Portfolio Co Investors 2026 for Versant Ventures: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Versant Ventures accounts for 55 tracked companies with verified cap-table data, 55 of which disclose round sizes totalling $7B. The median disclosed raise is $100M, and the largest is Tubulis at $575M, ahead of RayzeBio ($418M) and Vividion Therapeutics ($362M).
The names that recur most often on these co-invested cap tables are Versant Ventures (55 companies), Casdin Capital (6 companies), Samsara BioCapital (5 companies), Alexandria Venture Investments (5 companies), RA Capital Management (5 companies), Logos Capital (5 companies). By latest disclosed round, the market skews Series A (29), Series B (10), Series C (7), Series D (3).
Companies tracked: 55
Disclosed funding total: $7B across 55 companies
Median disclosed raise: $100M
Largest raise: Tubulis — $575M
Stage mix: Series A 29 · Series B 10 · Series C 7 · Series D 3
