Portfolio Co Investors 2026 for Addition: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Addition accounts for 45 tracked companies with verified cap-table data, 45 of which disclose round sizes totalling $13B. The median disclosed raise is $122M, and the largest is Groq at $3B, ahead of Base Power ($1.2B) and Snyk ($1.2B).
The names that recur most often on these co-invested cap tables are Addition (45 companies), Tiger Global (6 companies), Accel (5 companies), Andreessen Horowitz (4 companies), General Catalyst (4 companies), Spark Capital (4 companies). By latest disclosed round, the market skews Series B (11), Series C (10), Series A (8), Series D (5).
Companies tracked: 45
Disclosed funding total: $13B across 45 companies
Median disclosed raise: $122M
Largest raise: Groq — $3B
Stage mix: Series B 11 · Series C 10 · Series A 8 · Series D 5
