Thursday, October 29, 2026

Startups & Funding

US fusion startups get $260M in awards — with equity strings

Helion and Commonwealth Fusion Systems won a combined $260 million in Commerce Department awards for chip work on their reactors, and both gave the government non-voting equity in return.

An illustration shows a digital twin of the Sparc fusion reactor
Photo: Commonwealth Fusion Systems

Helion and Commonwealth Fusion Systems (CFS) have together won $260 million in awards from the Department of Commerce, funded via the CHIPS and Science Act — Washington’s 2022 push to expand domestic chip manufacturing — to build the advanced semiconductors that power and control their reactors. Helion took $175 million of that; CFS received $85 million. Both deals carry a condition that marks a shift from how the US has historically backed the sector: in return, each company is handing the government non-voting equity.

That’s new. Government support for fusion research has traditionally come as non-dilutive capital — money that doesn’t shrink existing investors’ stakes — handed out to boost US innovation without the government taking a direct cut of any eventual win. The Trump administration has been pushing to change that calculus, following a pattern already visible elsewhere: MP Materials gave Washington a 15% stake for a $400 million investment plus a $150 million loan, USA Rare Earth handed over a 10% stake in return for a $277 million award paired with a $1.3 billion loan, and the government converted an unpaid $8.9 billion Intel award into roughly a 10% stake in the chipmaker.

For Helion and CFS, the dollar amounts are modest next to what each has already raised — CFS has pulled in about $4 billion, and Helion close to $3.2 billion. Helion’s $175 million converts to non-voting shares priced off its $15.5 billion Series G valuation, working out to roughly a 1% stake; CFS’s stake is also non-voting and tied to its own latest valuation, which it hasn’t disclosed, so its size isn’t public. Helion CEO David Kirtley said the structure “aligns the interests of Helion and the U.S. taxpayer around our commercial success,” while a CFS spokesperson framed its own equity stake in similar terms, as letting taxpayers share in the upside of research they helped fund.

The awards also signal that Washington is paying fusion more attention after years of thin, inconsistent funding — the Biden-era Milestone Based Fusion Development Program distributed less than $50 million in its first couple of years, far short of the one-time, $10 billion injection the Fusion Industry Association asked for last year. Private investors have already bet more than $14 billion that the sector will get a reactor on the grid, and other governments are leaning in too — Germany and the EU both sit on the cap table of Germany’s Proxima Fusion. Whether more fusion startups follow Helion and CFS in trading equity for awards could now shape how the next round of government money reaches the industry.

Why it matters

The equity-for-awards structure turns federal fusion funding from a subsidy into an investment, giving Washington direct financial upside if a reactor reaches the grid — and sets a template other capital-hungry energy and hardware startups may be asked to follow.