Most Active AI Infrastructure Investors in Sunnyvale 2026

10 firms writing AI Infrastructure checks in Sunnyvale, led by Felicis, Mayfield Fund, Social Capital — ranked by verified deal count with the companies.

AI Infrastructure in Sunnyvale accounts for 3 tracked companies with verified cap-table data, 3 of which disclose round sizes totalling $64B. The median disclosed raise is $854M, and the largest is Cerebras Systems at $63B, ahead of Celestial AI ($854M) and Avicena Tech ($120M).

The names that recur most often on these ai infrastructure cap tables are G42 (1 company), Samsung (1 company), KAI Tsang (1 company), Tiger Global (1 company), Maverick Silicon (1 company), Prosperity7 Ventures (1 company). By latest disclosed round, the market skews IPO (1), Series C (1), Series B (1).

Best funded AI Infrastructure in Sunnyvale companies

  1. Cerebras Systems — $63B (latest: IPO)
  2. Celestial AI — $854M (latest: Series C)
  3. Avicena Tech — $120M (latest: Series B)

Sector × city funding reports (20)

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