signal/raiseTrack rounds

Biggest Climate & energy funding rounds of 2026

The largest Climate & energy startup rounds announced in 2026, ranked by round size.

Rounds ranked26
Combined$3.57bn
Median$27.5m
  1. 1Valar AtomicsSeries B Climate & energy · Hawthorne · 3 Aug · led by Sequoia Capital$1bn
  2. 2Antora EnergySeries C Climate & energy · San Jose · 30 Jul · led by G2 Venture Partners, Eclipse$550m
  3. 3Proxima FusionSeries B Climate & energy · Munich · 7 Jul · led by XTX Ventures, East X Ventures · $2.7bn valuation$468m
  4. 4InertiaSeries A Climate & energy · Livermore · 11 Feb · led by Bessemer Venture Partners$450m
  5. 5VoltusSeries D+ Climate & energy · San Francisco · 8 Oct · led by Generation Investment Management, Activate Capital$225m
  6. 6Type One EnergySeries B Climate & energy · Knoxville · 6 Oct · led by Breakthrough Energy Ventures, Clutterbuck Capital$200m
  7. 7Mazama EnergySeries B Climate & energy · Frisco · 17 Sep · led by Centaurus Capital, Doerr Capital$135m
  8. 8VEIRSeries C Climate & energy · Woburn · 8 Oct · led by Matter Venture Partners, Tyche Partners$110m
  9. 9Peak EnergySeries B Climate & energy · Burlingame · 21 Oct · led by GM Ventures$108m
  10. 10Rabot EnergySeries B Climate & energy · Hamburg · 15 Oct · led by Endeit, DeepTech & Climate Fonds$56m
  11. 11AmberSeries D+ Climate & energy · Melbourne · 21 Sep · led by 1GT$55.9m
  12. 12Elax ÉnergieGrowth Climate & energy · Paris · 20 Oct$33.7m
  13. 13FluoRokSeries A Climate & energy · Oxford · 5 Nov · led by Orano Venture Fund, Supernova Invest$30m
  14. 14ScimplifySeries C Climate & energy · Bengaluru · 14 Oct · led by Hitachi Ventures · $250m valuation$25m
  15. 15NomosSeries A Climate & energy · Berlin · 15 Sep · led by Index Ventures$23.1m
  16. 16HadesSeed Climate & energy · Munich · 11 Feb · led by HV Capital, Headline$17.8m
  17. 17Green VoltisSeries A Climate & energy · Stockholm · 5 Nov · led by Lochpine Capital$15.5m
  18. 18VECKTASeries A Climate & energy · San Diego · 20 Oct · led by Origin Ventures$11m
  19. 19altMSeries A Climate & energy · Bengaluru · 5 Nov · led by Rainmatter, Mela Ventures$10.3m
  20. 20Vensum PowerSeries A Climate & energy · Espoo · 6 Nov · led by Lifeline Ventures, Larsen & Toubro$10.1m
  21. 21Two Point O CapitalSeries A Climate & energy · Mumbai · 2 Nov · led by Transition VC$10m
  22. 22Giraffe BioSeed Climate & energy · Buenos Aires · 13 Oct · led by Orion Industrial Ventures$6.4m
  23. 23NoakSeed Climate & energy · Genk · 30 Oct$5.6m
  24. 24EpochSeed Climate & energy · London · 26 Oct · led by Burnt Island Ventures, Sand River$4.3m
  25. 25KinishSeries A Climate & energy · Tokyo · 20 Oct$3.1m
  26. 26GanigaSeed Climate & energy · Cascina · 20 Oct · led by Vivenda$1.7m

More rankings

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