- FZ Jülich (Germany)
- SCK•CEN (Belgium)
- ENEA Casaccia (Italy)
- CEA Cadarache (France)
- Nuclear Engineering Seibersdorf GmbH (Austria)
- CIEMAT Madrid (Spain)
- NRG Arnhem (Netherlands)
- JRC ISPRA (Italy)
- VTT Espoo (Finland)
- BfS Salzgitter (Germany)
- ENRESA Madrid (Spain)
- TUM Garching (Germany)
- ICHTJ Warsaw (Poland)