Investors / United States / SBXi / Co-investors
SBXi co-investors
Who invests alongside SBXi · Venture capital · Cambridge, MA, United States
SBXi shares at least one checked portfolio company with 92 other investors. It backs companies most often with Y Combinator (13), E14 Fund (6) and Creative Destruction Lab (3), and 84% of its 44 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 SBXi; a line joins two co-investors that back at least two companies together.
All co-investors
top 60 of 92, ranked by shared portfolio companies
A co-investor is a firm whose own portfolio page lists a company that SBXi'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 SBXi's co-investors as data
Pull this ranked list, SBXi's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when SBXi adds a company.
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$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/sbxi.com/coinvestors
# also
GET /v1/firms/sbxi.com
GET /v1/firms/sbxi.com/portfolio