Portfolio Co Investors 2026 for 500 Startups: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
500 Startups accounts for 40 tracked companies with verified cap-table data, 40 of which disclose round sizes totalling $4.3B. The median disclosed raise is $81M, and the largest is Astronomer at $385M, ahead of Jüsto ($300M) and Justo ($300M).
The names that recur most often on these co-invested cap tables are 500 Startups (40 companies), Foundation Capital (4 companies), General Atlantic (3 companies), Endure Capital (3 companies), Shorooq Partners (3 companies), Bimbo Ventures (2 companies). By latest disclosed round, the market skews Series B (13), Series C (8), Series D (5), Seed (4).
Companies tracked: 40
Disclosed funding total: $4.3B across 40 companies
Median disclosed raise: $81M
Largest raise: Astronomer — $385M
Stage mix: Series B 13 · Series C 8 · Series D 5 · Seed 4
