17 fusion startups have now raised over $100M each, and the total keeps climbing
TL;DR
Private fusion funding has crossed $13B with 17 startups raising $100M+. Helion and Focused Energy closed big rounds in June 2026. No one has hit breakeven.
The number of fusion startups that have raised more than $100 million has reached 17, according to a TechCrunch tally published Thursday, with total private investment in the sector now exceeding $13 billion. Two of the most recent rounds, Helion Energy’s $465 million raise and Focused Energy’s $240 million Series A, both closed in June 2026.
Commonwealth Fusion Systems leads the pack with roughly $3 billion in total funding and a tokamak reactor called SPARC that the company says is about 75% complete at its facility in Devens, Massachusetts. Behind it sits TAE Technologies at $1.79 billion in pre-merger funding, Helion Energy at $1.5 billion, and Pacific Fusion and Shine Technologies each at around $1 billion.
The scale of capital flowing...
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