{"company":{"id":6682,"name":"United Kingdom Atomic Energy Authority","domain":"ukaea.uk","url":"https://alion.io/company/ukaea"},"answer":"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.","highlights":["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."],"as_of":"2026-11-14","cite":"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","indexable":true,"target":{"name":"United Kingdom Atomic Energy Authority","url":"https://alion.io/company/ukaea","domain":"ukaea.uk","open_roles":28,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Culham","country":"GB"},"technologies":["C++","Python","Fortran"],"hiring_countries":["GB"],"similarity":null},"competitors":[{"name":"Canadian Nuclear Laboratories","url":"https://alion.io/company/cnl-ca","domain":"cnl.ca","open_roles":89,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Chalk River","country":"CA"},"technologies":["Windows","AutoCAD","EVMS"],"hiring_countries":["CA"],"similarity":{"score":20.35,"shared_segments":["Nuclear Energy","Nuclear 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Systems","url":"https://alion.io/company/commonwealth-fusion-systems","domain":"cfs.energy","open_roles":130,"open_roles_change":{"since":"2026-10-12","from":111,"to":130,"pct":17},"funding":{"total_raised_usd":2663000000,"last_round":"series_b","last_round_usd":863000000,"last_round_date":"2025-09-02","lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Devens","country":"US"},"technologies":["Python","AutoCAD","SolidWorks"],"hiring_countries":["US"],"similarity":{"score":18.02,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","Rust","C++","MATLAB","SolidWorks"],"same_hq_country":false}},{"name":"Westinghouse Electric Company","url":"https://alion.io/company/westinghousenuclear","domain":"westinghousenuclear.com","open_roles":863,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"5000+","headquarters":{"city":"Cranberry Township","country":"US"},"technologies":["Power BI","Python","Microsoft Excel"],"hiring_countries":["US","PL","ES"],"similarity":{"score":17.67,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","C","C++","Bash","MATLAB"],"same_hq_country":false}},{"name":"Argonne National Laboratory","url":"https://alion.io/company/argonne","domain":"argonne.gov","open_roles":83,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"Lemont","country":"US"},"technologies":["Python","HPC","Machine Learning"],"hiring_countries":["US"],"similarity":{"score":17.45,"shared_segments":["Nuclear Energy","Research Institutes"],"shared_technologies":["Python","C","C++","Bash","Julia"],"same_hq_country":false}},{"name":"Helion Energy","url":"https://alion.io/company/helionenergy","domain":"helionenergy.com","open_roles":75,"open_roles_change":null,"funding":{"total_raised_usd":500000000,"last_round":"venture","last_round_usd":500000000,"last_round_date":"2021-11-09","lead_investors":[]},"size_band":"501-1000","headquarters":{"city":"Everett","country":"US"},"technologies":["Python","MATLAB","SolidWorks"],"hiring_countries":["US","CH"],"similarity":{"score":17.27,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","Rust","C++","Julia","MATLAB"],"same_hq_country":false}},{"name":"Sizewell C","url":"https://alion.io/company/sizewellc","domain":"sizewellc.com","open_roles":111,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":"venture","last_round_usd":null,"last_round_date":"2025-11-04","lead_investors":[]},"size_band":"1001-5000","headquarters":{"city":"London","country":"GB"},"technologies":["HPC","Microsoft Excel","Power BI"],"hiring_countries":["GB"],"similarity":{"score":17.22,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","Power BI","AutoCAD","HPC","Microsoft Excel"],"same_hq_country":true}},{"name":"TerraPower","url":"https://alion.io/company/terrapower","domain":"terrapower.com","open_roles":72,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"501-1000","headquarters":{"city":"Bellevue","country":"US"},"technologies":["ASME NQA-1","Python","Microsoft Excel"],"hiring_countries":["US"],"similarity":{"score":16.87,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","C++","Bash","MATLAB","Fortran"],"same_hq_country":false}},{"name":"BWXT","url":"https://alion.io/company/bwxt","domain":"bwxt.com","open_roles":244,"open_roles_change":null,"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"5000+","headquarters":{"city":"Lynchburg","country":"US"},"technologies":["GD&T","SolidWorks","ASME NQA-1"],"hiring_countries":["US","CA"],"similarity":{"score":16.6,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","C++","Bash","MATLAB","Fortran"],"same_hq_country":false}},{"name":"General Matter","url":"https://alion.io/company/general-matter","domain":"generalmatter.com","open_roles":125,"open_roles_change":{"since":"2026-10-12","from":110,"to":125,"pct":14},"funding":{"total_raised_usd":null,"last_round":null,"last_round_usd":null,"last_round_date":null,"lead_investors":[]},"size_band":"51-200","headquarters":{"city":"San Francisco","country":"US"},"technologies":["Python","AutoCAD","C++"],"hiring_countries":["US"],"similarity":{"score":16.02,"shared_segments":["Nuclear Energy","Nuclear Engineering"],"shared_technologies":["Python","Rust","C","C++","Bash"],"same_hq_country":false}}],"method":"Ranked by Alion's similar-companies engine (the MCP tool similar_companies): shared industry segments and the overlap of the two segment sets, technologies named in both companies' job postings, the same headquarters country, a size band near it. Open roles are the visible postings on Alion today; their change is shown only for boards that state posting dates.","html_url":"https://alion.io/company/ukaea/competitors","json_url":"https://alion.io/company/ukaea/competitors.json","license":"CC BY-SA 4.0","meta":{"source":"Alion","built_at":"2026-11-14T03:58:57Z","generated_at":"2026-11-14T22:27:34Z"}}