84 pre-seed climate tech investors in the US
We list 84 pre-seed climate tech investors in the US as of November 2026: each has an SEC filing on file, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are San Francisco (10), New York (10) and Boston (7).
Top 5 pre-seed climate tech investors 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 (30: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (20; half of that when the sector is stated only), stage focus (15: all of it when pre-seed is the only stage the firm states, split evenly when it states more), 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 (12) and completeness of the public record (8). Stage and regional focus are 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; backs pre-seed; names the US as where it invests; 8 named decision-makers on file.
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; backs pre-seed; 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; backs pre-seed; names the US as where it invests; 7 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; backs pre-seed, seed; names the US as where it invests; 8 named decision-makers on file.
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; backs pre-seed, seed, Series A; names the US as where it invests; 8 named decision-makers on file.
First 25 of 84 pre-seed climate tech investors 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Pachamama Ventures | VC firm | Hayward, CA | Pre-seed | Climate Tech, AI, Energy, Logistics | New fund, Apr 2026 | $5M (SEC Form D, 2024) | 4 Nov 2026 | 1 name · 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 |
| BetterWay Ventures | VC firm | Charleston, SC | Pre-seed, Seed | Climate Tech, Industrial Tech, Deep Tech | New fund, Sep 2026 | $5M (SEC Form D, 2024) | 4 Nov 2026 | 1 name · Unlock |
| Equal Opportunity Ventures | VC firm | Cambridge, MA | Pre-seed | Climate Tech, Healthtech, Fintech, Food and Beverage | New deal, Apr 2026 | $152M (SEC Form ADV) | 5 Nov 2026 | 8 names · Unlock |
| First In Ventures | VC firm | Hobe Sound, FL | Pre-seed, Seed | Climate Tech, Biotech, Healthtech, AI | New fund, Sep 2026 | $22M (SEC Form D, 2026) | 4 Nov 2026 | 5 names, firm email · Unlock |
| Commonweal Ventures | VC firm | New York, NY | Pre-seed, Seed | Climate Tech, AI, Legal Tech, Fintech | New fund, Jul 2026 | $75M (SEC Form D, 2022) | 4 Nov 2026 | 5 names, firm email · Unlock |
| Autotech Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B | Climate Tech, Mobility, AI, Logistics | New fund, Aug 2026 | $25M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| 3i Partners | VC firm | Los Altos, CA | Pre-seed, Seed | Climate Tech, Mobility, Healthtech, Deep Tech | New fund, May 2026 | $24M (SEC Form D, 2025) | 5 Nov 2026 | 8 names · Unlock |
| How Women Invest | VC firm | Oakland, CA | Pre-seed, Seed, Series A, Series B | Climate Tech, Healthtech, AI, B2B | New fund, Sep 2026 | $12M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Kindred Ventures | VC firm | San Francisco, CA | Pre-seed, Seed | Climate Tech, AI, Crypto and Web3, Fintech | New fund, Sep 2026 | $230M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| Deep Future | VC firm | Seattle, WA | Pre-seed | Climate Tech, Energy, Semiconductor, Robotics | New fund, May 2026 | $50M (SEC Form D, 2025) | 4 Nov 2026 | 1 name · Unlock |
| Material Impact | VC firm | Boston, MA | Pre-seed | Climate Tech, Industrial Tech, Deep Tech, Robotics | New deal, Dec 2025 | $325M (SEC Form D, 2022) | 5 Nov 2026 | 8 names, firm email · Unlock |
| Great Wave Ventures | VC firm | New York, NY | Pre-seed, Seed, Series A | Climate Tech, AI, Proptech, Robotics | New fund, May 2026 | $31M (SEC Form ADV) | 5 Nov 2026 | 5 names · Unlock |
| Timescale Ventures | VC firm | Marblehead, MA | Pre-seed, Seed | Climate Tech, Energy, Industrial Tech, AI | New fund, Sep 2026 | $50M (SEC Form D, 2025) | 4 Nov 2026 | 2 names, firm email · Unlock |
| Crystal Venture Partners | VC firm | New York, NY | Pre-seed, Seed | Climate Tech, Insurtech, AI, Fintech | New fund, Oct 2026 | $30M (SEC Form D, 2024) | 4 Nov 2026 | 5 names, firm email · Unlock |
| Techsquare Ventures | VC firm | Atlanta, GA | Pre-seed, Seed, Series A | Climate Tech, AI, Data, Cybersecurity | New fund, May 2026 | $49M (SEC Form D, 2025) | 4 Nov 2026 | 8 names, firm email · Unlock |
| New System Ventures | VC firm | New York, NY | Pre-seed, Seed, Series A, Series B | Climate Tech, Energy, Fintech, Industrial Tech | New deal, Aug 2026 | $30M (SEC Form D, 2023) | 4 Nov 2026 | 3 names, firm email · Unlock |
| Westly Capital Partners | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | Climate Tech, AI, Energy, Industrial Tech | New fund, May 2026 | $500M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Foundt Capital | VC firm | Dallas, TX | Pre-seed, Seed | Climate Tech, Energy, Defense Tech, Mobility | New fund, Jul 2025 | $2M (SEC Form D, 2024) | 5 Nov 2026 | 3 names · Unlock |
You are seeing 25 of 84. The full list adds 59 more investors and 401 named decision-makers.
