Most Backed Climate Startups in San Francisco, CA 2026

3 Climate startups in San Francisco, CA ranked by verified backer count, led by Nitricity, Sway, Gridware. Each links to its full syndicate breakdown.

Climate in San Francisco, CA accounts for 15 tracked companies with verified cap-table data, 15 of which disclose round sizes totalling $6B. The median disclosed raise is $116M, and the largest is Generate Capital at $3B, ahead of Twelve ($830M) and UPSIDE Foods ($561M).

The names that recur most often on these climate cap tables are Lowercarbon Capital (4 companies), Breakthrough Energy Ventures (3 companies), DCVC (2 companies), pension funds from Australia (1 company), pension funds from Sweden (1 company), pension funds from the U.K. (1 company). By latest disclosed round, the market skews Series B (6), Series C (3), Series A (3), Growth (1).

Best funded Climate in San Francisco, CA companies

  1. Generate Capital — $3B (latest: Growth)
  2. Twelve — $830M (latest: Series C)
  3. UPSIDE Foods — $561M (latest: Series C)
  4. Inertia — $450M (latest: Series A)
  5. Watershed — $239M (latest: Series C)
  6. Heirloom — $203M (latest: Series B)
  7. Charm Industrial — $126M (latest: Series B)
  8. Crux — $116M (latest: Series B)
  9. Insight M — $100M (latest: Series E)
  10. Pachama — $90M (latest: Series B)
  11. Nitricity — $70M (latest: Series B)
  12. Quilt — $64M
  13. Aetherflux — $60M (latest: Series A)
  14. Recurve — $53M (latest: Series B)
  15. GlacierGrid — $19M (latest: Series A)

Sector × city funding reports (20)

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•By Alejandro Cremades