The company raised $425 million in January 2025, around the same time that it turned on Polaris, a prototype reactor. Helion ...

Investors are pouring billions into fusion companies, encouraged by breakthroughs that they contend have put a sustained ...

Polaris, Helion’s seventh prototype, sits inside a 27,000 square-foot building in Everett, Washington. It took more than ...

Helion just raised $425 million in fresh funding for its bid to be the first to produce electricity through nuclear fusion. That brings the total investment into Helion to $1 billion, and it's ...

America could lose the race to create energy from fusion, tech leaders warned, as China is dramatically outspending the U.S.

Helion Energy Inc., a startup working to develop commercial fusion reactors, today announced that it has closed a $425 million late-stage funding round.The Series F deal included the participation ...

Fusion energy developer Helion Energy has broken ground on a new facility in Everett, Washington, which will house its seventh generation fusion prototype, known as Polaris. Construction of the ...

Helion Energy CEO and co-founder David Kirtley talks to Gov. Jay Inslee about Trenta, Helion’s sixth fusion prototype, during a tour of their facility on July 9 in Everett.

Nuclear fusion startup Helion to build ‘world’s first’ power plant after raising $425 million. Helion Energy says it will ‘keep pushing to do what no one has done before’ ...

The Everett-based company hit a valuation of more than $5.4 billion with the raise. Everett-based fusion energy company Helion on Tuesday raised a $425 million Series F round. The company is now ...

Few fusion startups have been as closely watched as Helion. The 12-year-old company is backed by Sam Altman, rumored to be in talks with OpenAI, and has a deal to supply Microsoft with electricity ...