Most Backed Climate Startups 2026

48 Climate startups ranked by number of verified backers, led by Cambium Carbon, Electra, Fervo Energy. Each links to its full syndicate breakdown.

Climate accounts for 120 tracked companies with verified cap-table data, 120 of which disclose round sizes totalling $152B. The median disclosed raise is $250M, and the largest is Invenergy at $75B, ahead of ReNew ($15B) and Tesla ($11B).

The names that recur most often on these climate cap tables are Lowercarbon Capital (14 companies), Breakthrough Energy Ventures (13 companies), Prelude Ventures (7 companies), Google (6 companies), Temasek (6 companies), DCVC (5 companies). By latest disclosed round, the market skews Series C (22), Series A (21), Series B (21), Growth (17).

Best funded Climate companies

  1. Invenergy — $75B
  2. ReNew — $15B
  3. Tesla — $11B (latest: Series A)
  4. Zenobe Energy — $3.2B (latest: Growth)
  5. Commonwealth Fusion — $3B (latest: Series B)
  6. Generate Capital — $3B (latest: Growth)
  7. Sierra Space — $1.7B (latest: Series B)
  8. Redwood Materials — $1.6B (latest: Series E)
  9. Isagen — $1.4B (latest: Growth)
  10. Avaada — $1.3B (latest: Growth)
  11. TAE Technologies — $1.3B
  12. Base Power — $1.2B (latest: Series C)
  13. Form Energy — $1.2B (latest: Series F)
  14. Climeworks — $1B
  15. Group14 Technologies — $1B (latest: Series D)

More Climate research (2)

Research on comparable markets (14)

Sector × city funding reports (20)

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•By Alejandro Cremades