AI Infrastructure Investors in San Francisco 2026

15 firms writing AI Infrastructure checks in San Francisco, led by SV Angel, Sequoia Capital, CRV — ranked by verified deal count with the companies behind.

AI Infrastructure in San Francisco accounts for 78 tracked companies with verified cap-table data, 78 of which disclose round sizes totalling $159B. The median disclosed raise is $155M, and the largest is OpenAI at $117B, ahead of xAI ($12B) and Databricks ($3.6B).

The names that recur most often on these ai infrastructure cap tables are Andreessen Horowitz (12 companies), General Catalyst (8 companies), NVIDIA (8 companies), Y Combinator (7 companies), Sequoia Capital (7 companies), Lightspeed Venture Partners (7 companies). By latest disclosed round, the market skews Series B (19), Series A (16), Series C (14), Seed (11).

Best funded AI Infrastructure in San Francisco companies

  1. OpenAI — $117B (latest: Growth)
  2. xAI — $12B (latest: Series C)
  3. Databricks — $3.6B (latest: Series H)
  4. Groq — $3B (latest: Growth)
  5. Thinking Machines Lab — $2B (latest: Seed)
  6. Applied Intuition — $1.5B (latest: Series F)
  7. Baseten — $1.5B (latest: Seed)
  8. Scale AI — $1.3B (latest: Series F)
  9. Astranis — $1.2B (latest: Series E)
  10. Harvey — $1.2B (latest: Series F)
  11. DataRobot — $1.1B (latest: Series G)
  12. Advanced Machine Intelligence — $1B (latest: Seed)
  13. Sierra — $950M (latest: Series C)
  14. Perplexity AI — $665M (latest: Series E)
  15. You.com — $650M (latest: Series C)

Sector × city funding reports (20)

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