- Bel V, Belgium
- Electrabel, Belgium
- China Nuclear Power Technology Research Institute (CNPRI), China
- Nuclear and Radiation Safety Centre (NSC), China
- Nuclear Power Institute of China (NPIC), China
- Shanghai Nuclear Engineering Research, Design Institute (SNERDI), China
- Nuclear Research Institute of the Czech Republic (ÚJV Řež), Czechia
- VTT Technical Research Centre of Finland Ltd. (VTT), Finland
- Commissariat à l’Energie Atomique et aux Energies Alternatives (CEA), France
- Electricité de France (EdF), France
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), France
- BGZ Gesellschaft für Zwischenlagerung mbH, Germany
- Bundesamt für die Sicherheit der nuklearen Entsorgung (BASE), Germany
- EWN Entsorgungswerk für Nuklearanlagen GmbH, Germany
- Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany
- Framatome GmbH (Framatome), Germany
- HUN-REN Centre for Energy Research (HUN-REN EK), Hungary
- Central Research Institute of Electric Power Industry (CRIEPI), Japan
- Mitsubishi Heavy Industries, Ltd. (MHI), Japan
- Nippon Nuclear Fuel Development CO., Ltd. (NFD), Japan
- Nuclear Fuel Industries (NFI), Japan
- Nuclear Regulation Authority (NRA), Japan
- Korea Atomic Energy Research Institute (KAERI), Korea
- Korea Hydro & Nuclear Power CO., Ltd. (KHNP), Korea
- Korea Institute of Nuclear Safety (KINS), Korea
- KEPCO Nuclear Fuel (KNF), Korea
- Consejo de Seguridad Nuclear (CSN), Spain
- EMPRESA NACIONAL DE RESIDUOS RADIACTIVOS, S.A., S.M.E. (Enresa), Spain
- ENUSA Industrias Avanzadas S.A., S.M.E. (ENUSA), Spain
- OKG AB (OKG), Sweden
- Studsvik Nuclear AB (Studsvik), Sweden
- Swedish Radiation Safety Authority (SSM), Sweden
- Vattenfall Nuclear Fuel AB (VNF), Sweden
- Westinghouse Electric Sweden AB (W), Sweden
- Eidgenössisches Nuklearsicherheitsinspektorat ENSI, Switzerland
- Swissnuclear, Switzerland
- EDF Energy Nuclear Generation Ltd., United Kingdom
- National Nuclear Laboratory (NNL) Limited, United Kingdom
- Sellafield Ltd., United Kingdom
- Odessa National Polytechnic University, Ukraine
- Electric Power Research Institute EPRI
- Global Nuclear Fuels (GNF), United States of America
- United States Department of Energy (DOE), United States of America
- United States Nuclear Regulatory Commission (NRC), United States of America