Portfolio Co Investors 2026 for Costanoa Ventures: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Costanoa Ventures accounts for 25 tracked companies with verified cap-table data, 25 of which disclose round sizes totalling $2B. The median disclosed raise is $50M, and the largest is Alation at $340M, ahead of Leap ($214M) and Kepler Communications ($200M).
The names that recur most often on these co-invested cap tables are Costanoa Ventures (25 companies), Thoma Bravo (2 companies), Andreessen Horowitz (2 companies), Bloomberg Beta (2 companies), Salesforce Ventures (2 companies), Sapphire Ventures (2 companies). By latest disclosed round, the market skews Series B (7), Series C (5), Series A (5), Seed (4).
Companies tracked: 25
Disclosed funding total: $2B across 25 companies
Median disclosed raise: $50M
Largest raise: Alation — $340M
Stage mix: Series B 7 · Series C 5 · Series A 5 · Seed 4
