TerraPower
TerraPower is a private nuclear energy company founded in 2006 by Bill Gates and a group of visionaries. The company aims to develop advanced nuclear technologies to meet global electricity demands, combat climate change, and provide safe, affordable, carbon-free energy. TerraPower focuses on creating next-generation nuclear reactors, with its flagship technology being the Natrium reactor, a sodium-cooled fast reactor designed for enhanced safety and efficiency. In addition to clean energy generation, TerraPower develops processes for extracting medical isotopes from nuclear materials, which are used in cancer treatments. The company collaborates with government agencies, utility companies, and international partners to test and build advanced reactors. Led by CEO Chris Levesque, TerraPower combines technical expertise with a mission-driven culture to address global challenges in energy and health.
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Headcount trend
TerraPower went from 603 employees in Jul 2023 to 861 in Jun 2025. Jan to Jun 2025: 72 people joined, 27 left.
Headcount data through Jun 2025
Org structure
Headcount by department
Hiring now
See all jobsSalaries at TerraPower
All salaries2 salary profiles in the US
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 4 filings.
Funding
- Jun 2025 · $650M · NVentures, HD Hyundai
- Nov 2022 · $80M · SK Inc, SK Innovation, Korea Shipbuilding and Offshore Engineering
- Aug 2022 · $750M · SK Inc, SK Innovation
- Mar 2022 · $8.5M · U.S. Department of Energy
- Jun 2010 · Series B · $35M · Charles River Ventures, Khosla Ventures
Peer reviews
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TerraPower FAQ
How many employees does TerraPower have?
TerraPower has about 861 employees, up 2% over the 3 months to Jun 2025.
Does TerraPower sponsor H1B visas?
Yes. TerraPower filed 4 H1B (LCA) applications in FY2026, according to the latest U.S. Department of Labor disclosures. Most of them were for Engineering roles.
What is TerraPower's revenue per employee?
TerraPower makes about $35K in revenue per employee, based on $30M annual revenue and 861 employees.
How much does TerraPower pay?
6figr has 2 salary profiles for TerraPower in the US, with pay broken down by role, level, gender and ethnicity on the TerraPower salaries page. See TerraPower salaries
How much funding has TerraPower raised?
TerraPower has raised $1.52B in total funding.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.