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Helion

EnergySeries D+

Fusion energy to power humanity's future

🌐 www.helionenergy.comLinkedInX / Twitter📍 WAEst. 2013👥 201-500 employees
3Rounds
2Articles
General InformationHelion Energy is a fusion technology company based in Redmond, Washington, founded in 2013, with over 200 employees focused on developing commercial polaris fusion systems for clean electricity generation.
Funding & FinancialsHelion has raised over $500 million in total funding including Series D and subsequent rounds, with backing from prominent investors including OpenAI CEO Sam Altman and other venture capital firms.
Leadership & TeamPolaris Lawrence serves as CEO; the company was founded by several MIT-trained physicists and engineers specializing in fusion research and plasma physics.
Recent ActivityHelion has announced plans to deliver fusion power to Microsoft and other corporate customers by the early 2030s, representing major commercial partnerships for fusion-generated electricity.

Highlights

Total Raised
3 rounds
Latest Round
$465
Jul 7, 2026
Stage
Series D+
energy
Employees
201-500
Founded 2013
Headquarters
WA
News Coverage
2 articles
Last: 1mo ago
Talent Signals
SEC Filings

Backers

Alta Park Capital
Anti Fund
boxgroup
BoxGroup
Capricorn Technology Impact Funds
Climate
Dustin Moscovitz
Dustin Moskovitz/Good Ventures Foundation
Ford Motor Company Executive Chairman Bill Ford
Lightspeed Venture Partners
Lux Capital
Mithril Capital
Peak XV Partners
SoftBank Vision Fund 2
Thrive Capital

Funding History

$465
2026
Series G
$465
2026
Series Unknown
$465
2026
Growth
SEC Form D   Editorial
Jul 7, 2026
$465 millionGrowth · Editorial

Investors: Anti Fund, Climate, Dustin Moscovitz, Lightspeed Venture Partners, Lux Capital, Mithril Capital, Peak XV Partners, SoftBank Vision Fund 2, Thrive Capital

<cite index="10-1">Helion is racing to complete a power plant for Microsoft by 2028 with a fresh $465M infusion</cite>.

Jun 23, 2026
$465 millionSeries Unknown · Editorial

Investors: Anti Fund, boxgroup, Climate, Dustin Moscovitz, Lightspeed Venture Partners, Lux Capital, Mithril Capital, Peak XV Partners, SoftBank Vision Fund 2, Thrive Capital

Fusion energy startup raises $465M to build a power plant for Microsoft by 2028.

Jun 8, 2026
$465 millionSeries G · Editorial

Investors: Thrive Capital, Alta Park Capital, Anti Fund, BoxGroup, Lux Capital, Peak XV Partners, Ford Motor Company Executive Chairman Bill Ford, Capricorn Technology Impact Funds, Lightspeed Venture Partners, Mithril Capital, Dustin Moskovitz/Good Ventures Foundation, SoftBank Vision Fund 2

Helion, a Washington-based fusion energy company, raised $465 million in Series G funding to accelerate commercial deployment of fusion electricity generation and scale manufacturing capacity.

News Coverage 2

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