Investor Lists

Open Source investors in Europe

Updated 7 November 2026

Firms observed backing an open Source company in Europe in the last two years, wherever the firm is based.

See all 36 →The top 25
36investors on the listNo change this week
954cheques in 12 months-3% against the market
$8.5Mmedian round they joined+7% against the market median
81%wrote a cheque in 12 months
61%have led a round

The Top 25

Ordered by cheques observed, never by anything anyone paid for

Deploying now (25)

  1. 1Sequoia CapitalDeploying nowVC firm · United States2,099$35Mmedian roundNov 2026last seen
  2. 2AccelDeploying nowVC firm · United States1,341$32Mmedian roundNov 2026last seen
  3. 3BpifranceDeploying nowGovernment · France1,151$4.5Mmedian roundOct 2026last seen
  4. 4Bain Capital VenturesDeploying nowVC firm · United States524$27Mmedian roundNov 2026last seen
  5. 5SeedcampDeploying nowVC firm · United Kingdom519$5Mmedian roundNov 2026last seen
  6. 6Spark CapitalDeploying nowVC firm · United States471$40Mmedian roundOct 2026last seen
  7. 7BlackRockDeploying nowAsset manager · United States296$130Mmedian roundNov 2026last seen
  8. 8Point Nine CapitalDeploying nowVC firm · Germany184$8.6Mmedian roundNov 2026last seen
  9. 9Costanoa VenturesDeploying nowVC firm · United States154$12Mmedian roundSept 2026last seen
  10. 10Firstminute CapitalDeploying nowVC firm · United Kingdom123$6.4Mmedian roundOct 2026last seen
  11. 11Frontline VenturesDeploying nowVC firm · United Kingdom98$4.6Mmedian roundSept 2026last seen
  12. 12Iris CapitalDeploying nowVC firm · France96$25Mmedian roundOct 2026last seen
  13. 13AVPDeploying nowInvestment firm · United States94$23Mmedian roundOct 2026last seen
  14. 14HarbourVest PartnersDeploying nowFund of funds · United States93$54Mmedian roundJun 2026last seen
  15. 15Unusual VenturesDeploying nowVC firm · United States92$10Mmedian roundOct 2026last seen
  16. 16MubadalaDeploying nowPrivate equity · United Arab Emirates91$80Mmedian roundSept 2026last seen
  17. 17Guillermo RauchDeploying nowVC firm76$10Mmedian roundNov 2026last seen
  18. 18Bosch VenturesDeploying nowCorporate VC · Germany75$35Mmedian roundOct 2026last seen
  19. 1942CAPDeploying nowVC firm · Germany56$4.8Mmedian roundOct 2026last seen
  20. 20CapitalGDeploying nowCorporate VC · Canada51$213Mmedian roundOct 2026last seen
  21. 21Colorado Office of Economic Development and International TradeDeploying nowGovernment · United States47$250Kmedian roundMay 2026last seen
  22. 22Alliance VCDeploying nowVC firm · Norway43$6.9Mmedian roundSept 2026last seen
  23. 23Thomas WolfDeploying nowVC firm41$8Mmedian roundOct 2026last seen
  24. 24One PeakDeploying nowGrowth equity · United Kingdom14$34Mmedian roundJul 2026last seen
  25. 25Sunflower CapitalDeploying nowVC firm · United States6$19Mmedian roundJul 2026last seen
11 more on this list

All 36 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 →

Quick answers about open Source investors in Europe

Who are the most active open Source investors in Europe?

By cheques observed, the most active are Sequoia Capital, Accel, Bpifrance, Bain Capital Ventures and Seedcamp.

How many open Source investors in Europe are there?

36 are on record. 81% made an investment in the last 12 months and 61% have led a round.

Which stages do open Source investors in Europe back?

Of the rounds with a named stage in the last 12 months, mostly Seed (23%) and Series A (21%).

How big are the rounds open Source investors in Europe join?

The typical (median) round among the leading investors here is $19M.

Which sectors do open Source investors in Europe back most?

In the last 12 months, mostly AI, Fintech and Cybersecurity.

Which open Source investors in Europe lead the most rounds?

Accel (103 led), Sequoia Capital (91 led) and Bain Capital Ventures (31 led).

Where are open Source investors in Europe based?

Among the most active, most are based in the United States (11), the United Kingdom (4) and Germany (3).

What have open Source investors in Europe invested in recently?

Recent rounds include Thinking Machines Lab (Other, Nov 2026, with Accel), Granit (Seed, Nov 2026, with Seedcamp) and Titan OS (Other, Nov 2026, with BlackRock).

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