Top AI Infrastructure Co-Investor Pairs 2026

10 firm pairs that back the same AI Infrastructure companies most often, led by Andreessen Horowitz × Irving Investors (3 shared) — from 109 verified cap.

AI Infrastructure accounts for 120 tracked companies with verified cap-table data, 120 of which disclose round sizes totalling $316B. The median disclosed raise is $453M, and the largest is OpenAI at $117B, ahead of Cerebras Systems ($63B) and xAI ($12B).

The names that recur most often on these ai infrastructure cap tables are Andreessen Horowitz (16 companies), NVIDIA (15 companies), Nvidia (14 companies), Sequoia Capital (13 companies), General Catalyst (11 companies), BlackRock (8 companies). By latest disclosed round, the market skews Series C (30), Series B (16), Series D (16), Series A (12).

Best funded AI Infrastructure companies

  1. OpenAI — $117B (latest: Growth)
  2. Cerebras Systems — $63B (latest: IPO)
  3. xAI — $12B (latest: Series C)
  4. Aligned — $12B (latest: Growth)
  5. STACK INFRASTRUCTURE — $10B (latest: Growth)
  6. Vantage Data Centers — $9.2B (latest: Growth)
  7. Compass Datacenters — $5.7B (latest: Growth)
  8. Cologix — $5B (latest: Growth)
  9. CoreWeave — $4.9B (latest: IPO)
  10. DayOne — $3.9B (latest: Series C)
  11. Crusoe Energy Systems — $3.9B (latest: Series E)
  12. Databricks — $3.6B (latest: Series H)
  13. Groq — $3B (latest: Growth)
  14. Thinking Machines Lab — $2B (latest: Seed)
  15. Reflection.Ai — $2B (latest: Series B)

More AI Infrastructure research (3)

Research on comparable markets (14)

Sector × city funding reports (20)

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