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Helion Energy raised $500 million in a growth round, announced Sept. 14.

Facts

Amount
$500 million
Currency
USD
Stage
Growth
Announced
Sep 14, 2026
Instrument
Equity

Sources

  1. 1.Helion funding round grows to $500M amid uncertainty over fusion startup’s Microsoft timeline — GeekWire, Sep 15, 2026

Public sources — Collected from public sources, not yet cross-checked.Last verified Oct 15, 2026