Helion

Alternative Energy Equipment · Everett, WA · Founded 2013 · Privately Held (backing)

Developer of a fusion energy technology designed to generate clean electricity through controlled nuclear fusion. Helion is based in Everett, WA and was founded in 2013. It was valued at $15 billion at its Series E in Nov 2021, the last priced event on record. It has raised $1 billion across 2 recorded rounds; the latest was a $500 million Series E in Nov 2021.

PMV mark · valuation
$15.0B
Oct 2026
Priced at
its Series E
Nov 2021
Total raised
$1.0B
Last round
Later Stage VC (Series E)
Nov 2021

Who backs Helion?

25 investors
InvestorType
Y CombinatorOther
Lightspeed Venture PartnersVenture capital
U.S. Department of EnergyOther
SoftBank Investment AdvisersGrowth equity
Sand Hill AngelsVenture capital
BlackRockOther
SoftBank Group—
Altimeter Capital ManagementVenture capital
Ontario Teachers' Pension PlanOther
Capricorn Investment GroupOther
+ 15 more investors · a free account shows the complete list
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Helion investors

25 investors are on record for Helion, including Y Combinator, Lightspeed Venture Partners, U.S. Department of Energy and SoftBank Investment Advisers. By type, the record holds 5 venture capital firms and 3 hedge funds. The Series E in Nov 2021 drew 14 investors.

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