Investors / United States / Greylock / Co-investors
Greylock co-investors
Who invests alongside Greylock · Venture capital · San Francisco, CA, United States
Greylock shares at least one checked portfolio company with 675 other investors. It backs companies most often with Andreessen Horowitz (19), Lightspeed Venture Partners (17) and Sequoia Capital (17), and 95% of its 152 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 Greylock; a line joins two co-investors that back at least two companies together.
All co-investors
top 60 of 675, ranked by shared portfolio companiesA co-investor is a firm whose own portfolio page lists a company that Greylock'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 Greylock's co-investors as data
Pull this ranked list, Greylock's portfolio and any firm's profile through one API key or MCP, compare portfolios side by side, and get an email when Greylock adds a company.
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$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/greylock.com/coinvestors
# also
GET /v1/firms/greylock.com
GET /v1/firms/greylock.com/portfolio