Fusion Startup Helion Raises $465 Million at $15.5 Billion Valuation

businessvc 3 posts · 3 accounts

Helion raised a $465 million Series G round at a $15.5 billion post-money valuation, giving the fusion startup fresh capital to accelerate the commercial deployment of fusion. The company said the funding will help build the industrial and manufacturing foundation needed to produce fusion generators at assembly-line scale.

The financing values Helion at nearly triple its level from early 2025. Investors are betting the company can deliver a new source of power for AI data centers.

From the sources (3 posts)

@theinformation

Exclusive: Fusion startup Helion raised $465 million at a $15.5 billion valuation, nearly triple its valuation from early 2025. Investors are betting it can deliver a new source of power for AI data centers. Details:

@dkirtley

Today, we closed our Series G at @Helion_Energy , raising $465M to build the industrial and manufacturing foundation needed to produce fusion generators at an assembly-line scale.

@helion_energy

We’ve raised a $465 million Series G funding round at $15.5B post-money valuation to accelerate the commercial deployment of fusion. Read more here:

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