The OpenAI leader and SoftBank, who are leading the mammoth Stargate effort, have poured hundreds of millions into Helion.

Sam Altman’s net worth stands at $1.2 billion, according to Forbes, ranking 2,530 in the world’s billionaire list currently. Well, this net ...

Helion has garnered considerable public attention largely because of Altman’s involvement. In 2021, the OpenAI CEO invested $375 million in the company, which is by far his largest ever personal ...

Sam Altman — OpenAI’s CEO and co-founder, as well as Helion’s longtime board chair and a past investor — also participated in the round with others. Helion’s valuation topped $5.4 ...

Helion's unorthodox approach to fusion power and relative secrecy has earned it plenty of fans — and critics. But don’t count ...

Helion, an Everett-based fusion energy company, has announced a $425 million Series F investment round that will be used to ...

A US start-up whose backers include tech billionaires Sam Altman and Peter Thiel has raised $425mn to keep it on track to achieve its target of producing electricity from nuclear fusion in 2028.

Helion, founded in 2013, is backed by OpenAI's Sam Altman. A Sam Altman-backed startup has raised nearly half a billion dollars as it aims to build the world's first nuclear fusion power plant to ...