PersonInvestorFounder
Tammie Siew
Tammie Siew is a General Partner and Co-Founder at Pebblebed, a San Francisco-based deep tech venture capital firm focused on foundational infrastructure—AI simulation engines, robot operating systems, developer platforms, and formal verification systems. A Cornell-educated economist and literature scholar who spent years investing at Sequoia Capital Singapore before co-founding a healthcare startup, she brings a rare operator-investor lens to backing the infrastructure layer of next-generation technology. Pebblebed's Fund II closed at $125M in 2024, with roughly 35 investments backing companies like Augment Code, OpenMind, Zeromatter, Lemurian Labs, and Logical Intelligence.
venture capitalgeneral partnerpebblebeddeep techairobotics
