Portfolio Co Investors 2026 for Rethink Impact: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Rethink Impact accounts for 4 tracked companies with verified cap-table data, 4 of which disclose round sizes totalling $507M. The median disclosed raise is $50M, and the largest is Spring Health at $400M, ahead of Neurotrack ($50M) and Parallel Strategy ($49M).
The names that recur most often on these co-invested cap tables are Rethink Impact (4 companies), Social Capital (2 companies), Generation Investment Management (1 company), Kinnevik (1 company), Tiger Global (1 company), Guardian Life Insurance (1 company). By latest disclosed round, the market skews Series E (1), Series B (1), Series A (1).