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.

Utilities Alameda, United States Founded 2016 ~508 employees

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Employees
508
0% in the 3 months to Sep 2026
Revenue / employee
$422K
Revenue ~$214M
Total funding
$20K
Last round Jun 2022
12-month attrition
8.1%
Tech: 6.8%
H1B filings, FY2026
1
Sponsors visas
Open jobs
38
Last 30 days

Headcount trend

Kairos Power went from 404 employees in Oct 2024 to 508 in Sep 2026. Apr to Sep 2026: 28 people joined, 18 left.

Org structure

Headcount by department

Engineering254
Other106
Operations62
Design34
Finance19
Marketing13
HR12
Sales8

Funding

  • Jun 2022 · $20K · New Mexico Economic Development Department

Salaries at Kairos Power

All salaries

4 salary profiles in the US

Most reported roles

Pay by level, gender and ethnicity

H-1B sponsorship

H-1B Sponsorship Limited
H-1B Filings by Department
Engineering10

The department split adds up all the years listed above. FY2026 alone: 1 filings.

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Kairos Power FAQ

How many employees does Kairos Power have?

Kairos Power has about 508 employees, unchanged over the 3 months to Sep 2026.

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 $422K in revenue per employee, based on $214.4M annual revenue and 508 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.