/
Log inGet free API keyAccount
Menu
InvestorsCompaniesFit CheckerDocsPricingGet free API key

Investors / United States / S28 Capital / Co-investors

S28 Capital co-investors

Who invests alongside S28 Capital · Venture capital · San Francisco, CA, United States

S28 Capital shares at least one checked portfolio company with 6 other investors. It backs companies most often with Andreessen Horowitz (1), CRV (1) and Georgian (1), and 100% of its 1 checked company have another investor VCinfo tracks.

S28 Capital's full profileCompare with Andreessen HorowitzGET /v1/firms/s28capital.com/coinvestors
6co-investors
1companies backed with another investorof 1 checked
100%of its portfolio is co-backed
Andreessen Horowitzmost frequent co-investor1 shared company

Co-investor network

the 6 firms it shares most with, and the companies they back together
18 shared companies14 shared companies13 shared companies7 shared companies4 shared companies4 shared companies3 shared companies3 shared companies2 shared companies2 shared companies2 shared companies2 shared companies2 shared companiesAndreessen Horowitz: 1 shared companiesAndreessen Horowitz1CRV: 1 shared companiesCRV1Georgian: 1 shared companiesGeorgian1Madrona: 1 shared companiesMadrona1Preston-Werner Ventures: 1 shared companiesPreston-Werner Ventur…1South Park Commons: 1 shared companiesSouth Park Commons1
Shared portfolio companies with S28 CapitalFirms that also back companies together

Circle size is the number of companies shared with S28 Capital; a line joins two co-investors that back at least two companies together.

All co-investors

ranked by shared portfolio companies
#InvestorSharedCompanies both back
1Andreessen HorowitzVenture capital · United States1
Clerk
Compare · Its co-investors
2CRVVenture capital · United States1
Clerk
Compare · Its co-investors
3GeorgianVenture capital · Canada1
Clerk
Compare · Its co-investors
4MadronaVenture capital · United States1
Clerk
Compare · Its co-investors
5Preston-Werner VenturesVenture capital1
Clerk
Compare · Its co-investors
6South Park CommonsVenture capital · United States1
Clerk
Compare · Its co-investors
Take this list with you. GET /v1/firms/s28capital.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 S28 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 S28 Capital's co-investors as data

Pull this ranked list, S28 Capital's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when S28 Capital adds a company.

Work email, sign-in link by email. Already have an account? Log in
Your API keyRead the docs
  • 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/s28capital.com/coinvestors

# also
GET /v1/firms/s28capital.com
GET /v1/firms/s28capital.com/portfolio
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing