Breakthrough Energy Ventures

Portfolio Companies 2026 for Breakthrough Energy Ventures: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

Breakthrough Energy Ventures accounts for 59 tracked companies with verified cap-table data, 59 of which disclose round sizes totalling $13B. The median disclosed raise is $100M, and the largest is Commonwealth Fusion at $3B, ahead of Redwood Materials ($1.6B) and Electric Hydrogen ($700M).

The names that recur most often on these portfolio cap tables are Breakthrough Energy Ventures (59 companies), Lowercarbon Capital (9 companies), Prelude Ventures (8 companies), Khosla Ventures (4 companies), Andreessen Horowitz (4 companies), Y Combinator (4 companies). By latest disclosed round, the market skews Series B (22), Series A (14), Series C (8), Series D (4).

Best funded Breakthrough Energy Ventures companies

  1. Commonwealth Fusion — $3B (latest: Series B)
  2. Redwood Materials — $1.6B (latest: Series E)
  3. Electric Hydrogen — $700M (latest: Series A)
  4. Nature’s Fynd — $500M (latest: Series C)
  5. Fervo Energy — $462M (latest: Series E)
  6. Zap Energy — $448M (latest: Series D)
  7. Pivot Bio — $430M (latest: Series D)
  8. Cowboy Space — $365M (latest: Series B)
  9. ESS — $338M (latest: IPO)
  10. Lilac Solutions — $300M (latest: Series B)
  11. 1366 Technologies — $265M (latest: Series E)
  12. Terra CO2 Technologies — $250M (latest: Series B)
  13. Antora Energy — $230M (latest: Series B)
  14. Heirloom — $203M (latest: Series B)
  15. Xcimer Energy — $200M (latest: Series A)

Breakthrough Energy Ventures Management GP, LLC — related firms and companies (56)

Breakthrough Energy Ventures Management GP, LLC profile · All research reports