Breakthrough Energy Ventures

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).

• Companies tracked: 59
• Disclosed funding total: $13B across 59 companies
• Median disclosed raise: $100M
• Largest raise: Commonwealth Fusion — $3B
• Stage mix: Series B 22 · Series A 14 · Series C 8 · Series D 4
• Most recent dated round: 2026-06-25

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)

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• Companies backed by Breakthrough Energy Ventures Management GP, LLC
• Commonwealth Fusion
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Breakthrough Energy Ventures Management GP, LLC profile · All research reports