United Kingdom Atomic Energy Authority competitors and alternatives
As of Nov 14, 2026, Alion lists 10 companies most like United Kingdom Atomic Energy Authority: Canadian Nuclear Laboratories, Australian Nuclear Science and Technology Organisation, Commonwealth Fusion Systems, Westinghouse Electric Company, Argonne National Laboratory, Helion Energy, Sizewell C, TerraPower, BWXT and General Matter.
- United Kingdom Atomic Energy Authority itself has 28 open roles on Alion.
- Of them, Westinghouse Electric Company is hiring the most, with 863 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.
United Kingdom Atomic Energy Authority 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 |
|---|---|---|---|---|---|---|---|---|
United Kingdom Atomic Energy Authority
This company
|
28 | – | – | – | 1001-5000 | Culham, United Kingdom | C++, Python, Fortran | United Kingdom |
Canadian Nuclear Laboratories
In common: Nuclear Energy, Nuclear Engineering, Research Institutes · Python, C++, Power BI |
89 | – | – | – | 1001-5000 | Chalk River, Canada | Windows, AutoCAD, EVMS | Canada |
Australian Nuclear Science and Technology Organisation
In common: Nuclear Energy, Research Institutes, Nuclear Engineering · Python, Rust, SolidWorks |
11 | – | – | – | 1001-5000 | Sydney, Australia | GMP, Mass Spectrometry, Linux | Australia |
Commonwealth Fusion Systems
In common: Nuclear Energy, Nuclear Engineering · Python, Rust, C++ |
130 | +17%since Oct 12, 2026 | $2.7B | Series B $863M2025 | 1001-5000 | Devens, United States | Python, AutoCAD, SolidWorks | United States |
Westinghouse Electric Company
In common: Nuclear Energy, Nuclear Engineering · Python, C, C++ |
863 | – | – | – | 5000+ | Cranberry Township, United States | Power BI, Python, Microsoft Excel | United States, Poland, Spain +11 more |
Argonne National Laboratory
In common: Nuclear Energy, Research Institutes · Python, C, C++ |
83 | – | – | – | 1001-5000 | Lemont, United States | Python, HPC, Machine Learning | United States |
Helion Energy
In common: Nuclear Energy, Nuclear Engineering · Python, Rust, C++ |
75 | – | $500M | Venture round $500M2021 | 501-1000 | Everett, United States | Python, MATLAB, SolidWorks | United States, Switzerland |
Sizewell C
In common: Nuclear Energy, Nuclear Engineering · Python, Power BI, AutoCAD · headquarters in United Kingdom |
111 | – | – | Venture round2025 | 1001-5000 | London, United Kingdom | HPC, Microsoft Excel, Power BI | United Kingdom |
TerraPower
In common: Nuclear Energy, Nuclear Engineering · Python, C++, Bash |
72 | – | – | – | 501-1000 | Bellevue, United States | ASME NQA-1, Python, Microsoft Excel | United States |
BWXT
In common: Nuclear Energy, Nuclear Engineering · Python, C++, Bash |
244 | – | – | – | 5000+ | Lynchburg, United States | GD&T, SolidWorks, ASME NQA-1 | United States, Canada |
General Matter
In common: Nuclear Energy, Nuclear Engineering · Python, Rust, C |
125 | +14%since Oct 12, 2026 | – | – | 51-200 | San Francisco, United States | Python, AutoCAD, C++ | 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 United Kingdom Atomic Energy Authority'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, "United Kingdom Atomic Energy Authority competitors and alternatives: 10 similar companies compared on hiring and funding", as of Nov 14, 2026. https://alion.io/company/ukaea/competitors