Portfolio Co Investors 2026 for Pioneer Square Labs: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Pioneer Square Labs accounts for 5 tracked companies with verified cap-table data, 5 of which disclose round sizes totalling $320M. The median disclosed raise is $42M, and the largest is Starfish Space at $151M, ahead of Dropzone AI ($57M) and JetClosing ($42M).
The names that recur most often on these co-invested cap tables are Pioneer Square Labs (5 companies), Toyota Ventures (3 companies), Point72 Ventures (2 companies), Activate Capital (1 company), Shield Capital (1 company), Industrious Ventures (1 company). By latest disclosed round, the market skews Series B (5).