Co-investors · VC firm · United States

Who invests with InterWest Partners

96 investors have backed two or more of the 86 startups InterWest Partners has backed in rounds we track. Grouped by kind, each ranked by how many of these startups it shares; Canaan shares the most, 6.

96co-investors
5kinds
Canaanmost shared (6)
VC firmsmost common kind

InterWest Partners's whole portfolioInterWest Partners's profile

VC firms

70

+46 more

Private equity and asset managers

10

Corporate investors

7

Angels and networks

5

Growth funds

4

Segment by segment

VC firms

70 investors

  1. CanaanVC firmUnited States6 backed
  2. New Enterprise AssociatesVC firmUnited States5 backed
  3. Johnson & Johnson Development Corporation (JJDC)VC firmUnited States5 backed
  4. Correlation VenturesVC firmUnited States5 backed
  5. FelicisVC firmUnited States5 backed
  6. Versant VenturesVC firmUnited States5 backed
  7. Bessemer Venture PartnersVC firmUnited States4 backed
  8. DFJVC firmUnited States4 backed

Private equity and asset managers

10 investors

  1. Frazier Healthcare PartnersPrivate equityUnited States4 backed
  2. OrbiMedPrivate equityUnited States3 backed
  3. MPM CapitalPrivate equityUnited States3 backed
  4. Goldman SachsPrivate equityUnited States2 backed
  5. Oak Investment PartnersPrivate equityUnited States2 backed
  6. SCSabby CapitalPrivate equityUnited States2 backed
  7. Vivo CapitalPrivate equityUnited States2 backed
  8. Perceptive AdvisorsAsset managerUnited States2 backed

Corporate investors

7 investors

  1. Google VenturesCorporate investorUnited States5 backed
  2. Intel CapitalCorporate investorUnited States3 backed
  3. Salesforce VenturesCorporate investorUnited States2 backed
  4. CVCiti VenturesCorporate investorUnited States2 backed
  5. QualcommCorporate investorUnited States2 backed
  6. PfizerCorporate investorUnited States2 backed
  7. Qualcomm VenturesCorporate investorUnited States2 backed

Angels and networks

5 investors

  1. PBPaul BuchheitAngel investorUnited States3 backed
  2. 5G500 GlobalAngel investorUnited States3 backed
  3. TKThomas KorteAngel investor-3 backed
  4. RCRon ConwayAngel investor-2 backed
  5. SASam AltmanAngel investorUnited States2 backed

Growth funds

4 investors

  1. TAThree Arch PartnersGrowth fundUnited States4 backed
  2. Sprout GroupGrowth fundUnited States2 backed
  3. Investor Growth Capital LimitedGrowth fundSweden2 backed
  4. St. Paul Venture CapitalGrowth fundUnited States2 backed

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

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Portfolio mapInterWest Partners portfolio map61 startups · $5.4BSector portfolioInterWest Partners' Biotech portfolio21 startups · $3.0BCo-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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