United Kingdom

• BP Alternative Energy
• Centrica plc
• CIRIA Construction Industry Research and Information Association
• CoRWM Committee on Radioactive Waste Management
• BEIS Department for Business, Energy & Industrial Strategy
• DEFRA Department for Environment, Food and Rural Affairs
• DSRL Dounreay Site Restoration Ltd (now part of Nuclear Restoration Services)
• EDF Energy
• EA Environment Agency
• Energean
• FSA Food Standards Agency
• HSE Health and Safety Executive
• ICL Boulby
• LLWR Low Level Waste Repository Ltd (now part of Nuclear Waste Services)
• Magnox Ltd (now part of Nuclear Restoration Services)
• National Grid
• NDA Nuclear Decommissioning Authority
• NRSNuclear Restoration Services
• NWSNuclear Waste Services
• OGA (now North Sea Transition Authority)
• ONR Office for Nuclear Regulation
• Perenco
• Rolls Royce plc
• RWM Radioactive Waste Management Limited (now part of Nuclear Waste Services)
• Sellafield Ltd
• Spirit Energy
• UKAEA United Kingdom Atomic Energy Authority
• Urenco
• Veolia Environmental Services
• VPG
• Wave-Tricity Ltd

Europe (non-UK)

• FANC Federaal Agentschap voor Nucleaire Controle
• ONDRAF Organisme national des déchets radioactifs et des matières fissiles enrichies
• SCK-CEN Belgian Nuclear Research Centre
• SERAW State Enterprise Radioactive Waste
• Fortum Power and Heat Ltd
• ImplantCast
• STUK Finnish Radiation and Nuclear Safety Authority
• ANDRA French National Radioactive Waste Management Agency
• Assystem
• BNK Bozon Nukleáris Méréstechnikai Kft
• ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development
• SOGIN Società Gestione Impianti Nucleari.
• LEI Lithuanian Energy Institute
• Ministry of Economy of the Republic of Lithuania
• Akzo Nobel Industrial Chemicals B.V.
• Shell International Exploration & Production BV
• COVRA Central Organisation For Radioactive Waste
• DNV Det Norske Veritas
• Equinor
• Neptune Energy
• DSA Norwegian Radiation and Nuclear Safety Authority
• Norwegian Ministry of Trade and Industry
• CITON Centrul de Inginerie Tehnologica Obiective Nucleare
• IFIN-HH "Horia Hulubei" National Institute of Research and Development in Physics and Nuclear Engineering
• Romanian Ministry of Public Finance
• IBRAE Nuclear Safety Institute of the Russian Academy of Sciences
• Moscow Scientific and Industrial Firm 'Radon'
• RSC VNIPIpromtechnology
• DECOM Slovakia Ltd
• ARAO Slovenian Agency for Radwaste Management
• IJS Jozef Stefan Institute
• Arquimea Ingeneria, S.L.U
• CIEMAT Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas
• CSN Spanish Nuclear Safety Council
• ENRESA Empresa Nacional de Residuos Radiactivos S.A.
• Westinghouse Electric
• SSM Swedish Radiation Safety Authority
• Nagra Swiss National Cooperative for the Disposal of Radioactive Waste
• PSI Paul Scherrer Institute

North America

• AECL Atomic Energy of Canada Ltd
• CNL Canadian Nuclear Laboratories
• NWMO Canadian Nuclear Waste Management Organization
• OPG Ontario Power Generation
• DOE United States Department of Energy

South America

• CNEA Comision Nacional de Energia Atomica
• CNEN Comissao Nacional de Energia Nuclear

Africa

• GAEC Ghana Atomic Energy Commission
• Pebble Bed Modular Reactor (Pty) Limited
• NECSA South African Nuclear Energy Corporation (Ltd)

Asia and the Far East

• BAEC Bangladesh Atomic Energy Commission
• Beijing Nuclear and Radiation Safety Centre
• JAEA Japan Atomic Energy Agency
• JANUS Japan NUS Co. Ltd.
• The Japan Atomic Power Company
• JGC Corporation (Nikki KK)
• JNES Japan Nuclear Energy Safety Organization
• JNFL Japan Nuclear Fuel Limited
• Kajima Corporation
• Mitsubishi Corporation
• Mitsubishi Materials Corporation
• MRI Mitsubishi Research Institute
• NIES National Institute for Environmental Studies
• NUMO Nuclear Waste Management Organization of Japan
• RWMC Radioactive Waste Management Funding and Research Centre
• TEPCO Tokyo Electric Power Company
• KAERI Korea Atomic Energy Research Institute
• KHNP Korea Hydro and Nuclear Power Co Ltd
• KINS Korea Institute of Nuclear Safety
• Radcore, Korea
• AELB Malaysian Atomic Energy Licensing Board
• Malaysian Nuclear Agency
• INER, Taiwan

Australia

• ARPANSA Australian Radiation Protection and Nuclear Safety Agency
• Tellus Holdings Ltd

International

• BIOPROTA
• EC European Commission
• IAEA International Atomic Energy Agency
• NEA Organisation for Economic Co-operation and Development's Nuclear Energy
• IEA International Energy Agency