CRV
CRV (formerly Charles River Ventures) is one of the oldest venture capital firms in the United States, founded in 1970 to commercialize research coming out of MIT. The firm invests early — primarily at the Seed and Series A stages, with occasional Series B — leading rounds in enterprise, consumer, developer tools, security, data infrastructure, AI, and bioengineering companies. CRV has backed more than 750 companies since inception across 18 funds, raising over $4.3 billion (including a recent $600M early-stage fund), and has seen 80-plus of its portfolio companies reach public-company status. Notable investments include DoorDash, Airtable, HubSpot, Datadog, Zendesk, Patreon, Mercury, Vercel, Cursor, Postman, Kong, Tailscale, Ring, and PillPack. The firm is headquartered in San Francisco (52 Zoe Street) with a long-standing Bay Area presence and offices in Menlo Park, CA and Cambridge, MA.
CRV has 154 portfolio companies tracked on the APIs.io network, of which 153 (99%) publish APIs indexed here.
Its highest-rated API providers on the network are HubSpot, Postman, Netezza, SignalFx, Airtable.
Portfolio on the Network
Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.
Exemplar 9 Complete, well-documented, and agent-ready
Strong 6 Solid coverage with minor gaps
Developing 40 Usable, with meaningful gaps to close
Thin 29 Limited public surface area
Emerging 31 Early or largely undocumented
Minimal 38 Almost no public developer surface
Rest of Portfolio
1 further portfolio companies that don’t yet have a provider page on the network.
Scroll for all 1