Co-investors · VC firm · United States

Who invests with 645 Ventures

55 investors have backed two or more of the 81 startups 645 Ventures has backed in rounds we track. Grouped by kind, each ranked by how many of these startups it shares; FJ Labs shares the most, 6.

55co-investors
2kinds
FJ Labsmost shared (6)
VC firmsmost common kind

645 Ventures's whole portfolio645 Ventures's profile

Segment by segment

VC firms

52 investors

  1. FJ LabsVC firmUnited States6 backed
  2. Alumni VenturesVC firmUnited States5 backed
  3. General CatalystVC firmUnited States4 backed
  4. FlybridgeVC firmUnited States4 backed
  5. Correlation VenturesVC firmUnited States4 backed
  6. Liquid 2 VenturesVC firmUnited States4 backed
  7. Eniac VenturesVC firmUnited States4 backed
  8. Andreessen HorowitzVC firmUnited States4 backed

Private equity and asset managers

3 investors

  1. GaingelsPrivate equityUnited States6 backed
  2. Pioneer FundPrivate equityUnited States3 backed
  3. Washington Harbour Partners LpPrivate equityUnited States2 backed

How this map is made. Every investor here has backed two or more of the same startups as 645 Ventures, in rounds we track. Grouped by kind, each ranked by how many startups it shares with 645 Ventures. Rebuilt nightly; updated 15 November 2026.

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