Investors / Zero Index / Co-investors
Zero Index co-investors
Who invests alongside Zero Index · Venture capital
Zero Index shares at least one checked portfolio company with 218 other investors. It backs companies most often with Y Combinator (49), Transpose Platform (14) and Eight Capital (8), and 97% of its 61 checked companies have another investor VCinfo tracks.
Co-investor network
the 14 firms it shares most with, and the companies they back togetherCircle size is the number of companies shared with Zero Index; a line joins two co-investors that back at least two companies together.
All co-investors
top 60 of 218, ranked by shared portfolio companiesA co-investor is a firm whose own portfolio page lists a company that Zero Index'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
Get Zero Index's co-investors as data
Pull this ranked list, Zero Index's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when Zero Index 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
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/zeroindex.vc/coinvestors
# also
GET /v1/firms/zeroindex.vc
GET /v1/firms/zeroindex.vc/portfolio