/

Investors / United States / Foresite Capital / Co-investors

Foresite Capital co-investors

Who invests alongside Foresite Capital · Venture capital · West Hollywood, CA, United States

Foresite Capital shares at least one checked portfolio company with 256 other investors. It backs companies most often with RA Capital (22), Altamont Pharmaceutical Holdings (12) and Avoro Capital Advisors (11), and 88% of its 144 checked companies have another investor VCinfo tracks.

256co-investors
127companies backed with another investorof 144 checked
88%of its portfolio is co-backed
RA Capitalmost frequent co-investor22 shared companies

Co-investor network

the 14 firms it shares most with, and the companies they back together
17 shared companies16 shared companies15 shared companies14 shared companies12 shared companies11 shared companies11 shared companies10 shared companies10 shared companies9 shared companies9 shared companies9 shared companies9 shared companies8 shared companies8 shared companies7 shared companies7 shared companies7 shared companies6 shared companies6 shared companies6 shared companies6 shared companies6 shared companies6 shared companiesRA Capital: 22 shared companiesRA Capital22Altamont Pharmaceutical Holdings: 12 shared companiesAltamont Pharmaceutic…12Avoro Capital Advisors: 11 shared companiesAvoro Capital Advisors11Casdin Capital: 11 shared companiesCasdin Capital11Nextech Invest: 10 shared companiesNextech Invest10ARCH Venture Partners: 9 shared companiesARCH Venture Partners9F-Prime Capital: 9 shared companiesF-Prime Capital9Frazier Life Sciences: 8 shared companiesFrazier Life Sciences8NEA: 8 shared companiesNEA8venBio: 8 shared companiesvenBio8Boxer Capital: 7 shared companiesBoxer Capital7General Catalyst: 7 shared companiesGeneral Catalyst7The Column Group: 7 shared companiesThe Column Group7General Atlantic: 6 shared companiesGeneral Atlantic6
Shared portfolio companies with Foresite CapitalFirms that also back companies together

Circle size is the number of companies shared with Foresite Capital; a line joins two co-investors that back at least two companies together.

All co-investors

top 60 of 256, ranked by shared portfolio companies
#InvestorSharedCompanies both back
1RA CapitalVenture capital22Compare · Its co-investors
2Altamont Pharmaceutical HoldingsUnited States12Compare · Its co-investors
3Avoro Capital AdvisorsUnited States11Compare · Its co-investors
4Casdin CapitalVenture capital · United States11Compare · Its co-investors
5Nextech InvestVenture capital · Switzerland10Compare · Its co-investors
6ARCH Venture PartnersVenture capital · United States9Compare · Its co-investors
7F-Prime CapitalVenture capital · United States9Compare · Its co-investors
8Frazier Life SciencesVenture capital · United States8Compare · Its co-investors
9NEAVenture capital · United States8Compare · Its co-investors
10venBioVenture capital · United States8Compare · Its co-investors
11Boxer CapitalVenture capital · United States7Compare · Its co-investors
12General CatalystVenture capital · United States7Compare · Its co-investors
13The Column GroupVenture capital · United States7Compare · Its co-investors
14General AtlanticVenture capital · United States6Compare · Its co-investors
15SofinnovaVenture capital · United States6Compare · Its co-investors
16Vivo CapitalVenture capital · United States6Compare · Its co-investors
17Aisling CapitalVenture capital · United States5Compare · Its co-investors
18Atlas VentureVenture capital · United States5Compare · Its co-investors
19Bessemer Venture PartnersVenture capital · United States5Compare · Its co-investors
20Decheng CapitalVenture capital · United States5Compare · Its co-investors
21Longitude CapitalVenture capital · United States5Compare · Its co-investors
22Sanofi VenturesCorporate VC5Compare · Its co-investors
23Catalio Capital ManagementVenture capital · United States4Compare · Its co-investors
24GVVenture capital · United States4Compare · Its co-investors
25Lightspeed Venture PartnersVenture capital · United States4Compare · Its co-investors
26Lightstone VenturesVenture capital · United States4Compare · Its co-investors
27Lilly Asia VenturesVenture capital · China4Compare · Its co-investors
28Lux CapitalVenture capital · United States4Compare · Its co-investors
29Omega FundsVenture capital · United States4Compare · Its co-investors
30OMX VenturesVenture capital · United States4Compare · Its co-investors
31SoftBank Vision FundVenture capital · United Kingdom4Compare · Its co-investors
32SV AngelVenture capital · United States4Compare · Its co-investors
33Versant VenturesVenture capital · United States4Compare · Its co-investors
344CatalyzerUnited States3Compare · Its co-investors
358VCVenture capital · United States3Compare · Its co-investors
36Advent Life SciencesVenture capital · United Kingdom3Compare · Its co-investors
37Agent CapitalVenture capital · United States3Compare · Its co-investors
38Andreessen HorowitzVenture capital · United States3Compare · Its co-investors
39CTI Life Sciences FundVenture capital · Canada3Compare · Its co-investors
40EcoR1 CapitalVenture capital · United States3Compare · Its co-investors
41Oak HC/FTVenture capital · United States3Compare · Its co-investors
42Pivotal Life SciencesVenture capital · United States3Compare · Its co-investors
43Prospect Venture PartnersVenture capital · United States3Compare · Its co-investors
44SemperVirens Venture CapitalVenture capital · United States3Compare · Its co-investors
45Sequoia CapitalVenture capital · United States3Compare · Its co-investors
46SR OneVenture capital · United States3Compare · Its co-investors
47Third Rock VenturesVenture capital · United States3Compare · Its co-investors
48UPMC EnterprisesCorporate VC · United States3Compare · Its co-investors
49VenrockVenture capital · United States3Compare · Its co-investors
50Vida VenturesVenture capital · United States3Compare · Its co-investors
515AM VenturesVenture capital · United States2Compare · Its co-investors
52AlleyCorpVenture capital · United States2Compare · Its co-investors
53ARTISVenture capital · United States2Compare · Its co-investors
54Ascenta CapitalVenture capital · United States2Compare · Its co-investors
55AtomicUnited States2Compare · Its co-investors
56Bay City CapitalVenture capital · United States2Compare · Its co-investors
57Biomatics CapitalVenture capital · United States2Compare · Its co-investors
58Breyer CapitalVenture capital · United States2Compare · Its co-investors
59Camford CapitalVenture capital · United States2Compare · Its co-investors
60Claremont Creek VenturesVenture capital · United States2Compare · Its co-investors
Showing the top 60 of 256. GET /v1/firms/foresitecapital.com/coinvestors returns the ranked list as JSON for a CRM, a sheet or an AI agent: 25 firms a call on the free plan, 100 on Pro.
Get free API keyAPI docs

A co-investor is a firm whose own portfolio page lists a company that Foresite Capital's page lists too, both checked against the company's site. It shows who backs the same companies, not who joined the same round. How the data is graded

Free account · no card

Get Foresite Capital's co-investors as data

Pull this ranked list, Foresite Capital's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when Foresite Capital adds a company.

Work email, sign-in link by email. Already have an account? Log in
  • Ask AI5 plain-English investor searches a day
  • Full listsEvery portfolio row and two-firm overlap
  • API and MCP100 REST or MCP calls a month, one key
  • AlertsFollow 5 investors for portfolio and fund changes
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/foresitecapital.com/coinvestors

# also
GET /v1/firms/foresitecapital.com
GET /v1/firms/foresitecapital.com/portfolio
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing