Keith Adams // Pebblebed (@keithmadams) — Twitter Score 19 out of 1000

Keith Adams Pebblebed is a systems engineer and venture capitalist who co-founded Pebblebed, a venture-capital fund where he serves as Managing Partner. Keith Adams Pebblebed's Twitter Score is 19 out of 1000 as of September 2026, ranking #51,985 among 486,573 tracked accounts.

Keith Adams Pebblebed previously worked at Slack as Chief Architect and formerly at Facebook, where he was the initial instigator of Facebook AI Research (FAIR) and helped hire and build out its early research and engineering team. He also started HipHop VM inside Facebook, a project that reimagined how PHP was executed at scale. Before that, he previously worked at VMware.

Keith Adams Pebblebed has filed SEC Form D disclosures for both Pebblebed Fund I, LP and Pebblebed Fund II, LP, each classified as a venture-capital fund, with Adams listed as an Executive Officer and as a manager or managing member of the respective general partners. Keith Adams Pebblebed's account has published 1,361 posts and has been mentioned by 13 accounts, totaling 44 mentions.

Who follows Keith Adams Pebblebed on X?

The accounts that follow Keith Adams Pebblebed include 78 founders, 26 angel investors, 9 influencers and 1 VCs, among them Marc Andreessen, Andrej Karpathy, Jake Brukhman, Antonio Garca Martnez agm.eth, Roon and Robert Scoble.