Founded Year

2010

Stage

Series F | Alive

Total Raised

$972.11M

Valuation

$0000 

Last Raised

$425M | 10 mos ago

Mosaic Score
The Mosaic Score is an algorithm that measures the overall financial health and market potential of private companies.

+92 points in the past 30 days

About Helion Energy

Helion Energy develops fusion power technology within the energy sector. The company is dedicated to creating the world's first fusion power plant, aimed at providing unlimited clean electricity. Helion Energy's technology is designed for electricity production through a proven approach to fusion to enable a future of sustainable and reliable energy. It was founded in 2010 and is based in Everett, Washington.

Headquarters Location

1415 75th Street South West

Everett, Washington, 98203,

United States

425-867-8900

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ESPs containing Helion Energy

The ESP matrix leverages data and analyst insight to identify and rank leading companies in a given technology landscape.

EXECUTION STRENGTH ➡MARKET STRENGTH ➡LEADERHIGHFLIEROUTPERFORMERCHALLENGER
Industrials / Energy Tech

The nuclear fusion developers market develops technologies for commercial fusion energy generation using plasma confinement and compression approaches. Companies in this market create fusion reactors including tokamaks, stellarators, inertial confinement systems, and alternative configurations like field-reversed configurations and Z-pinch devices. These solutions serve utilities, data centers, an…

Helion Energy named as Leader among 15 other companies, including Commonwealth Fusion Systems, SHINE Technologies, and Tokamak Energy.

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Research containing Helion Energy

Get data-driven expert analysis from the CB Insights Intelligence Unit.

CB Insights Intelligence Analysts have mentioned Helion Energy in 5 CB Insights research briefs, most recently on Jul 10, 2025.

Expert Collections containing Helion Energy

Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.

Helion Energy is included in 2 Expert Collections, including Unicorns- Billion Dollar Startups.

U

Unicorns- Billion Dollar Startups

1,309 items

R

Renewable Energy

4,865 items

Helion Energy Patents

Helion Energy has filed 16 patents.

The 3 most popular patent topics include:

  • plasma physics
  • electrical engineering
  • electricity
patents chart

Application Date

Grant Date

Title

Related Topics

Status

2/6/2015

10/11/2022

Fusion power, Nuclear fusion, Nuclear physics, Plasma physics, Nuclear technology

Grant

Application Date

2/6/2015

Grant Date

10/11/2022

Title

Related Topics

Fusion power, Nuclear fusion, Nuclear physics, Plasma physics, Nuclear technology

Status

Grant

Latest Helion Energy News

Helion's next big bet is fusion power manufacturing at scale – but tech uncertainty remains

Nov 11, 2025

But clean power innovator Helion Energy is doing much more than that. It's building its seventh-generation fusion prototype to prove that its technology will deliver energy to the grid while simultaneously constructing a commercial power plant in Central Washington and establishing manufacturing operations to assemble future facilities. It all rides on Helion's technology for smashing atoms to work as planned. “Our goal is not just to do fusion, not just to make energy, but to make electricity,” said Helion CEO and co-founder David Kirtley Helion's multi-track strategy — developing the prototype while standing up industrial-scale production — reflects the belief that speed will be key once fusion is proven viable. The company recently signed a lease near its Everett headquarters for a 166,000 square-foot space dubbed Omega where the company will install an assembly line to build the thousands of capacitors needed to deliver massive surges of electricity to its fusion generator and capture the energy it produces. “Helion is a manufacturing company,” said Sofia Gizzi , Helion's senior manager of production. “It's not an R&D company. It's not a science experiment. It's very much a manufacturing company.” To meet its lofty goals, Helion has charted rapid growth in recent years — landing huge investments, hitting a headcount of more than 500 employees, and spreading its footprint across an industrial region north of Seattle that's also home to aviation titan Boeing. All of that expansion is built on the promise of fusion — though no company or research institution has yet demonstrated it can create affordable electricity from fusion, the so-called Holy Grail of clean energy. If it works, the demand is there. Data centers and AI expansion, plus economy-wide efforts to electrify transportation, building heating and cooling, and industrial operations are all hungry for clean power. Microsoft, which is investing heavily in AI-related data center infrastructure, has agreed to buy the electricity produced by the 50-megawatt Orion plant. “While the path to commercial fusion is still unfolding, we're proud to support Helion's pioneering work here in Washington state as part of our broader commitment to investing in sustainable energy,” said Melanie Nakagawa, Microsoft's chief sustainability officer, when Orion broke ground in July. Manufacturing strategies Building fusion plants requires more than physics breakthroughs — it demands industrial muscle. That's where Helion's Omega facility comes in. The company has long aimed to keep its manufacturing and assembly in-house. The approach avoided supply chain disruptions during the pandemic, could help skirt fluctuating tariffs and, perhaps most importantly, allows for quick adjustments as facility designs and operations are fine-tuned. Standing inside Omega's freshly painted, gleaming white space just minutes from headquarters, Gizzi explained that the proximity between engineering and manufacturing is strategic. “If you want to scale quickly, and if you want to be able to build an intelligent manufacturing process, you have to have [manufacturing] engineers with a really good understanding of how the thing works,” Gizzi said. “And you have to have design engineers with a really good understanding of what's hard about manufacturing.” Helion's manufacturing-first philosophy aligns with a broader push to restore American production capacity. Washington state congressional leaders Sen. Maria Cantwell and Rep. Suzan DelBene recently introduced the bipartisan Fusion Advanced Manufacturing Parity Act , which would provide large tax credits for fusion supply chain components. “The state of Washington is the world's leading hub for fusion energy, which one day soon could provide vast amounts of the type of power we need to keep electricity prices down and increase America's economic competitiveness,” Cantwell said in announcing the bill last month. Looking to 2030 Outside of public support, Helion raised $425 million in January specifically to finance its manufacturing build out in the Omega facility. Investors in the round included OpenAI CEO Sam Altman, Facebook co-founder Dustin Moskovitz, steel manufacturer Nucor, Mithril Capital, SoftBank and others. The fusion company will begin installing assembly line equipment inside Omega early next year with production starting in late 2026. The facility will help produce the roughly 2,500 capacitor units needed for the Orion power plant in Malaga, Wash., using both workers and robotics that include off-the-shelf and custom technology to significantly expedite the current processes. With the scaled-up manufacturing capacity, Helion is focused on the future and what comes after the first plant is running. “These high volume lines are not for our Orion machine, but for the next machine,” Gizzi said. “A factory operating at 50% of its design capacity or less can spit out Orion, no problem. But we're really looking beyond that into 2030.”

Helion Energy Frequently Asked Questions (FAQ)

  • When was Helion Energy founded?

    Helion Energy was founded in 2010.

  • Where is Helion Energy's headquarters?

    Helion Energy's headquarters is located at 1415 75th Street South West, Everett.

  • What is Helion Energy's latest funding round?

    Helion Energy's latest funding round is Series F.

  • How much did Helion Energy raise?

    Helion Energy raised a total of $972.11M.

  • Who are the investors of Helion Energy?

    Investors of Helion Energy include Mithril Capital Management, Sam Altman, Nucor, Capricorn Investment Group, Lightspeed Venture Partners and 9 more.

  • Who are Helion Energy's competitors?

    Competitors of Helion Energy include Proxima Fusion, General Fusion, Commonwealth Fusion Systems, Realta Fusion, Novatron and 7 more.

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