# Thea Energy

> Thea Energy is a New Jersey fusion power company building a simplified, mass-manufacturable stellarator. Instead of the exotic, millimeter-precise 3D magnet coils that defined earlier stellarators, Thea uses arrays of small, planar high-temperature-superconductor electromagnets steered by software - shifting complexity from hardware fabrication to control code. Spun out of the Princeton Plasma Physics Laboratory in 2022, the company is building Eos, a neutron-source stellarator meant to prove power-plant-relevant performance and generate near-term revenue, ahead of its first commercial plant, Helios.

- **Founded:** 2022
- **Headquarters:** Kearny, New Jersey, United States
- **Founders:** Brian Berzin (Co-Founder & CEO), David Gates (Co-Founder & CTO)
- **Team size:** ~70-110 employees
- **Products:** Planar-coil stellarator architecture, Eos, Helios
- **Notable:** Operated what it describes as the world's first superconducting planar-coil magnet array (2025), validating that simplified magnets can create stellarator fields within existing HTS technology limits., Demonstrated the performance and controllability of small, simple magnets for fusion, shifting complexity from precision fabrication to software-defined control., Selected for the U.S. DOE Milestone-Based Fusion Development Program as one of eight companies (2023).

## Products & services

- **Planar-coil stellarator architecture** — A fusion machine that uses arrays of small, simple, planar high-temperature-superconductor electromagnets - licensed from Princeton Plasma Physics Laboratory - controlled dynamically by software to shape the 3D magnetic field, replacing the complex 3D coils of prior stellarators.
- **Eos** — An intermediate, large-scale integrated neutron-source stellarator designed to demonstrate power-plant-relevant, steady-state fusion performance, produce radionuclides such as tritium and medical radioisotopes, generate near-term revenue, and de-risk the first power plant. Targeted to begin operations around 2030.
- **Helios** — Thea Energy's planned first commercial fusion power plant, built on the same software-controlled planar-coil architecture as Eos, with a modular, pixel-inspired magnet design; construction targeted before the end of the decade and grid power around 2035.

## Achievements

- Operated what it describes as the world's first superconducting planar-coil magnet array (2025), validating that simplified magnets can create stellarator fields within existing HTS technology limits.
- Demonstrated the performance and controllability of small, simple magnets for fusion, shifting complexity from precision fabrication to software-defined control.
- Selected for the U.S. DOE Milestone-Based Fusion Development Program as one of eight companies (2023).
- Won two DOE INFUSE awards (2022) and a DOE public-private partnership award.
- Raised $100 million Series B in 2026, led by USIT (Thomas Tull), to scale magnet manufacturing and build Eos.
- Opened a purpose-built ~15,000 sq ft HQ and magnet lab at Kearny Point in New Jersey (2025).

## Latest updates

- **2026-05** — Raised $100 million Series B led by USIT to expand magnet manufacturing with a second Northern New Jersey facility and build Eos.
- **2025-12** — Previewed Helios, its pixel-inspired first commercial fusion power plant, in a TechCrunch exclusive.
- **2025-01** — Opened a purpose-built HQ and magnet lab at Kearny Point, Kearny, NJ, with plans to double its workforce.
- **2025-01** — Announced operation of what it calls the world's first superconducting planar-coil magnet array.

## Links

- Website: https://thea.energy
- LinkedIn: https://www.linkedin.com/company/thea
- Twitter/X: https://twitter.com/TheaEnergy

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Profile page: https://yespress.io/thea-energy
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Last updated: 2026-07-17