Kairos Power competitors and alternatives
As of Nov 13, 2026, Alion lists 10 companies most like Kairos Power: General Matter, The Nuclear Company, Helion Energy, Westinghouse Electric Company, Commonwealth Fusion Systems, TerraPower, Antares Nuclear, Type One Energy, Centrus Energy and NuScale Power.
- Kairos Power itself has 64 open roles on Alion.
- Of them, Westinghouse Electric Company is hiring the most, with 869 open roles.
- Commonwealth Fusion Systems has raised the most venture funding on record: $2.7B.
- Open roles at Commonwealth Fusion Systems rose the most: from 111 on Oct 12, 2026 to 130 now.
Kairos Power and its competitors compared
Open roles are the postings Alion lists today; their change is shown only for career sites that state posting dates. Funding is the venture money on record. A dash means Alion holds no figure.
| Company | Open roles | Change | Raised | Last round | Employees | Headquarters | Main technologies | Hiring in |
|---|---|---|---|---|---|---|---|---|
Kairos Power
This company
|
64 | +83%since Oct 12, 2026 | $100M | Venture round $100M2026 | 201-500 | Alameda, United States | SolidWorks, Python, MATLAB | United States |
General Matter
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
125 | +14%since Oct 12, 2026 | – | – | 51-200 | San Francisco, United States | Python, AutoCAD, C++ | United States |
The Nuclear Company
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
49 | +2%since Oct 12, 2026 | $51M | Venture round $51M2025 | 51-200 | Columbia, United States | Python, AWS, Machine Learning | United States |
Helion Energy
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
77 | – | $500M | Venture round $500M2021 | 501-1000 | Everett, United States | Python, MATLAB, SolidWorks | United States, Switzerland |
Westinghouse Electric Company
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
869 | – | – | – | 5000+ | Cranberry Township, United States | Power BI, Python, Microsoft Excel | United States, Poland, Spain +11 more |
Commonwealth Fusion Systems
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
130 | +17%since Oct 12, 2026 | $2.7B | Series B $863M2025 | 1001-5000 | Devens, United States | Python, AutoCAD, SolidWorks | United States |
TerraPower
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
70 | – | – | – | 501-1000 | Bellevue, United States | ASME NQA-1, Python, Microsoft Excel | United States |
Antares Nuclear
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
77 | – | $380M | Venture round $60M2026 | 201-500 | Torrance, United States | Python, MATLAB, ASME NQA-1 | United States |
Type One Energy
In common: Nuclear Energy, Nuclear Engineering · Python, C++, MATLAB · headquarters in United States |
34 | – | $200M | Venture round $200M2026 | 51-200 | Knoxville, United States | Python, ANSYS, MATLAB | United States |
Centrus Energy
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, MATLAB · headquarters in United States |
71 | – | – | – | 201-500 | Bethesda, United States | Microsoft Excel, ASME NQA-1, GD&T | United States |
NuScale Power
In common: Nuclear Energy, Nuclear Engineering · Python, SQL, C++ · headquarters in United States |
36 | – | – | – | – | Corvallis, United States | ASME NQA-1, NRC Licensing, Python | United States |
How the list is made
The list comes from Alion's similar-companies engine, the same one AI agents query through the Alion MCP server. A company ranks higher when it shares more of Kairos Power's industry segments and is less spread over others, when its job postings name the same technologies, when it is headquartered in the same country and when its size is close. The list is rebuilt every week.
How to cite this page
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page.
Alion, "Kairos Power competitors and alternatives: 10 similar companies compared on hiring and funding", as of Nov 13, 2026. https://alion.io/company/kairospower/competitors