263 Series A climate tech investors
We list 263 Series A climate tech investors as of November 2026: 58 have an SEC filing on file and 205 were checked on the firm's own website or an official register, and the list was last checked on 9 Nov 2026. The states with the most are California (24), New York (8) and Illinois (4).
Top 5 Series A climate tech investors, ranked by recent fund activity
Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when Series A is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.
At One Ventures
Type: VC firm · HQ: Menlo Park, CA · Stages: Seed, Series A · Focus: Climate Tech, Agritech, Industrial Tech, AI · Latest activity: New deal, Sep 2026 · Fund size on file: $375M (SEC Form D, 2022)
Dated new deal in Sep 2026; $375M fund on file (SEC Form D, 2022); 57% of its observed portfolio is climate tech; backs seed, Series A; 8 named decision-makers on file.
Aramco Ventures
Type: Corporate VC · HQ: Saudi Arabia (London office) · Stages: Seed, Series A, Growth, Late stage · Focus: Climate Tech, Energy, Industrial Tech, AI · Latest activity: Portfolio news, Sep 2026 · Fund size or assets: $7.5B (own site)
Portfolio news dated Sep 2026; $7.5B on file (own site); 71% of its observed portfolio is climate tech; backs seed, Series A, growth-stage; 8 named decision-makers on file.
Toyota Ventures
Type: Corporate VC · HQ: Los Altos, CA · Stages: Seed, Series A · Focus: Climate Tech, AI, Energy, Industrial Tech · Latest activity: Portfolio news, Oct 2026 · Private fund assets: $928M (SEC Form ADV)
Portfolio news dated Oct 2026; $928M on file (SEC Form ADV); 37% of its observed portfolio is climate tech; backs seed, Series A.
Energize Ventures
Type: VC firm · HQ: Chicago, IL · Stages: Series A, Series B, Growth, Any stage · Focus: Climate Tech, Energy, AI, Industrial Tech · Latest activity: New deal, Sep 2026 · Fund size on file: $328M (SEC Form D, 2020)
Dated new deal in Sep 2026; $328M fund on file (SEC Form D, 2020); 55% of its observed portfolio is climate tech; backs Series A, Series B, growth-stage; 8 named decision-makers on file.
Longrun Capital
Type: VC firm · HQ: San Francisco, CA · Stages: Seed, Series A · Focus: Climate Tech, Industrial Tech, AI, Energy · Latest activity: New deal, Sep 2026 · Fund size on file: $22M (SEC Form D, 2026)
Dated new deal in Sep 2026; $22M fund on file (SEC Form D, 2026); 50% of its observed portfolio is climate tech; backs seed, Series A; 4 named decision-makers on file.
First 25 of 263 Series A climate tech investors
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| At One Ventures | VC firm | Menlo Park, CA | Seed, Series A | Climate Tech, Agritech, Industrial Tech, AI | New deal, Sep 2026 | $375M (SEC Form D, 2022) | 4 Nov 2026 | 8 names · Unlock |
| Aramco Ventures | Corporate VC | Saudi Arabia (London office) | Seed, Series A, Growth, Late stage | Climate Tech, Energy, Industrial Tech, AI | Portfolio news, Sep 2026 | $7.5B (own site) | 5 Nov 2026 | 8 names · Unlock |
| Toyota Ventures | Corporate VC | Los Altos, CA | Seed, Series A | Climate Tech, AI, Energy, Industrial Tech | Portfolio news, Oct 2026 | $928M (SEC Form ADV) | 5 Nov 2026 | LinkedIn page · Unlock |
| Energize Ventures | VC firm | Chicago, IL | Series A, Series B, Growth, Any stage | Climate Tech, Energy, AI, Industrial Tech | New deal, Sep 2026 | $328M (SEC Form D, 2020) | 5 Nov 2026 | 8 names · Unlock |
| Longrun Capital | VC firm | San Francisco, CA | Seed, Series A | Climate Tech, Industrial Tech, AI, Energy | New deal, Sep 2026 | $22M (SEC Form D, 2026) | 4 Nov 2026 | 4 names · Unlock |
| Energy Impact Partners | VC firm | United States (London office) | Seed, Series A, Series B, Growth | Climate Tech, Energy, AI, Cybersecurity | Portfolio news, Nov 2026 | $4.5B (own site) | 5 Nov 2026 | 8 names · Unlock |
