Portfolio Co Investors 2026 for Arboretum Ventures: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Arboretum Ventures accounts for 16 tracked companies with verified cap-table data, 16 of which disclose round sizes totalling $2B. The median disclosed raise is $80M, and the largest is EQRx at $750M, ahead of Francis Medical ($160M) and Endogenex ($138M).
The names that recur most often on these co-invested cap tables are Arboretum Ventures (16 companies), Orlando Health Ventures (2 companies), Hatteras Venture Partners (2 companies), HealthQuest Capital (2 companies), 5AM Ventures (2 companies), Lightstone Ventures (2 companies). By latest disclosed round, the market skews Series C (6), Series B (3), Series D (3), Growth (3).
Companies tracked: 16
Disclosed funding total: $2B across 16 companies
Median disclosed raise: $80M
Largest raise: EQRx — $750M
Stage mix: Series C 6 · Series B 3 · Series D 3 · Growth 3
