Oklo competitors and alternatives
As of Nov 13, 2026, Alion lists 10 companies most like Oklo: X-energy, Valar Atomics, Radiant Nuclear, Helion Energy, Aalo Atomics, GE Vernova, General Matter, TerraPower, Kairos Power and Commonwealth Fusion Systems.
- Oklo itself has 43 open roles on Alion.
- Of them, GE Vernova is hiring the most, with 1,813 open roles.
- Commonwealth Fusion Systems has raised the most venture funding on record: $2.7B.
- Open roles at Kairos Power rose the most: from 35 on Oct 12, 2026 to 64 now.
Oklo 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 |
|---|---|---|---|---|---|---|---|---|
Oklo
This company
|
43 | -32%since Oct 12, 2026 | – | – | 501-1000 | Santa Clara, United States | Python, SolidWorks, CI/CD | United States |
X-energy
In common: Nuclear Energy · Python, JavaScript, TypeScript · headquarters in United States |
97 | – | – | – | 1001-5000 | Rockville, United States | Verification & Validation, AWS, Function Calling | United States |
Valar Atomics
In common: Nuclear Energy · Python, JavaScript, Rust · headquarters in United States |
113 | +19%since Oct 12, 2026 | $1.2B | Series B $1.2B2026 | 201-500 | El Segundo, United States | Python, SQL, OPC UA | United States |
Radiant Nuclear
In common: Nuclear Energy · Python, JavaScript, Rust · headquarters in United States |
97 | – | – | – | 201-500 | El Segundo, United States | Python, C++, C# | United States |
Helion Energy
In common: Nuclear Energy · Python, JavaScript, Rust · headquarters in United States |
77 | – | $500M | Venture round $500M2021 | 501-1000 | Everett, United States | Python, MATLAB, SolidWorks | United States, Switzerland |
Aalo Atomics
In common: Nuclear Energy · Python, Rust, C++ · headquarters in United States |
68 | +19%since Oct 12, 2026 | $127M | Venture round $100M2025 | 51-200 | Austin, United States | Python, SolidWorks, ASME NQA-1 | United States |
GE Vernova
In common: Nuclear Energy · Python, JavaScript, Rust · headquarters in United States |
1,813 | – | – | – | 5000+ | Cambridge, United States | Python, MATLAB, AutoCAD | United States, India, France +55 more |
General Matter
In common: Nuclear Energy · Python, JavaScript, Rust · headquarters in United States |
125 | +14%since Oct 12, 2026 | – | – | 51-200 | San Francisco, United States | Python, AutoCAD, C++ | United States |
TerraPower
In common: Nuclear Energy · Python, C++, SolidWorks · headquarters in United States |
70 | – | – | – | 501-1000 | Bellevue, United States | ASME NQA-1, Python, Microsoft Excel | United States |
Kairos Power
In common: Nuclear Energy · Python, JavaScript, TypeScript · headquarters in United States |
64 | +83%since Oct 12, 2026 | $100M | Venture round $100M2026 | 201-500 | Alameda, United States | SolidWorks, Python, MATLAB | United States |
Commonwealth Fusion Systems
In common: Nuclear Energy · Python, Rust, 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 |
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 Oklo'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, "Oklo competitors and alternatives: 10 similar companies compared on hiring and funding", as of Nov 13, 2026. https://alion.io/company/oklo-inc/competitors