Investor Lists

Series A cleantech investors

Updated 7 November 2026

Firms we have watched take part in a Series A 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 334 →The top 25
334investors on the list+3 this week
6,362cheques in 12 months-12% against the market
$11Mmedian round they joined+40% against the market median
87%wrote a cheque in 12 months
57%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

  1. 1TechstarsDeploying nowVC firm · United States2,989$1.2Mmedian roundNov 2026last seen
  2. 2National Science FoundationDeploying nowGovernment · United States1,869$926Kmedian roundSept 2026last seen
  3. 3Andreessen HorowitzDeploying nowVC firm · United States1,661$27Mmedian roundNov 2026last seen
  4. 4New Enterprise AssociatesDeploying nowVC firm · United States1,610$34Mmedian roundOct 2026last seen
  5. 5Alumni VenturesDeploying nowVC firm · United States1,598$12Mmedian roundNov 2026last seen
  6. 6Plug and PlayDeploying nowAccelerator · United States1,561$5Mmedian roundNov 2026last seen
  7. 7Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  8. 8BpifranceDeploying nowGovernment · France1,151$4.5Mmedian roundOct 2026last seen
  9. 9Khosla VenturesDeploying nowVC firm · United States1,128$26Mmedian roundNov 2026last seen
  10. 10Founders FundDeploying nowVC firm · United States1,122$15Mmedian roundOct 2026last seen
  11. 11Index VenturesDeploying nowVC firm · United Kingdom1,027$31Mmedian roundNov 2026last seen
  12. 12SOSVDeploying nowVC firm · United States951$2.5Mmedian roundNov 2026last seen
  13. 13EIC AcceleratorDeploying nowGovernment · European Union875$4.3Mmedian roundOct 2026last seen
  14. 14Kima VenturesDeploying nowVC firm · France859$4.2Mmedian roundNov 2026last seen
  15. 15FJ LabsDeploying nowVC firm · United States849$11Mmedian roundOct 2026last seen
  16. 16First Round CapitalDeploying nowVC firm · United States807$18Mmedian roundOct 2026last seen
  17. 17BoxGroupDeploying nowVC firm · United States773$18Mmedian roundNov 2026last seen
  18. 18FelicisDeploying nowVC firm · United States640$20Mmedian roundNov 2026last seen
  19. 198VCDeploying nowVC firm · United States497$23Mmedian roundOct 2026last seen
  20. 20Mitsubishi UFJ CapitalDeploying nowVC firm · Japan493$4.7Mmedian roundNov 2026last seen
  21. 21Global Brain CorporationDeploying nowVC firm · Japan480$7.6Mmedian roundSept 2026last seen
  22. 22Spark CapitalDeploying nowVC firm · United States471$40Mmedian roundOct 2026last seen
  23. 23Global Founders CapitalDeploying nowVC firm · Germany461$7Mmedian roundOct 2026last seen
  24. 24US Department of EnergyDeploying nowGovernment · United States453$2Mmedian roundSept 2026last seen
  25. 25Creative Destruction LabDeploying nowAccelerator · Canada427$3Mmedian roundSept 2026last seen
309 more on this list

All 334 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 series A cleantech investors

Who are the most active series A cleantech investors?

By cheques observed, the most active are Techstars, National Science Foundation, Andreessen Horowitz, New Enterprise Associates and Alumni Ventures.

How many series A cleantech investors are there?

334 are on record. 87% made an investment in the last 12 months and 57% have led a round.

Which stages do series A cleantech investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (27%) and Series A (26%).

How big are the rounds series A cleantech investors join?

The typical (median) round among the leading investors here is $11M.

Which sectors do series A cleantech investors back most?

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

Which series A cleantech investors lead the most rounds?

Andreessen Horowitz (114 led), Lightspeed Venture Partners (83 led) and New Enterprise Associates (73 led).

Where are series A cleantech investors based?

Among the most active, most are based in the United States (17), France (2) and Japan (2).

What have series A 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