Greylock

Portfolio Co Investors 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 co-invested 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).

Best funded Greylock companies

  1. Aurora — $1.7B (latest: Seed)
  2. Sorare — $743M (latest: Series B)
  3. Zenefits — $584M (latest: Series C)
  4. Upwind Security — $558M (latest: Series B)
  5. Marqeta — $500M (latest: IPO)
  6. Blend — $365M
  7. Chronosphere — $343M (latest: Series C)
  8. Taxfix — $330M (latest: Series D)
  9. Instabase — $322M (latest: Series D)
  10. Khoros — $307M (latest: Series F)
  11. Included Health — $278M (latest: Growth)
  12. Wealthfront — $274M (latest: Series E)
  13. Modular — $250M (latest: Series C)
  14. Ribbon — $225M (latest: Series C)
  15. PayJoy — $200M (latest: Series C)

Greylock — related firms and companies (56)

Greylock profile · All research reports

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•By Alejandro Cremades