National Metrology Institutes and Designated Institutes
| Short name | Organisation legal full name | Country | |
| 1 | NPL | NPL Management Limited | United Kingdom |
| 2 | BEV-PTP | Physikalisch- Technischer Pruefdienst des Bundesamt fuer Eich- und Vermessungwesen | Austria |
| 3 | CEA | Commissariat à l'énergie atomique et aux énergies alternatives | France |
| 4 | CMI | Cesky Metrologicky Institut | Czech Republic |
| 5 | ENEA | Agenzia Nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile | Italy |
| 6 | SCK•CEN | Studiecentrum voor Kernenergie, Centre d'Etude de l'Energie Nucléaire, Fondation d’Utilité Publique | Belgium |
Clinical Research Institutions
| Short name | Organisation legal full name | Country | |
| 1 | ASMN | Arcispedale Santa Maria Nuova Azienda Ospedaliera | Italy |
| 2 | Christie | The Christie NHS Foundation Trust | United Kingdom |
| 3 | INSERM | Institut National de la Sante et de la Recherche Medicale | France |
| 4 | LUND | Lunds Universitet | Sweden |
| 5 | THG | "Theagenio" Cancer Hospital of Thessaloniki | Greece |
| 6 | UKW | Universitätsklinikum Würzburg – Klinikum der bayerischen Julius – Maximilians – Universität | Germany |
| 7 | AOSP | Azienda Ospedaliero Universitaria Policlinico S. Orsola Malpighi | Italy |
| 8 | AUSL | Azienda Unità Sanitaria Locale Latina | Italy |
| 9 | BRFAA | Idryma Iatroviologikon Ereunon Akademias Athinon | Greece |
| 10 | CARD | Cardiff University | United Kingdom |
| 11 | OPBG | Ospedale Pediatrico Bambino Gesù | Italy |
| 12 | OUHT | Oxford University Hospitals NHS Foundation Trust | United Kingdom |
| 13 | RSCH | Royal Surrey County Hospital NHS Foundation Trust | United Kingdom |
Collaborators
| Short name | Organisation legal full name | Country | |
| 1 | Sirtex | Sirtex Technology Pty Ltd | Australia |
| 2 | Hermes | Hermes Medical Solutions | United Kingdom |
Scientific Advisory Committee
| Name | Organization | Country | |
| 1 | Irène Buvat | CEA, Service Hospitalier Frédéric Joliot | France |
| 2 | Glenn Flux | The Royal Marsden NHS Foundation Trust | United Kingdom |
| 3 | Markus Luster | University Clinic of Giessen and Marburg | Germany |
| 4 | George Sgouros | Johns Hopkins University | USA |