Most Backed Biotech Startups in South San Francisco, CA 2026
6 Biotech startups in South San Francisco, CA ranked by verified backer count, led by Addition Therapeutics, Maze Therapeutics, Cartography Biosciences.
Biotech in South San Francisco, CA accounts for 15 tracked companies with verified cap-table data, 15 of which disclose round sizes totalling $3.4B. The median disclosed raise is $200M, and the largest is ORIC Pharmaceuticals at $900M, ahead of Alumis ($529M) and Terremoto Biosciences ($250M).
The names that recur most often on these biotech cap tables are Alexandria Venture Investments (5 companies), Eli Lilly and Company (4 companies), Janus Henderson Investors (3 companies), EcoR1 Capital (2 companies), Foresite Capital (2 companies), venBio Partners (2 companies). By latest disclosed round, the market skews Series B (5), Series A (4), Series D (3), IPO (1).
Companies tracked: 15
Disclosed funding total: $3.4B across 15 companies
Median disclosed raise: $200M
Largest raise: ORIC Pharmaceuticals — $900M
Stage mix: Series B 5 · Series A 4 · Series D 3 · IPO 1
Most recent dated round: 2026-06-10
Best funded Biotech in South San Francisco, CA companies
