458 seed climate tech investors
We list 458 seed climate tech investors as of November 2026: 161 have an SEC filing on file and 297 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 (66), New York (20) and Massachusetts (13).
Top 5 seed 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 seed 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.
Green Angel Ventures
Type: SEIS/EIS fund · HQ: London, United Kingdom · Stages: Seed · Focus: Climate Tech, Energy, Industrial Tech, Fintech · Latest activity: Portfolio news, Aug 2026 · Fund size or assets: £60M (own site)
Portfolio news dated Aug 2026; £60M on file (own site); 83% of its observed portfolio is climate tech; backs seed; 8 named decision-makers on file.
LMNT Ventures
Type: VC firm · HQ: Mercer Island, WA · Stages: Seed · Focus: Climate Tech, Proptech, Robotics, Mobility · Latest activity: New fund, Sep 2026 · Fund size on file: $80M (SEC Form D, 2026)
Latest fund filing dated Sep 2026; $80M fund on file (SEC Form D, 2026); 50% of its observed portfolio is climate tech; backs seed; 8 named decision-makers on file.
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.
Starshot Capital
Type: VC firm · HQ: Los Angeles, CA · Stages: Seed · Focus: Climate Tech, Energy, AI, Mobility · Latest activity: New deal, Jul 2026 · Fund size on file: $100M (SEC Form D, 2026)
Dated new deal in Jul 2026; $100M fund on file (SEC Form D, 2026); 74% of its observed portfolio is climate tech; backs seed; 8 named decision-makers on file.
First 25 of 458 seed climate tech investors
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| Green Angel Ventures | SEIS/EIS fund | London, United Kingdom | Seed | Climate Tech, Energy, Industrial Tech, Fintech | Portfolio news, Aug 2026 | £60M (own site) | 4 Nov 2026 | 8 names · Unlock |
| LMNT Ventures | VC firm | Mercer Island, WA | Seed | Climate Tech, Proptech, Robotics, Mobility | New fund, Sep 2026 | $80M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| 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 |
| Starshot Capital | VC firm | Los Angeles, CA | Seed | Climate Tech, Energy, AI, Mobility | New deal, Jul 2026 | $100M (SEC Form D, 2026) | 4 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 |
| 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 |
| Lowercarbon Capital | VC firm | Jackson, WY | Seed | Climate Tech, Energy, Industrial Tech, Mobility | New fund, Sep 2026 | 4 Nov 2026 | 8 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 |
| Echo River Capital | VC firm | Belvedere Tiburon, CA | Seed | Climate Tech, Industrial Tech, Agritech, Impact | New fund, Aug 2026 | $30M (SEC Form D, 2026) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Building Ventures | VC firm | Boston, MA | Seed | Climate Tech, Proptech, AI, Energy | New deal, Sep 2026 | $100M (SEC Form D, 2021) | 5 Nov 2026 | 8 names · Unlock |
| Lichen Ventures | VC firm | Baltimore, MD | Seed | Climate Tech, Industrial Tech, Energy, Biotech | New fund, Jun 2026 | $20M (SEC Form D, 2025) | 4 Nov 2026 | 5 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 |
| Light Ray Ventures | VC firm | New York, NY | Seed | Climate Tech, Robotics, Industrial Tech, Energy | New deal, Oct 2026 | $21M (SEC Form D, 2023) | 5 Nov 2026 | 3 names, firm email · Unlock |
| Reveille | VC firm | New York, NY | Seed | Climate Tech, Defense Tech, Energy, Space | New fund, Nov 2026 | $40M (SEC Form D, 2025) | 4 Nov 2026 | 3 names, firm email · Unlock |
| British Design Fund | SEIS/EIS fund | London, United Kingdom | Seed | Climate Tech, Healthtech, Energy, Industrial Tech | Portfolio news, Oct 2026 | 4 Nov 2026 | 8 names, firm email · Unlock | |
| Future Ventures | VC firm | Los Altos, CA | Seed | Climate Tech, Healthtech, AI, Biotech | New fund, Oct 2026 | $200M (SEC Form D, 2021) | 4 Nov 2026 | 4 names · 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 |
| SISTAFUND | VC firm | Paris, France | Seed | Climate Tech, Deep Tech, Healthtech, AI | Portfolio news, Sep 2026 | €70M (own site) | 7 Nov 2026 | firm email · Unlock |
| Cambridge Angels | Angel network | Cambridge, United Kingdom | Seed | Climate Tech, Healthtech, Biotech, Deep Tech | Portfolio news, Oct 2026 | £400M (own site) | 4 Nov 2026 | LinkedIn page · Unlock |
| Ecosphere Ventures | VC firm | Sugar Land, TX | Pre-seed, Seed | Climate Tech, Energy, Industrial Tech, Defense Tech | New fund, Sep 2026 | $10M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · 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 |
| Azolla Ventures | VC firm | Cambridge, MA | Seed | Climate Tech, Energy, Industrial Tech, Agritech | New fund, Mar 2026 | $130M (SEC Form D, 2021) | 4 Nov 2026 | 3 names, firm email · 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 |
| Elbow Beach | VC firm | London, United Kingdom | Pre-seed, Seed | Climate Tech, Energy, Agritech, Mobility | New deal, Oct 2026 | 4 Nov 2026 | 8 names, firm email · Unlock |
You are seeing 25 of 458. The full list adds 433 more investors and 1,970 named decision-makers.
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How these 458 break down
By region
| Region | On this list | Share |
|---|---|---|
| United States | 162 | 35% |
| United Kingdom | 111 | 24% |
| Europe | 183 | 40% |
By US state
| US state | On this list | Share |
|---|---|---|
| California | 66 | 14% |
| New York | 20 | 4% |
| Massachusetts | 13 | 3% |
| Colorado | 8 | 2% |
| Texas | 8 | 2% |
| Florida | 8 | 2% |
| Illinois | 4 | 1% |
| New Jersey | 4 | 1% |
| Washington | 3 | 1% |
| Georgia | 3 | 1% |
By European country
| European country | On this list | Share |
|---|---|---|
| France | 41 | 9% |
| Netherlands | 31 | 7% |
| Germany | 24 | 5% |
| Norway | 21 | 5% |
| Spain | 14 | 3% |
| Sweden | 10 | 2% |
| Italy | 7 | 2% |
| Austria | 7 | 2% |
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 310 | 68% |
| Corporate VC | 31 | 7% |
| Angel network | 26 | 6% |
| Government or university fund | 26 | 6% |
| Fund manager | 22 | 5% |
| SEIS/EIS fund | 16 | 3% |
Method and limits
- Source
- 161 of the 458 rows carry an SEC filing (Form D or Form ADV). All 458 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 seed.
- 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 seed 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 458 rows: stage 458, sector 458, fund size 240, website 458. In the paid file: named decision-makers on 411 rows, firm email on 235, LinkedIn page on 310, check size on 151.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many seed climate tech investors are there?
We list 458 as of November 2026. 200 of the 458 have a fund filing or a dated deal in the last 12 months.
Which seed climate tech investors raised a new fund in the last 12 months?
71 of the 458 have a fund filing dated in the last 12 months. The most recent on this list are Reveille (Nov 2026), Future Ventures (Oct 2026) and Crystal Venture Partners (Oct 2026).
What is the typical fund size of seed climate tech investors?
The median fund size on file for this list is $50M, across the 124 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 334 do not disclose a size there.
How do I contact seed climate tech investors?
The paid file holds 1,970 named decision-makers across 411 of these 458 and a firm email for 235. 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 seed climate tech investors come from?
161 of the 458 rows have an SEC filing on file (Form D or Form ADV) and 297 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.
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