256 climate tech venture capital firms in the US
We list 256 climate tech venture capital firms in the US as of November 2026: 252 have an SEC filing on file and 4 were checked on the firm's own website or an official register, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are New York (30), San Francisco (27) and Boston (12).
Top 10 climate tech venture capital firms in the US, 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), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional 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.
SOSV
Type: VC firm · HQ: United States · Stages: Pre-seed · Focus: Climate Tech, Deep Tech, Healthtech, Biotech · Latest activity: Portfolio news, Nov 2026 · Fund size on file: $131M (SEC Form D, 2022)
Portfolio news dated Nov 2026; $131M fund on file (SEC Form D, 2022); 100% of its observed portfolio is climate tech; names the US as where it invests; 8 named decision-makers on file.
Energy Impact Partners
Type: VC firm · HQ: United States (London office) · Stages: Seed, Series A, Series B, Growth · Focus: Climate Tech, Energy, AI, Cybersecurity · Latest activity: Portfolio news, Nov 2026 · Fund size or assets: $4.5B (own site)
Portfolio news dated Nov 2026; $4.5B on file (own site); 40% of its observed portfolio is climate tech; names the US as where it invests; 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; names the US as where it invests.
Redbud VC
Type: VC firm · HQ: Columbia, MO · Stages: Pre-seed · Focus: Climate Tech, Healthtech, Agritech, AI · Latest activity: New fund, Sep 2026 · Fund size on file: $25M (SEC Form D, 2025)
Latest fund filing dated Sep 2026; $25M fund on file (SEC Form D, 2025); 100% of its observed portfolio is climate tech; names the US as where it invests; 8 named decision-makers on file.
ClearSky
Type: VC firm · HQ: West Palm Beach, FL · Stages: Growth · Focus: Climate Tech, AI, Energy, Cybersecurity · Latest activity: New fund, Nov 2026 · Fund size on file: $500M (SEC Form D, 2024)
Latest fund filing dated Nov 2026; $500M fund on file (SEC Form D, 2024); 100% of its observed portfolio is climate tech; 8 named decision-makers on file.
Battery Ventures
Type: VC firm · HQ: Boston, MA · Stages: Any stage · Focus: Climate Tech, Energy, Biotech, Future of Work · Latest activity: Portfolio news, Jul 2026 · Fund size or assets: $3.2B (own site)
Portfolio news dated Jul 2026; $3.2B on file (own site); 100% of its observed portfolio is climate tech; names the US as where it invests.
Khosla Ventures
Type: VC firm · HQ: Menlo Park, CA · Stages: Pre-seed, Seed, Series A, Growth · Focus: Climate Tech, AI, Consumer, B2B · Latest activity: New fund, Aug 2026 · Fund size on file: $1.9B (SEC Form D, 2025)
Latest fund filing dated Aug 2026; $1.9B fund on file (SEC Form D, 2025); states climate tech as a focus; names the US as where it invests; 8 named decision-makers on file.
Ecosphere Ventures
Type: VC firm · HQ: Sugar Land, TX · Stages: Pre-seed, Seed · Focus: Climate Tech, Energy, Industrial Tech, Defense Tech · Latest activity: New fund, Sep 2026 · Fund size on file: $10M (SEC Form D, 2026)
Latest fund filing dated Sep 2026; $10M fund on file (SEC Form D, 2026); 44% of its observed portfolio is climate tech; names the US as where it invests; 8 named decision-makers on file.
VoLo Earth Ventures Impact
Type: VC firm · HQ: Snowmass Village, CO · Stages: Pre-seed · Focus: Climate Tech, Energy, Mobility, Industrial Tech · Latest activity: New deal, Jul 2026 · Fund size on file: $100M (SEC Form D, 2021)
Dated new deal in Jul 2026; $100M fund on file (SEC Form D, 2021); 73% of its observed portfolio is climate tech; names the US as where it invests; 7 named decision-makers on file.
