Investor Lists

PE firms backing Open Source

Updated 7 November 2026

PE firms we have observed in an open Source round in the last two years.

See all 24 →The top 24
24investors on the listNo change this week
557cheques in 12 months-8% against the market
$41Mmedian round they joined+406% against the market median
88%wrote a cheque in 12 months
67%have led a round

The Top 24

Ordered by cheques observed, never by anything anyone paid for

Deploying now (21)

  1. 1GaingelsDeploying nowPrivate equity · United States1,010$8Mmedian roundOct 2026last seen
  2. 2CitibankDeploying nowGrowth equity · United States566$20Mmedian roundOct 2026last seen
  3. 3Pioneer FundDeploying nowPrivate equity · United States551$2.9Mmedian roundNov 2026last seen
  4. 4DST GlobalDeploying nowPrivate equity · United Kingdom158$81Mmedian roundOct 2026last seen
  5. 5T. Rowe PriceDeploying nowPrivate equity · United States136$400Mmedian roundNov 2026last seen
  6. 6GICDeploying nowPrivate equity · Singapore92$200Mmedian roundOct 2026last seen
  7. 7MubadalaDeploying nowPrivate equity · United Arab Emirates91$80Mmedian roundSept 2026last seen
  8. 8Sorenson CapitalDeploying nowPrivate equity · United States74$25Mmedian roundOct 2026last seen
  9. 9Vista Equity PartnersDeploying nowPrivate equity · United States64$40Mmedian roundOct 2026last seen
  10. 10AdditionDeploying nowPrivate equity · United States58$38Mmedian roundSept 2026last seen
  11. 11Dragoneer InvestmentDeploying nowPrivate equity · United States39$500Mmedian roundOct 2026last seen
  12. 12DSTDeploying nowGrowth equity16$215Mmedian roundSept 2026last seen
  13. 131789 CapitalDeploying nowPrivate equity · United States15$425Mmedian roundOct 2026last seen
  14. 14One PeakDeploying nowGrowth equity · United Kingdom14$34Mmedian roundJul 2026last seen
  15. 15WCM Investment ManagementDeploying nowGrowth equity · United States10$1.2Bmedian roundNov 2026last seen
  16. 16P1 VenturesquietPrivate equity · United States7$8Mmedian roundOct 2025last seen
  17. 17FigmaDeploying nowGrowth equity · United States6$41Mmedian roundFeb 2026last seen
  18. 18Lytical VenturesDeploying nowPrivate equity · United States6$9.6Mmedian roundOct 2026last seen
  19. 19WiproDeploying nowGrowth equity6$14Mmedian roundSept 2026last seen
  20. 20AlkeonDeploying nowPrivate equity · United States5$130Mmedian roundJun 2026last seen
  21. 21Microsoft's M12Deploying nowGrowth equity4$54Mmedian roundMay 2026last seen
  22. 22Red Cell PartnersquietPrivate equity · United States1$3Mmedian roundMar 2025last seen
  23. 23Emilio EscobarquietGrowth equity1$25Mmedian roundNov 2025last seen
  24. 24P7Deploying nowGrowth equity1$150Mmedian roundSept 2026last seen

Quick answers about PE firms backing Open Source

Who are the most active PE firms backing Open Source?

By cheques observed, the most active are Gaingels, Citibank, Pioneer Fund, DST Global and T. Rowe Price.

How many PE firms backing Open Source are there?

24 are on record. 88% made an investment in the last 12 months and 67% have led a round.

Which stages do PE firms backing Open Source back?

Of the rounds with a named stage in the last 12 months, mostly Seed (18%) and Series A (18%).

How big are the rounds PE firms backing Open Source join?

The typical (median) round among the leading investors here is $41M.

Which sectors do PE firms backing Open Source back most?

In the last 12 months, mostly AI, Fintech and Aerospace & Space.

Which PE firms backing Open Source lead the most rounds?

GIC (17 led), DST Global (12 led) and T. Rowe Price (11 led).

Where are PE firms backing Open Source based?

Among the most active, most are based in the United States (15), the United Kingdom (2) and Singapore (1).

What have PE firms backing Open Source invested in recently?

Recent rounds include Nyquis (Seed, Nov 2026, with Pioneer Fund), Zipline (Growth, Nov 2026, with WCM Investment Management) and fal (Nov 2026, with T. Rowe Price).

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