Investor Lists

Pre-seed cleantech investors

Updated 7 November 2026

Firms we have watched take part in a pre-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 92 →The top 25
92investors on the listNo change this week
3,032cheques in 12 months-20% against the market
$3Mmedian round they joined-62% against the market median
85%wrote a cheque in 12 months
47%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. 3National Science FoundationDeploying nowGovernment · United States1,869$926Kmedian roundSept 2026last seen
  4. 4Alumni VenturesDeploying nowVC firm · United States1,598$12Mmedian roundNov 2026last seen
  5. 5BpifranceDeploying nowGovernment · France1,151$4.5Mmedian roundOct 2026last seen
  6. 6EIC AcceleratorDeploying nowGovernment · European Union875$4.3Mmedian roundOct 2026last seen
  7. 7AntlerDeploying nowVC firm · United Kingdom729$1Mmedian roundNov 2026last seen
  8. 8US Department of EnergyDeploying nowGovernment · United States453$2Mmedian roundSept 2026last seen
  9. 9SFC CapitalDeploying nowAngel network · United Kingdom379$431Kmedian roundNov 2026last seen
  10. 10K FundDeploying nowVC firm · Spain340$3Mmedian roundOct 2026last seen
  11. 11Precursor VenturesDeploying nowVC firm · United States261$4Mmedian roundOct 2026last seen
  12. 12Scottish EnterpriseDeploying nowGovernment · United Kingdom256$2.1Mmedian roundNov 2026last seen
  13. 13Artesian VCDeploying nowAsset manager · Australia201$2Mmedian roundOct 2026last seen
  14. 14AscensionDeploying nowVC firm · United Kingdom190$3.4Mmedian roundOct 2026last seen
  15. 15Inflection Point VenturesDeploying nowVC firm · United States181$1Mmedian roundOct 2026last seen
  16. 16InnosuisseDeploying nowGovernment · Switzerland144$1.9Mmedian roundAug 2026last seen
  17. 17AGORANOVDeploying nowAccelerator · France138$3Mmedian roundJul 2026last seen
  18. 18Mana VenturesDeploying nowVC firm · United States137$6.2Mmedian roundNov 2026last seen
  19. 19N1Deploying nowVC firm · Luxembourg134$1.4Mmedian roundSept 2026last seen
  20. 20HaatchDeploying nowVC firm · United Kingdom126$1.5Mmedian roundNov 2026last seen
  21. 21InvestibleDeploying nowVC firm · Australia123$2.4Mmedian roundAug 2026last seen
  22. 22InnovacorpDeploying nowVC firm · Czechia115$1.1Mmedian roundSept 2026last seen
  23. 23Oxford Science EnterprisesDeploying nowVC firm · United Kingdom108$11Mmedian roundNov 2026last seen
  24. 24British Business BankDeploying nowCorporate VC · United Kingdom105$6.3Mmedian roundNov 2026last seen
  25. 25Oriza HoldingsDeploying nowVC firm · China101$14Mmedian roundOct 2026last seen
67 more on this list

All 92 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 pre-seed cleantech investors

Who are the most active pre-seed cleantech investors?

By cheques observed, the most active are Y Combinator, Techstars, National Science Foundation, Alumni Ventures and Bpifrance.

How many pre-seed cleantech investors are there?

92 are on record. 85% made an investment in the last 12 months and 47% have led a round.

Which stages do pre-seed cleantech investors back?

Of the rounds with a named stage in the last 12 months, mostly Seed (29%) and Pre-seed (24%).

How big are the rounds pre-seed cleantech investors join?

The typical (median) round among the leading investors here is $2.4M.

Which sectors do pre-seed cleantech investors back most?

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

Which pre-seed cleantech investors lead the most rounds?

Y Combinator (11 led), Bpifrance (11 led) and EIC Accelerator (9 led).

Where are pre-seed cleantech investors based?

Among the most active, most are based in the United States (8), the United Kingdom (7) and France (2).

What have pre-seed cleantech investors invested in recently?

Recent rounds include Water Ledger Global (Other, Nov 2026, with Launch Africa), T-Therapeutics (Series B, Nov 2026, with British Business Bank) and firmly (Series A, Nov 2026, with Alumni Ventures).

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