Pebblebed is an early-stage venture capital fund co-founded by Pamela Vagata and Keith Adams as Managing Partners, built around a high-conviction, high-concentration investment strategy aimed at technologists. Pebblebed's Twitter Score is 10 out of 1000 as of September 2026, ranking #90,909 among 486,573 tracked accounts.
Pebblebed was co-founded by Pamela Vagata and Keith Adams, with Tammie Siew serving as COO and General Partner. The fund targets roughly 20 investments per fund and focuses on founders tackling technically demanding problems. Beyond capital deployment, Pebblebed describes itself as a venture capital firm, an AI research lab, an event space, and a home for builders.
Pebblebed's portfolio is concentrated across AI, computing infrastructure, robotics, biotechnology, cybersecurity, and quantum-resistant cryptography. In 2024, Pebblebed Fund II, LP filed a Form D disclosing a total offering amount of $125,000,000. Pebblebed has published 141 posts on the platform. The account has been mentioned by 10 accounts, with 13 total mentions.
Pebblebed's fund portfolio includes Ulysses Maritime Technologies, Inc and Adaptive.
Who follows Pebblebed on X?
The accounts that follow Pebblebed include 47 founders, 22 angel investors, 4 influencers and 1 VCs. Among them are Soona, Kayvon, Sigil Wen, Kim-Mai Cutler, Henri Stern and Nikhil Srinivasan.