Co-investors · Private equity · United States

Who invests with Pioneer Fund

197 investors have backed two or more of the 365 startups Pioneer Fund has backed in rounds we track. Grouped by kind, each ranked by how many of these startups it shares; Y Combinator shares the most, 336.

197co-investors
6kinds
Y Combinatormost shared (336)
VC firmsmost common kind

Pioneer Fund's whole portfolioPioneer Fund's profile

VC firms

170

+146 more

Accelerators

7

Corporate investors

6

Private equity and asset managers

6

Angels and networks

5

Government funds

3

Segment by segment

VC firms

170 investors

  1. Liquid 2 VenturesVC firmUnited States52 backed
  2. Rebel FundVC firmUnited States25 backed
  3. Alumni VenturesVC firmUnited States22 backed
  4. Andreessen HorowitzVC firmUnited States16 backed
  5. FundersClubVC firmUnited States16 backed
  6. Unpopular VenturesVC firmUnited States15 backed
  7. Soma CapitalVC firmUnited States15 backed
  8. Goodwater CapitalVC firmUnited States14 backed

Accelerators

7 investors

  1. Y CombinatorAcceleratorUnited States336 backed
  2. Amino CapitalAcceleratorUnited States4 backed
  3. Outlier VenturesAcceleratorUnited Kingdom2 backed
  4. SurgeAcceleratorSingapore2 backed
  5. South Park CommonsAcceleratorUnited States2 backed
  6. Plug and PlayAcceleratorUnited States2 backed
  7. LuminateAcceleratorUnited States2 backed

Corporate investors

6 investors

  1. Coinbase VenturesCorporate investorUnited States4 backed
  2. Samsung NextCorporate investorUnited States4 backed
  3. Google VenturesCorporate investorUnited States2 backed
  4. Lockheed MartinCorporate investorUnited States2 backed
  5. Protocol LabsCorporate investorUnited States2 backed
  6. Eli LillyCorporate investorUnited States2 backed

Private equity and asset managers

6 investors

  1. GaingelsPrivate equityUnited States14 backed
  2. ECEight CapitalFund of fundsUnited Arab Emirates8 backed
  3. T. Rowe PricePrivate equityUnited States2 backed
  4. Altair CapitalPrivate equitySingapore2 backed
  5. Warburg PincusPrivate equityUnited States2 backed
  6. SMBC Venture CapitalInvestment bankJapan2 backed

Angels and networks

5 investors

  1. 5G500 GlobalAngel investorUnited States4 backed
  2. MSMandeep SinghAngel investor-3 backed
  3. SBSahin BoydasAngel investor-2 backed
  4. Angel BridgeAngel networkJapan2 backed
  5. SBScott BelskyAngel investor-2 backed

Government funds

3 investors

  1. National Science FoundationGovernment fundUnited States4 backed
  2. BpifranceGovernment fundFrance3 backed
  3. International Finance CorporationGovernment fundUnited States2 backed

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

More portfolio maps

All portfolios
Portfolio mapPioneer Fund portfolio map289 startups · $5.9BSector portfolioPioneer Fund's AI portfolio171 startups · $2.8BSector portfolioPioneer Fund's Fintech portfolio21 startups · $298MSector portfolioPioneer Fund's Biotech portfolio19 startups · $239MSector portfolioPioneer Fund's Big Data & Analytics portfolio13 startups · $96MSector portfolioPioneer Fund's IT Services portfolio11 startups · $59M

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