Kairos Power
Kairos Power is an American nuclear energy company based in Alameda, California, founded in 2016. The company is dedicated to developing and commercializing the fluoride salt-cooled high-temperature reactor (KP-FHR), a small modular reactor designed to support the global transition to clean energy. With roots in research from U.S. universities and national laboratories, Kairos Power emphasizes a collaborative engineering culture and rapid test iteration to minimize technical risks. The KP-FHR utilizes TRISO ceramic-coated fuel particles and low-pressure molten fluoride salt as coolant, offering enhanced safety features and the ability for online refueling. This innovative design aims to provide cost-competitive, low-carbon electricity while complementing renewable energy sources. The company is currently working on the Hermes demonstration project and has received NRC approval for construction, with plans for a U.S. demonstration plant before 2030. Kairos Power is committed to advancing nuclear technology for clean energy and industrial applications.
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Headcount trend
Kairos Power went from 326 employees in Jul 2023 to 404 in Jun 2025. Jan to Jun 2025: 44 people joined, 5 left.
Headcount data through Jun 2025
Org structure
Headcount by department
Hiring now
See all jobsSalaries at Kairos Power
All salaries4 salary profiles in the US
Most reported roles
H-1B sponsorship
The department split adds up all the years listed above. FY2026 alone: 1 filings.
Funding
- Jun 2022 · $20K · New Mexico Economic Development Department
Peer reviews
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Kairos Power FAQ
How many employees does Kairos Power have?
Kairos Power has about 404 employees, up 5.5% over the 3 months to Jun 2025.
Does Kairos Power sponsor H1B visas?
Yes. Kairos Power filed 1 H1B (LCA) application in FY2026, according to the latest U.S. Department of Labor disclosures. It was for a Engineering role.
What is Kairos Power's revenue per employee?
Kairos Power makes about $531K in revenue per employee, based on $214.4M annual revenue and 404 employees.
How much does Kairos Power pay?
6figr has 4 salary profiles for Kairos Power in the US, with pay broken down by role, level, gender and ethnicity on the Kairos Power salaries page. See Kairos Power salaries
How much funding has Kairos Power raised?
Kairos Power has raised $20K in total funding.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.
