Climate Tech Startup Funding 2025-2026

What are all the funding deals in the climate tech market from July 2025 to June 2026?

The table below lists every disclosed equity round raised by pure-play climate tech companies between July 2025 and June 2026. 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.

Each row shows the company, what it does, its category, the deal date, the funding stage, the round size, the region, the main investors, and the announcement source. For a wider view of how this market is developing, we cover it in our Climate Tech market report.

How active has fundraising been in the climate tech market?

As of June 2026, fundraising in the climate tech market has been active but uneven. Over the past 12 months, companies raised 39 disclosed equity rounds and $4.256B combined, which works out to 3.25 deals per month.

The climate tech market had consistent public deal activity across the period. The median month had 3.0 disclosed deals, which suggests that fundraising was not limited to a single short burst.

The dollar picture is much less smooth. Average capital raised per month was $354.6M, but that figure is pulled upward by large clean energy, nuclear, fusion, mobility, and battery-materials rounds.

Removing rounds above $50M changes the story completely. Capital falls from $4.256B to $355.8M, showing that megarounds are not an adjustment to the climate tech market; they are the central funding signal.

If you want to go deeper on the companies and categories behind this activity, see our full climate tech market report.

How concentrated has fundraising been in the climate tech market?

As of June 2026, fundraising in the climate tech market is highly concentrated at the top. Over the past 12 months, the largest deal accounts for 20.28% of all disclosed capital, the top 3 reach 47.61%, and the top 5 reach 59.12%.

The top 10 deals account for 78.43% of the total. That means the headline size of the climate tech market is mostly a story about a small number of large infrastructure-scale companies.

This concentration also explains the gap between average and median round size. The average round was $109.1M, while the median round was $33.0M, making the median a better guide to normal visible financing.

For readers comparing markets, this matters. A $4.256B total does not mean the whole climate tech market is broadly liquid; it means a few companies cleared very large financing thresholds.

How much of the climate tech funding signal is driven by outliers?

As of June 2026, much of the climate tech funding signal is driven by outliers. Over the past 12 months, 18 of 39 disclosed deals were above $50M, and 10 deals were above $100M.

The climate tech market has a clear megaround shape. Rounds above $50M represent 46.15% of deal count, while the total capital outside those rounds is only $355.8M.

Fusion and advanced nuclear are a major part of the outlier story. Commonwealth Fusion Systems, X-energy, Focused Energy, and Thea Energy together account for $1.903B, or 44.72% of all capital in the dataset.

This means climate tech funding headlines should be read carefully. The market is not one evenly rising tide; it is a collection of specific high-conviction infrastructure bets.

Is the climate tech market broad with many targets, or narrow with few fundable companies?

As of June 2026, the climate tech market is broad by category but narrow by capital allocation. Over the past 12 months, the dataset includes 39 unique companies across six categories, but most dollars still flow into a limited set of large energy and infrastructure companies.

The breadth is real. The sample includes clean energy systems, low-carbon mobility, building decarbonization, industrial climate tech, adaptation solutions, and carbon removal platforms.

The capital distribution is much narrower. Clean Energy Systems alone captures 69.32% of total capital, while the other five categories share the remaining 30.68%.

This is why the climate tech market should not be read as a single uniform sector. It is a broad climate transition umbrella, but investor conviction is concentrated where decarbonization meets power, storage, grid, mobility, and industrial infrastructure.

Is climate tech mostly an early-stage formation market or a late-stage scaling market?

As of June 2026, the climate tech market looks like a scale-up market with continued formation underneath. Over the past 12 months, Seed through Series B rounds represented 61.54% of disclosed deals, but only 47.49% of disclosed capital.

Later and unknown stages represented fewer deals but more dollars. Series C, Series D+, Growth Equity, and Unknown rounds captured 52.51% of disclosed capital across 15 deals.

Series B was the decisive stage by capital. It represented 9 deals and $1.520B, or 35.72% of all capital raised in the climate tech market.

Seed was visible but economically small. Four seed rounds produced only $24.7M, or 0.58% of total capital, so company formation continued but did not drive market momentum.

For more detail on how stage dynamics shape this market, see our deeper analysis of the climate tech market.

Which categories attract the most investor attention in climate tech?

As of June 2026, Clean Energy Systems attracts the most investor attention in the climate tech market. Over the past 12 months, the category produced 16 deals and $2.950B, equal to 41.03% of deals and 69.32% of capital.

Industrial Climate Tech ranks second by deal count, with 8 deals and 20.51% of activity. But it captured only $326.3M, or 7.67% of capital, which shows a broad pipeline without many large rollout rounds.

Climate Adaptation Solutions produced 5 deals, while Low Carbon Mobility and Carbon Removal Platforms each produced 4. Building Decarbonization Tech was the smallest category, with only 2 qualifying deals.

The category pattern is clear. Investors are willing to fund many climate themes, but the largest checks go to companies tied to energy capacity, grid reliability, clean firm power, batteries, and infrastructure bottlenecks.

Which categories attract disproportionately large checks in the climate tech market?

