ENSA is a state owned company owned 78.75% by Sociedad Estatal de Participaciones Industriales (SEPI) and 21.25% by the Dirección General de Patrimonio del Estado. Its core business is the supply of high-quality components and services for nuclear power plants.

Westinghouse Technology Services is 70% owned by Westinghouse Electric Co. and 30% by Equipos Nucleares. It supplies fuel, services, technology, engineering, and equipment for the commercial nuclear power industry.

Considering the direct shareholdings, ENWESA’s shareholding is as follows: