon | Uses mobile machines to produce biochar and improve agricultural soil. | $21.5M | Q3 2024 | Source |
| Type One Energy | Develops stellarator-based fusion systems for commercial clean power. | $82.4M | Q3 2024 | Source |
| Graphyte | Permanently removes carbon using dried and sealed biomass materials. | $30.0M | Q3 2024 | Source |
| Twelve | Converts captured carbon dioxide into aviation fuel, chemicals and other products. | $600.0M | Q3 2024 | Source |
| LuxWall | Produces vacuum-insulated windows that reduce building energy consumption. | $51.0M | Q4 2024 | Source |
| Klim | Helps farmers adopt regenerative practices and earn climate-related revenue. | $22.0M | Q4 2024 | Source |
| Vaulted Deep | Stores organic waste underground to provide durable carbon removal. | $32.3M | Q4 2024 | Source |
| AMPECO | Provides software for managing electric vehicle charging networks. | $26.0M | Q4 2024 | Source |
| Wherobots | Provides cloud software for geospatial data and climate intelligence. | $21.5M | Q4 2024 | Source |
| Terradot | Removes carbon dioxide by spreading reactive crushed rock on land. | $58.2M | Q4 2024 | Source |
| Sunairio | Uses AI to model weather and climate risks for energy grids. | $6.4M | Q4 2024 | Source |
This market map, featured in our climate tech market deck, highlights top companies and startups in the climate tech market
Related blog posts
- What has changed recently in the climate tech market?
- The latest news in the climate tech market
- How big is the climate tech market today?
- What are the latest funding developments in climate tech?