| Clean Energy Ventures | VC firm | Boston, MA | Seed, Series A | Climate Tech, Energy, Fintech, Deep Tech | New deal, May 2026 | $306M (SEC Form D, 2022) | 5 Nov 2026 | 8 names, firm email · Unlock |
| Blackhorn Ventures | VC firm | Denver, CO | Seed, Series A | Climate Tech, AI, Energy, Developer Tools | New deal, Jul 2026 | $250M (SEC Form D, 2022) | 4 Nov 2026 | 8 names · Unlock |
| Innovation Industries | VC firm | Amsterdam, Netherlands | Series A, Series B, Growth | Climate Tech, Deep Tech, AI, Healthtech | New fund, Oct 2026 | €1.0B (own site) | 7 Nov 2026 | 4 names, firm email · Unlock |
| Seraphim Space | VC firm | London, United Kingdom | Seed, Series A, Growth | Climate Tech, Space, Mobility, Deep Tech | New fund, Oct 2026 | $1.0B (own site) | 4 Nov 2026 | 8 names · Unlock |
| UVC Partners | VC firm | Garching, Germany | Pre-seed, Seed, Series A | Climate Tech, Deep Tech, Mobility, AI | New deal, Sep 2026 | €800M (own site) | 7 Nov 2026 | 4 names, firm email · Unlock |
| Extantia | VC firm | Berlin, Germany | Seed, Series A | Climate Tech, Energy, Industrial Tech, Agritech | New deal, Aug 2026 | €204M (own site) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Overlap Holdings | VC firm | Hicksville, NY | Seed, Series A, Series B | Climate Tech, AI, Energy, Healthtech | New fund, Oct 2026 | $16M (SEC Form D, 2023) | 4 Nov 2026 | 8 names · Unlock |
| Rubio Impact Ventures | VC firm | Amsterdam, Netherlands | Seed, Series A | Climate Tech, Impact, Energy, Food and Beverage | New fund, Sep 2026 | €226M (own site) | 7 Nov 2026 | firm email · Unlock |
| PXN Ventures | Fund manager | Manchester, United Kingdom | Pre-seed, Seed, Series A, Growth | Climate Tech, Generalist, SaaS, Deep Tech | Portfolio news, Nov 2026 | £760M (own site) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Clean Growth Fund | VC firm | United Kingdom | Seed, Series A | Climate Tech, Energy, Mobility, Industrial Tech | New fund, Sep 2026 | 4 Nov 2026 | 8 names, firm email · Unlock | |
| eCAPITAL | VC firm | Münster, Germany | Seed, Series A, Series B | Climate Tech, Deep Tech, AI, Cybersecurity | Portfolio news, Sep 2026 | €400M (own site) | 7 Nov 2026 | 5 names · Unlock |
| Mercia Asset Management | Fund manager | Henley-in-Arden, United Kingdom | Seed, Series A, Growth | Climate Tech, Healthtech, Future of Work, AI | Portfolio news, Oct 2026 | £400M (own site) | 4 Nov 2026 | 8 names, firm email · Unlock |
| The FSE Group | Fund manager | Fleet, United Kingdom | Seed, Series A, Growth | Climate Tech, Generalist, Healthtech, SaaS | Portfolio news, Sep 2026 | £395M (own site) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Brightlands Venture Partners (BVP) | VC firm | Geleen, Netherlands | Seed, Series A | Climate Tech, Healthtech, Agritech, Food and Beverage | Portfolio news, Sep 2026 | €120M (own site) | 7 Nov 2026 | 5 names, firm email · Unlock |
| ACF Investors | VC firm | Sheffield, United Kingdom | Seed, Series A | Climate Tech, Fintech, Generalist, Consumer | Portfolio news, Oct 2026 | £100M (own site) | 4 Nov 2026 | 7 names, firm email · Unlock |
| Angelor | VC firm | Lyon, France | Seed, Series A | Climate Tech, Healthtech, Biotech, Medtech | New deal, Sep 2026 | €100M (own site) | 7 Nov 2026 | 1 name · Unlock |
| M13 | VC firm | Los Angeles, CA | Seed, Series A | Climate Tech, AI, Healthtech, Ecommerce | New fund, Sep 2026 | $400M (SEC Form D, 2021) | 4 Nov 2026 | 8 names · Unlock |
| Endeit Capital | VC firm | Amsterdam, Netherlands | Series A, Series B, Growth | Climate Tech, Fintech, AI, Cybersecurity | New deal, Oct 2026 | €430M (own site) | 7 Nov 2026 | 3 names, firm email · Unlock |
| Khosla Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Growth | Climate Tech, AI, Consumer, B2B | New fund, Aug 2026 | $1.9B (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
You are seeing 25 of 263. The full list adds 238 more investors and 1,177 named decision-makers.