DBL Investors
Type: VC firm · HQ: San Francisco, CA · Focus: Climate Tech, AI, Industrial Tech, Impact · Latest activity: Portfolio news, Nov 2026 · Private fund assets: $673M (SEC Form ADV)
Portfolio news dated Nov 2026; $673M on file (SEC Form ADV); 28% of its observed portfolio is climate tech; names the US as where it invests; 7 named decision-makers on file.
First 25 of 256 climate tech venture capital firms in the US
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| SOSV | VC firm | United States | Pre-seed | Climate Tech, Deep Tech, Healthtech, Biotech | Portfolio news, Nov 2026 | $131M (SEC Form D, 2022) | 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 |
| 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 |
| Redbud VC | VC firm | Columbia, MO | Pre-seed | Climate Tech, Healthtech, Agritech, AI | New fund, Sep 2026 | $25M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| ClearSky | VC firm | West Palm Beach, FL | Growth | Climate Tech, AI, Energy, Cybersecurity | New fund, Nov 2026 | $500M (SEC Form D, 2024) | 4 Nov 2026 | 8 names · Unlock |
| Battery Ventures | VC firm | Boston, MA | Any stage | Climate Tech, Energy, Biotech, Future of Work | Portfolio news, Jul 2026 | $3.2B (own site) | 4 Nov 2026 | LinkedIn page · 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 |
| 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 |
| VoLo Earth Ventures Impact | VC firm | Snowmass Village, CO | Pre-seed | Climate Tech, Energy, Mobility, Industrial Tech | New deal, Jul 2026 | $100M (SEC Form D, 2021) | 5 Nov 2026 | 7 names · Unlock |
| DBL Investors | VC firm | San Francisco, CA | Climate Tech, AI, Industrial Tech, Impact | Portfolio news, Nov 2026 | $673M (SEC Form ADV) | 5 Nov 2026 | 7 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 |
| Bison Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | Climate Tech, AI, Healthtech, Energy | New fund, Oct 2026 | $160M (SEC Form D, 2025) | 4 Nov 2026 | 2 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 |
| 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 |
| 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 |
| Wave Equity Partners | VC firm | Boston, MA | Growth | Climate Tech, Energy, Industrial Tech, Mobility | New fund, Sep 2026 | $250M (SEC Form D, 2023) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Greycroft | VC firm | New York, NY | Series A, Series B, Growth | Climate Tech, AI, Industrial Tech, Defense Tech | New deal, Oct 2026 | $600M (SEC Form D, 2022) | 4 Nov 2026 | 5 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 |
| Safar Partners | VC firm | Cambridge, MA | Seed | Climate Tech, Healthtech, Industrial Tech, Biotech | New deal, Aug 2026 | $300M (SEC Form D, 2023) | 4 Nov 2026 | 3 names, firm email · Unlock |
| Hallstone Ventures | VC firm | Hollywood, CA | Seed | Climate Tech, Space, Robotics, Media | New fund, Oct 2026 | $11M (SEC Form D, 2025) | 4 Nov 2026 | 5 names · Unlock |
| First Bight Ventures | VC firm | Houston, TX | Seed, Series A | Climate Tech, Healthtech, Biotech, Industrial Tech | New fund, Mar 2026 | $80M (SEC Form D, 2022) | 4 Nov 2026 | 5 names · Unlock |
| K Street Capital | VC firm | Richmond, VA | Seed | Climate Tech, Fintech, AI, Energy | New fund, Sep 2026 | $20M (SEC Form D, 2026) | 4 Nov 2026 | 4 names, firm email · 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 |
| 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 |
| Galileo Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Climate Tech, AI, Deep Tech, Robotics | New fund, Aug 2026 | $100M (SEC Form D, 2023) | 5 Nov 2026 | 5 names, firm email · Unlock |
You are seeing 25 of 256. The full list adds 231 more firms and 1,303 named decision-makers.
