Co-investors · VC firm · United States

Who invests with Flagship Pioneering

15 investors have backed two or more of the 44 startups Flagship Pioneering has backed in rounds we track. Grouped by kind, each ranked by how many of these startups it shares; Fidelity shares the most, 7.

15co-investors
2kinds
Fidelitymost shared (7)
VC firmsmost common kind

Flagship Pioneering's whole portfolioFlagship Pioneering's profile

VC firms

9

Private equity and asset managers

6

Segment by segment

VC firms

9 investors

  1. FidelityVC firmUnited States7 backed
  2. Alexandria Real Estate EquitiesVC firmUnited States6 backed
  3. AVAlexandria Venture InvestmentsVC firm-6 backed
  4. Casdin CapitalVC firmUnited States3 backed
  5. Mayo ClinicInvestment firmUnited States3 backed
  6. Partners InvestmentVC firmSouth Korea3 backed
  7. Polaris PartnersVC firmUnited States3 backed
  8. ARCH Venture PartnersVC firmUnited States3 backed

Private equity and asset managers

6 investors

  1. InvusPrivate equityUnited States6 backed
  2. Alaska Permanent Fund CorporationInvestorUnited States4 backed
  3. Baillie GiffordAsset managerUnited Kingdom4 backed
  4. ArchHedge fund-3 backed
  5. BlackRockAsset managerUnited States3 backed
  6. Gates FoundationInvestorUnited States2 backed

How this map is made. Every investor here has backed two or more of the same startups as Flagship Pioneering, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Flagship Pioneering. Rebuilt nightly; updated 15 November 2026.

More portfolio maps

All portfolios
Portfolio mapFlagship Pioneering portfolio map39 startups · $4.5BSector portfolioFlagship Pioneering's Biotech portfolio25 startups · $3.1BCo-investorsWho invests with Techstars991 co-investorsCo-investorsWho invests with SV Angel988 co-investorsCo-investorsWho invests with Andreessen Horowitz977 co-investorsCo-investorsWho invests with Alumni Ventures911 co-investors

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