One-time payment. No subscription. No account.
Or get the free sample.
How these 84 break down
By US state
| US state | On this list | Share |
|---|---|---|
| California | 30 | 36% |
| New York | 15 | 18% |
| Massachusetts | 10 | 12% |
| Colorado | 4 | 5% |
| Texas | 3 | 4% |
| Pennsylvania | 3 | 4% |
| South Carolina | 2 | 2% |
| Florida | 2 | 2% |
| Washington | 2 | 2% |
| Georgia | 2 | 2% |
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 82 | 98% |
| Accelerator | 1 | 1% |
| Single family office | 1 | 1% |
Method and limits
- Source
- All 84 rows carry an SEC filing (Form D or Form ADV). All 84 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 pre-seed.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (30: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (20; half of that when the sector is stated only), stage focus (15: all of it when pre-seed is the only stage the firm states, split evenly when it states more), 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 (12) and completeness of the public record (8). Stage and regional focus are 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 84 rows: stage 84, sector 84, fund size 79, website 84. In the paid file: named decision-makers on 83 rows, firm email on 31, LinkedIn page on 45, check size on 11.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many pre-seed climate tech investors in the US are there?
We list 84 as of November 2026. 49 of the 84 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (10), New York (10) and Boston (7).
Which pre-seed climate tech investors in the US raised a new fund in the last 12 months?
36 of the 84 have a fund filing dated in the last 12 months. The most recent on this list are Crystal Venture Partners (Oct 2026), Bison Ventures (Oct 2026) and Earthshot Ventures (Oct 2026).
What is the typical fund size of pre-seed climate tech investors in the US?
The median fund size on file for this list is $30M, across the 68 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 16 do not disclose a size there.
How do I contact pre-seed climate tech investors in the US?
The paid file holds 401 named decision-makers across 83 of these 84 and a firm email for 31. 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 pre-seed climate tech investors in the US come from?
All 84 rows have an SEC filing on file (Form D or Form ADV). 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.
Broader lists
Climate tech venture capital firms in the US (256)Pre-seed investors in the US (549)Pre-seed climate tech investors (230)
Related lists
Pre-seed AI investors in the US (403)Pre-seed SaaS investors in the US (367)Pre-seed healthtech investors in the US (225)Pre-seed fintech investors in the US (187)Seed climate tech investors in the US (162)Pre-seed deep tech investors in the US (114)Pre-seed consumer investors in the US (104)Pre-seed medtech investors in the US (95)Pre-seed hardware investors in the US (95)Pre-seed B2B investors in the US (86)Pre-seed biotech investors in the US (81)Pre-seed industrial tech investors in the US (79)Pre-seed robotics investors in the US (76)Pre-seed energy investors in the US (73)Pre-seed developer tools investors in the US (67)Series A climate tech investors in the US (60)Pre-seed cybersecurity investors in the US (60)Pre-seed future of work investors in the US (52)
Not sure this is the right list? Describe your raise in the investor matching tool and get a shortlist. The link opens it set to climate tech, pre-seed and the US. Guide: how to find investors for a climate tech startup. Markdown version of this page.
Check the quality first
A free sample of 100 investors, every column, with sources and dates.