Investor Lists

Series B cleantech investors

Updated 7 November 2026

Firms we have watched take part in a Series B 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 139 →The top 25
139investors on the listNo change this week
2,887cheques in 12 months-13% against the market
$24Mmedian round they joined+202% against the market median
85%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. 4AccelDeploying nowVC firm · United States1,341$32Mmedian roundNov 2026last seen
  5. 5Lightspeed Venture PartnersDeploying nowVC firm · United States1,341$35Mmedian roundNov 2026last seen
  6. 6Khosla VenturesDeploying nowVC firm · United States1,128$26Mmedian roundNov 2026last seen
  7. 7SOSVDeploying nowVC firm · United States951$2.5Mmedian roundNov 2026last seen
  8. 8EIC AcceleratorDeploying nowGovernment · European Union875$4.3Mmedian roundOct 2026last seen
  9. 9Right Side Capital ManagementDeploying nowVC firm · United States834$875Kmedian roundSept 2026last seen
  10. 10Tiger Global ManagementDeploying nowVC firm · United States773$47Mmedian roundNov 2026last seen
  11. 11Global Founders CapitalDeploying nowVC firm · Germany461$7Mmedian roundOct 2026last seen
  12. 12US Department of EnergyDeploying nowGovernment · United States453$2Mmedian roundSept 2026last seen
  13. 13Lerer HippeauDeploying nowVC firm · United States419$9.7Mmedian roundNov 2026last seen
  14. 14Union Square VenturesDeploying nowVC firm · United States407$17Mmedian roundNov 2026last seen
  15. 15CoatueDeploying nowVC firm · United States404$85Mmedian roundOct 2026last seen
  16. 16Temasek HoldingsDeploying nowVC firm · Singapore384$100Mmedian roundOct 2026last seen
  17. 17Balderton CapitalDeploying nowVC firm · United Kingdom368$30Mmedian roundOct 2026last seen
  18. 18Endeavor CatalystDeploying nowCorporate VC · United States318$30Mmedian roundOct 2026last seen
  19. 19Quiet CapitalDeploying nowVC firm · United States283$17Mmedian roundOct 2026last seen
  20. 20Valor Equity PartnersDeploying nowVC firm · United States261$50Mmedian roundNov 2026last seen
  21. 21CDP Venture CapitalDeploying nowVC firm · Italy227$3.9Mmedian roundOct 2026last seen
  22. 22AlvenDeploying nowVC firm · France192$15Mmedian roundNov 2026last seen
  23. 23Cherry VenturesDeploying nowVC firm · Germany179$13Mmedian roundOct 2026last seen
  24. 24Bayern KapitalDeploying nowGovernment · Germany173$7.1Mmedian roundOct 2026last seen
  25. 25360 CapitalDeploying nowVC firm · France167$7.8Mmedian roundNov 2026last seen
114 more on this list

All 139 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 B cleantech investors

Who are the most active series B cleantech investors?

By cheques observed, the most active are Techstars, National Science Foundation, Andreessen Horowitz, Accel and Lightspeed Venture Partners.

How many series B cleantech investors are there?

139 are on record. 85% made an investment in the last 12 months and 57% have led a round.

Which stages do series B cleantech investors back?

Of the rounds with a named stage in the last 12 months, mostly Series A (24%) and Seed (23%).

How big are the rounds series B cleantech investors join?

The typical (median) round among the leading investors here is $15M.

Which sectors do series B cleantech investors back most?

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

Which series B cleantech investors lead the most rounds?

Andreessen Horowitz (114 led), Accel (103 led) and Lightspeed Venture Partners (83 led).

Where are series B cleantech investors based?

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

What have series B 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 Thinking Machines Lab (Other, Nov 2026, with Accel).

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