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How these 263 break down
By region
| Region | On this list | Share |
|---|---|---|
| United States | 60 | 23% |
| United Kingdom | 52 | 20% |
| Europe | 149 | 57% |
By US state
| US state | On this list | Share |
|---|---|---|
| California | 24 | 9% |
| New York | 8 | 3% |
| Illinois | 4 | 2% |
| Colorado | 4 | 2% |
| Massachusetts | 3 | 1% |
| New Jersey | 3 | 1% |
| Texas | 2 | 1% |
By European country
| European country | On this list | Share |
|---|---|---|
| France | 39 | 15% |
| Netherlands | 28 | 11% |
| Germany | 20 | 8% |
| Spain | 11 | 4% |
| Norway | 9 | 3% |
| Italy | 6 | 2% |
| Portugal | 5 | 2% |
| Austria | 5 | 2% |
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 172 | 65% |
| Corporate VC | 26 | 10% |
| Fund manager | 24 | 9% |
| Government or university fund | 21 | 8% |
| Angel network | 6 | 2% |
| Accelerator | 6 | 2% |
Method and limits
- Source
- 58 of the 263 rows carry an SEC filing (Form D or Form ADV). All 263 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule
- Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states climate tech as a focus on its own site, or we observed it in the firm's portfolio. Stage: the firm states that it invests at Series A.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stage focus (15: all of it when Series A is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Last refreshed
- November 2026. Rows on this list were checked between 4 Nov 2026 and 9 Nov 2026.
- Fill rates
- Of 263 rows: stage 263, sector 263, fund size 139, website 263. In the paid file: named decision-makers on 233 rows, firm email on 153, LinkedIn page on 195, check size on 102.
- Corrections
- Email hello@theinvestordatabase.com or use the update form. We act within 5 working days.
Questions
How many Series A climate tech investors are there?
We list 263 as of November 2026. 123 of the 263 have a fund filing or a dated deal in the last 12 months.
Which Series A climate tech investors raised a new fund in the last 12 months?
24 of the 263 have a fund filing dated in the last 12 months. The most recent on this list are Overlap Holdings (Oct 2026), Bison Ventures (Oct 2026) and Earthshot Ventures (Oct 2026).
What is the typical fund size of Series A climate tech investors?
The median fund size on file for this list is $78M, across the 44 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 219 do not disclose a size there.
How do I contact Series A climate tech investors?
The paid file holds 1,177 named decision-makers across 233 of these 263 and a firm email for 153. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.
Where does the data on Series A climate tech investors come from?
58 of the 263 rows have an SEC filing on file (Form D or Form ADV) and 205 were checked on the firm's own website or an official register. Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 9 Nov 2026 at the latest. The whole file is re-verified twice a year.
Broader lists
Narrower lists
Related lists
Series A AI investors (500)Series A SaaS investors (475)Seed climate tech investors (458)Series A healthtech investors (401)Series A fintech investors (294)Series A deep tech investors (293)Pre-seed climate tech investors (230)Growth-stage climate tech investors (189)Series A B2B investors (157)Series A consumer investors (154)Series A biotech investors (153)Series A energy investors (139)Series A medtech investors (125)Series A cybersecurity investors (118)Series A industrial tech investors (113)Series B climate tech investors (98)Series A hardware investors (82)Series A mobility investors (70)
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