It conducts fundamental and applied research into many areas, including the design of nuclear reactors, the manufacturing of integrated circuits, the use of radionucleides for curing illnesses, seismology and tsunami propagation, the safety of computerized systems, etc.

CEA Tech focuses on technological research and development in the field of energy, IT (both hardware and software) and healthcare informatics.

The CEA Tech division is further divided into three research institutes: The current director of DRT since january 2023 is Julie Galland.

Moreover, two of the ten CEA centers across France have joined with the University of Paris-Saclay[21] to develop high quality research and training.

CEA maintains a strong presence in training to master and engineer level by administering INSTN, wherein various courses are taught by its researchers.