Westinghouse Service Nucléaire is an affiliate of the globally acting Westinghouse Electric Company LLC. headquartered in Monroeville, Pennsylvania, USA. Westinghouse employs more than 9,000 people organized in three business units: nuclear and engineering services, nuclear fuels and new nuclear plants.

Westinghouse Service Nucléaire is reporting to the business unit Nuclear Services. It operates in the areas of field services, engineering services and repair, replacement and automation services. It employs 200 people divided between Les Ulis, Manosque and Marseille.

In addition, Westinghouse Service Nucléaire supports the sales of Westinghouse fuel assemblies in France.