Portfolio Co Investors 2026 for Fifty Years: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Fifty Years accounts for 10 tracked companies with verified cap-table data, 10 of which disclose round sizes totalling $1.4B. The median disclosed raise is $60M, and the largest is Solugen at $640M, ahead of The Bot Company ($300M) and Nobell Foods ($100M).
The names that recur most often on these co-invested cap tables are Fifty Years (10 companies), Y Combinator (5 companies), Refactor Capital (3 companies), Lowercarbon Capital (2 companies), Northpond Ventures (2 companies), GIC (1 company). By latest disclosed round, the market skews Series A (4), Series B (2), Series D (1), Growth (1).