Greylock Co-Investors 2026

Who Greylock invests alongside: GV, SV Angel, Base10 Partners — mapped across 36 portfolio companies in 10 sectors and 9 cities.

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)

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•By Alejandro Cremades