Portfolio Companies 2026 for Greylock: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Greylock accounts for 54 tracked companies with verified cap-table data, 54 of which disclose round sizes totalling $10B. The median disclosed raise is $102M, and the largest is Aurora at $1.7B, ahead of Sorare ($743M) and Zenefits ($584M).
The names that recur most often on these portfolio cap tables are Greylock (54 companies), Andreessen Horowitz (13 companies), Founders Fund (8 companies), Accel (7 companies), General Catalyst (7 companies), Sequoia Capital (6 companies). By latest disclosed round, the market skews Series B (16), Series A (9), Series C (7), Series D (5).
Companies tracked: 54
Disclosed funding total: $10B across 54 companies
Median disclosed raise: $102M
Largest raise: Aurora — $1.7B
Stage mix: Series B 16 · Series A 9 · Series C 7 · Series D 5