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How these 256 break down
By US state
| US state | On this list | Share |
|---|---|---|
| California | 98 | 38% |
| New York | 39 | 15% |
| Massachusetts | 19 | 7% |
| Texas | 11 | 4% |
| Colorado | 11 | 4% |
| Florida | 10 | 4% |
| Illinois | 9 | 4% |
| Washington | 5 | 2% |
| Pennsylvania | 4 | 2% |
| New Jersey | 4 | 2% |
Full lists, each with its own row count: Climate tech investors in California (98)Climate tech investors in New York (40)Climate tech investors in Massachusetts (19)
By stage
| Stage | On this list | Share |
|---|---|---|
| Pre-Seed | 82 | 32% |
| Seed | 159 | 62% |
| Series A | 59 | 23% |
| Series B | 26 | 10% |
| Growth | 33 | 13% |
Stage is our research. A firm can back more than one stage.
Full lists, each with its own row count: Pre-seed climate tech investors in the US (84)Seed climate tech investors in the US (162)Series A climate tech investors in the US (60)Series B climate tech investors in the US (27)Growth-stage climate tech investors in the US (34)
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 250 | 98% |
| Corporate VC | 3 | 1% |
| Fund manager | 3 | 1% |
Method and limits
- Source
- 252 of the 256 rows carry an SEC filing (Form D or Form ADV). 254 of the 256 have a website we checked; the other 2 rest on the filing or register entry alone. 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. This list holds VC firms, fund managers and corporate venture arms; accelerators and angel networks are in their own lists. Sector: the firm states climate tech as a focus on its own site, or we observed it in the firm's portfolio.
- 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), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional 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 6 Nov 2026.
- Fill rates
- Of 256 rows: stage 196, sector 256, fund size 233, website 254. In the paid file: named decision-makers on 250 rows, firm email on 88, LinkedIn page on 142, check size on 20.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many climate tech venture capital firms in the US are there?
We list 256 as of November 2026. 146 of the 256 have a fund filing or a dated deal in the last 12 months. The cities with the most are New York (30), San Francisco (27) and Boston (12).
Which climate tech venture capital firms in the US raised a new fund in the last 12 months?
98 of the 256 have a fund filing dated in the last 12 months. The most recent on this list are Reveille (Nov 2026), ClearSky (Nov 2026) and Future Ventures (Oct 2026).
What is the typical fund size of climate tech venture capital firms in the US?
The median fund size on file for this list is $75M, across the 186 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 70 do not disclose a size there.
Which stage do most climate tech venture capital firms in the US back?
Of the 196 with a stage on file, seed (159), pre-seed (82) and Series A (59). A firm can back more than one stage, and 60 rows have no stage on file yet.
Where does the data on climate tech venture capital firms in the US come from and how often is it updated?
252 of the 256 rows have an SEC filing on file (Form D or Form ADV) and 4 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 6 Nov 2026 at the latest. The whole file is re-verified twice a year.
Can I download the list of climate tech venture capital firms in the US as a spreadsheet?
Yes. The file holds all 256 rows in Excel and CSV, with 1,303 named decision-makers and 88 firm emails, for $49 one-time. 25 rows are free on this page.
Narrower lists
Seed climate tech investors in the US (162)Climate tech investors in California (98)Pre-seed climate tech investors in the US (84)Climate tech investors in the San Francisco Bay Area (71)Series A climate tech investors in the US (60)Climate tech investors in New York (40)Growth-stage climate tech investors in the US (34)Series B climate tech investors in the US (27)Climate tech investors in Silicon Valley (26)Climate tech investors in Massachusetts (19)Climate tech investors in Los Angeles (17)
Related lists
CPG venture capital firms in the US (130)Consumer venture capital firms in the US (348)Ecommerce venture capital firms in the US (69)Edtech venture capital firms in the US (83)Proptech venture capital firms in the US (96)Climate tech investors in Europe (250)Climate tech investors in the UK (146)Deep tech venture capital firms in the US (322)Hardware venture capital firms in the US (272)Impact venture capital firms in the US (55)Food and beverage venture capital firms in the US (91)AI venture capital firms in the US (1,112)SaaS venture capital firms in the US (1,049)Healthtech venture capital firms in the US (709)Fintech venture capital firms in the US (525)Medtech venture capital firms in the US (350)Biotech venture capital firms in the US (297)Industrial tech venture capital firms in the US (267)
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