Investor Lists

Seed cleantech investors

Updated 7 November 2026

Firms we have watched take part in a seed round raised by a cleantech company in the last two years. Both the stage and the sector are what they did, not what their website says.

See all 316 →The top 25
316investors on the list+15 this week
6,894cheques in 12 months-19% against the market
$5.5Mmedian round they joined-31% against the market median
89%wrote a cheque in 12 months
51%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

  1. 1Y CombinatorDeploying nowAccelerator · United States6,412$3Mmedian roundOct 2026last seen
  2. 2TechstarsDeploying nowVC firm · United States2,989$1.2Mmedian roundNov 2026last seen
  3. 3500 GlobalDeploying nowAngel · United States2,140$3.6Mmedian roundOct 2026last seen
  4. 4National Science FoundationDeploying nowGovernment · United States1,869$926Kmedian roundSept 2026last seen
  5. 5Andreessen HorowitzDeploying nowVC firm · United States1,661$27Mmedian roundNov 2026last seen
  6. 6Alumni VenturesDeploying nowVC firm · United States1,598$12Mmedian roundNov 2026last seen
  7. 7Plug and PlayDeploying nowAccelerator · United States1,561$5Mmedian roundNov 2026last seen
  8. 8General CatalystDeploying nowVC firm · United States1,387$27Mmedian roundNov 2026last seen
  9. 9SV AngelDeploying nowVC firm · United States1,349$18Mmedian roundOct 2026last seen
  10. 10BpifranceDeploying nowGovernment · France1,151$4.5Mmedian roundOct 2026last seen
  11. 11Khosla VenturesDeploying nowVC firm · United States1,128$26Mmedian roundNov 2026last seen
  12. 12Founders FundDeploying nowVC firm · United States1,122$15Mmedian roundOct 2026last seen
  13. 13MassChallengeDeploying nowAccelerator · United States984$1.8Mmedian roundSept 2026last seen
  14. 14SOSVDeploying nowVC firm · United States951$2.5Mmedian roundNov 2026last seen
  15. 15EIC AcceleratorDeploying nowGovernment · European Union875$4.3Mmedian roundOct 2026last seen
  16. 16Kima VenturesDeploying nowVC firm · France859$4.2Mmedian roundNov 2026last seen
  17. 17FJ LabsDeploying nowVC firm · United States849$11Mmedian roundOct 2026last seen
  18. 18Google for StartupsDeploying nowAccelerator · United States811$1.4Mmedian roundSept 2026last seen
  19. 19AntlerDeploying nowVC firm · United Kingdom729$1Mmedian roundNov 2026last seen
  20. 20Innovate UKDeploying nowVC firm · United Kingdom704$1.2Mmedian roundOct 2026last seen
  21. 21BDC CapitalDeploying nowVC firm · Canada685$6Mmedian roundSept 2026last seen
  22. 22Liquid 2 VenturesDeploying nowVC firm · United States636$7Mmedian roundOct 2026last seen
  23. 23EISMEADeploying nowInvestment firm524$2.2Mmedian roundSept 2026last seen
  24. 24SeedcampDeploying nowVC firm · United Kingdom519$5Mmedian roundNov 2026last seen
  25. 25Global Brain CorporationDeploying nowVC firm · Japan480$7.6Mmedian roundSept 2026last seen
291 more on this list

All 316 are in the app, with filters for stage, sector and market. A free account shows 10 per search, Pro up to 1,000.

See the whole list →

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Quick answers about seed cleantech investors

Who are the most active seed cleantech investors?

By cheques observed, the most active are Y Combinator, Techstars, 500 Global, National Science Foundation and Andreessen Horowitz.

How many seed cleantech investors are there?

316 are on record. 89% made an investment in the last 12 months and 51% have led a round.

Which stages do seed cleantech investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (31%) and Series A (21%).

How big are the rounds seed cleantech investors join?

The typical (median) round among the leading investors here is $4.5M.

Which sectors do seed cleantech investors back most?

In the last 12 months, mostly AI, Biotech and Healthcare.

Which seed cleantech investors lead the most rounds?

Andreessen Horowitz (114 led), General Catalyst (97 led) and Khosla Ventures (57 led).

Where are seed cleantech investors based?

Among the most active, most are based in the United States (16), the United Kingdom (3) and France (2).

What have seed cleantech investors invested in recently?

Recent rounds include Vensum Power (Series A, Nov 2026, with Lifeline Ventures), Humble Robotics (Series A, Nov 2026, with Energy Impact Partners) and Ocient (Series C, Nov 2026, with In-Q-Tel).

Built from the rounds we watched, refreshed every night. How we count · Report a correction