CERCA's main business is the production of fuel elements for nuclear research reactors (laminated and Triga-type fuel).
CERCA also manufactures fuel handling tools, control rods, cold sources, irradiation capsules, neutron multidetectors, and superconducting and RF cavities for high-energy physics apparatus and space applications.
At the Pierrelatte site the CERCA LEA (Laboratoire d'Etalons d'Activités - Radioactive Standard Laboratory) manufactures and commercialises radioactive standard sources. These sources are used in nuclear medicine and to calibrate radiation measurement equipment in industry, laboratories.