Helion Energy
YC S14Seattle, US · Founded 2013 · 150 employees · 3 known investors
Helion develops fusion energy systems designed to generate clean electricity for commercial use. The company builds pulsed magnetic fusion prototypes with applications for industrial and commercial electricity generation.
Advanced ManufacturingCleantechClimate TechDeep TechEnergyHardwareFusion EnergyHard TechClimatein /helion-energy/@helion_energy
Founders & leadership· Y Combinator alumni (S14)
Investors · 3
In the news
- Fusion roundup: Helion sets temperature record; Inertia raises $450M -- ANS / Nuclear Newswireans.org · 2026
- Fusion Energy Attracts $4.5 Billion in a Year; General Fusion Surges on Second Day of Nasdaq Trading — BigGo Financefinance.biggo.com · 2026
- Helion Energy Raises $425 Million to Build World's First Nuclear Fusion Power Plant - London Dailylondondaily.com · 2026
- Helion's $465M Raise: Inside the Fusion Energy Betangelinvestorsnetwork.com · 2026
- Helion Raises $465 million in Latest Funding Roundthefusionreport.substack.com · 2026
- Helion, the Sam Altman-backed fusion startup, raises $465M to build a power plant for Microsoft | TechCrunchtechcrunch.com · 2026
- Helion Stock Pre-IPOnasdaqprivatemarket.com · 2025
- Helion raises $425M to help build a fusion reactor for Microsoft | TechCrunchtechcrunch.com · 2025