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Helion Energy›
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AddedFeb 13, 2024
UpdatedJun 24, 2026
Helion Energy

Helion Energy

Series E

Helion: Pioneering fusion power for unlimited clean electricity, based in Everett, WA.

HQ
Everett, WA, US
Founded
2013
Accelerator
Y Combinator logoY CombinatorS14
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Website

Latest News About Helion Energy

Sam Altman-backed fusion startup Helion in talks to sell power to OpenAI

TechCrunch

Sam Altman-backed fusion startup Helion in talks to sell power to OpenAI

OpenAI CEO Sam Altman is stepping down as board chair of Helion. His departure comes as reports that the two companies are negotiating a...

Mar 23, 2026

Fusion startup Helion hits blistering temps as it races toward 2028 deadline

TechCrunch

Fusion startup Helion hits blistering temps as it races toward 2028 deadline

Helion's Polaris device hit 150 million degrees C recently, a milestone that nudges the company toward its commercial power plant that will...

Feb 13, 2026

Sam Altman's fusion startup Helion Energy hits 150 million degree plasma temperature—a milestone that could bring first grid power in 2028

Fortune

Sam Altman's fusion startup Helion Energy hits 150 million degree plasma temperature—a milestone that could bring first grid power in 2028

Helion Energy reported reaching a record 150-million-degree plasma temperature in its Polaris prototype as it works toward delivering grid...

Feb 13, 2026

Every fusion startup that has raised over $100M

TechCrunch

Every fusion startup that has raised over $100M

Fusion startups have raised $7.1 billion to date, with the majority of it going to a handful of companies.

Dec 31, 2025

Every fusion startup that has raised over $300M

TechCrunch

Every fusion startup that has raised over $300M

Over the last several years, fusion power has gone from the butt of jokes — always a decade away! — to an increasingly tangible and...

Sep 14, 2024