Helion, the Sam Altman-backed fusion startup, raises $465M to build a power plant for Microsoft

Helion, the Sam Altman-backed fusion startup, raises $465M to build a power plant for Microsoft

June 8, 2026 · 5 min

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Helion, a fusion startup backed by Sam Altman, has raised $465 million to build a power plant for Microsoft by 2028.

Fusion startup Helion is racing to complete a power plant for Microsoft by 2028. A fresh infusion of cash should help with that. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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