As of June 2026, Clean Energy Systems and Low Carbon Mobility attract disproportionately large checks in the climate tech market. Over the past 12 months, both categories captured a higher share of dollars than their share of deals.

Clean Energy Systems has a capital-share to deal-share ratio of 1.69. That means its 41.03% share of deals turns into 69.32% of capital, a strong signal of larger-than-average financing rounds.

Low Carbon Mobility also over-indexes, with a ratio of 1.46. Only 4 deals generated $639.0M, because EV fleets, commercial vehicles, battery platforms, and aircraft efficiency require large development and deployment budgets.

The other categories under-index on check size. Industrial Climate Tech has a ratio of 0.37, Climate Adaptation Solutions 0.21, Carbon Removal Platforms 0.43, and Building Decarbonization Tech 0.18.

Which geographies matter most for fundraising in the climate tech market?

As of June 2026, North America matters most for climate tech fundraising by both deals and dollars. Over the past 12 months, the region captured 22 deals and $3.219B, equal to 56.41% of deals and 75.65% of capital.

Europe was the second-largest region. It produced 11 deals and $680.0M, which equals 28.21% of deals and 15.98% of disclosed capital.

Asia-Pacific contributed 4 deals and $103.6M. Its 10.26% deal share became only 2.43% of capital, showing that its visible public equity rounds were mostly smaller than North American and European rounds.

Latin America produced only 2 deals, but VEMO’s $250M round made the region meaningful by dollars. Latin America captured 5.94% of disclosed capital despite representing only 5.13% of deals.

For more context on where the strongest funding signals are emerging, see our market report covering climate tech geographies.

Is the climate tech opportunity set broad or concentrated in one hub?

As of June 2026, the climate tech opportunity set is global in theory but concentrated in practice. Over the past 12 months, North America and Europe together held 84.39% of disclosed deals and 91.63% of disclosed capital.

North America is the clear institutional financing hub. Its average deal size was $146.3M, and its median was $64.0M, both above the global median of $33.0M.

Europe showed meaningful breadth but less scale. Its median round size was $20.3M, which suggests a healthy pipeline but fewer very large balance-sheet rounds.

Middle East and Africa had no qualifying public equity rounds in the dataset. That should be read as an evidence gap, not proof that no climate tech activity exists in those regions.

Is climate tech a market of small experiments or scaled financings?

As of June 2026, the climate tech market is a market of scaled financings with a long tail of smaller rounds. Over the past 12 months, 18 of 39 disclosed rounds were above $50M, while only 2 were below $5M.

The middle of the distribution is thinner than expected. There were 12 deals between $5M and $20M, 7 deals between $20M and $50M, and 18 deals above $50M.

This suggests a missing-middle zone between commercial validation and infrastructure-scale growth. Many companies can raise modest technical or first-commercial capital, but fewer cross into large deployment financing.

The median round size of $33.0M is the best benchmark for normal visible climate tech financings. The $109.1M average is useful for market sizing, but less useful for understanding what a typical company raised.

If you want to stay close to the financing patterns behind these rounds, explore our full market deck on climate tech funding.

How important are follow-on rounds in the climate tech market?

As of June 2026, follow-on rounds are the dominant signal in the climate tech market. Over the past 12 months, most disclosed deals were follow-ons, while only a small number were first financings.

The first-financing rounds in the dataset were Equilibrium, Electroflow Technologies, RockRose Risk, and Satellites on Fire. Together, they show that formation continues, but it is not where most capital is concentrated.

The largest rounds were overwhelmingly follow-ons. Commonwealth Fusion Systems, X-energy, Group14 Technologies, VEMO, Focused Energy, Torus, JetZero, Climeworks, Harbinger, and Terra CO2 were all later financings.

This matters because the climate tech market rewards proof of deployment, customer demand, and infrastructure relevance. New companies can still enter, but the largest checks go to companies that have already crossed earlier validation points.

Who are the investors that appear the most in climate tech fundraising?

As of June 2026, only a limited group of investors appeared in more than one disclosed climate tech round. Over the past 12 months, repeat investors were present, but the list was not broad enough to suggest one dominant syndicate controlling the whole market.

Galvanize appeared in DISA Technologies, Quilt, and X-energy. Future Energy Ventures appeared in GridCARE and Reel, while Climate Capital appeared in Scalvy and Thea Energy.

India-centered and climate infrastructure investors also repeated. Peak XV / Surge and Avaana Capital appeared in Equilibrium and Newtrace, while Energy Impact Partners appeared in Quilt and GridCARE.

Union Square Ventures appeared in Electroflow Technologies and Forerunner, Fifty Years appeared in Electroflow Technologies and Gridware, and Barclays Climate Ventures appeared in ECOncrete and CMBlu Energy.

One important caveat is that round announcements usually disclose syndicate participation, not individual investor check sizes. So repeat participation is a conviction signal, but not a precise measure of dollars committed by each investor.

We cover the investor landscape in more detail in our climate tech market report.

Who is the author of this content?

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