Helion
helionenergy.comDeveloper of a fusion power plant designed to produce clean and virtually limitless electricity.
Price per share
12M · USD
Funding history
$M raised · $B post-money
Signals
1 latest
Helion adds $35M to its June round, taking the raise to $500M
Helion Energy said on Tuesday September 15, 2026 that it added $35 million to the funding round it first announced in June 2026, bringing the round to $500 million, according to GeekWire, which described a round including crossover, pension and sovereign investors. The June 2026 Series G was reported at $465 million at a $15.5 billion post-money valuation led by Thrive Capital. The top-up fixes the latest primary valuation reference point for Helion secondary pricing and lands amid continuing uncertainty over Helion's Microsoft power-delivery timeline.
Source: GeekWire
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