The firm's latest Series F round brings the total investment into Helion over the $1 billion line, and it's aiming to begin delivering power from a single fusion 50-MW plant to Microsoft by 2028.

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 ...

Jan 28 (Reuters) - Helion, a startup working to generate electricity ... hits one-year high on stock buyback plan, 2025 forecast 10:36 AM UTC Boeing CEO Kelly Ortberg on Thursday said Elon Musk ...

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 ...

Helion’s facility in Everett, Wash. (Helion Photo) Helion Energy announced a $425 million funding round that will help the Seattle-area fusion company chase the “Holy Grail” of clean energy.

EVERETT — Helion received $425 million in new funding to expand its goal to build nuclear plants using fusion energy, the Everett fusion energy company announced Tuesday. This boosts the overall ...

(Reuters) - Helion, a startup working to generate electricity from nuclear fusion, on Tuesday said it has raised $425 million in venture funding from a group of investors including SoftBank Group ...

Fresh off a $425 million Series F funding round, Helion is now valued at $5.4 billion, the startup announced today (Jan. 28). The company’s co-founder and CEO David Kirtley said the massive ...