Company facts
- Founded
- 2013
- Employees
- 500
- Headquarters
- United States
- Type
- Private
- Funding
- Series F · $425M · 2025
About
Helion is a fusion power company based in Everett, WA, dedicated to building the world's first fusion power plant for unlimited clean electricity. With over $1 billion in funding from prominent investors, Helion has achieved significant milestones, including plasma temperatures of 100 million degrees Celsius with its Trenta prototype. The company emphasizes urgency, rigor, and hard truths as it pushes the boundaries of engineering to solve real-world energy challenges and create a sustainable future.