Internal Funded Partners
| Short name | Organisation legal full name | Country | ||
| 1 |  | PTB | Physikalisch-Technische Bundesanstalt | Germany |
| 2 |  | CMI | Cesky Metrologicky Institut | Czech Republic |
| 3 |  | GUM | Central Office of Measures | Poland |
| 4 |  | METAS | Eidgenössisches Institut für Metrologie METAS | Switzerland |
| 5 |  | NPL | NPL Management Limited | United Kingdom |
External Funded Partners
| Short name | Organisation legal full name | Country | ||
| 1 |  | ADVACAM | ADVACAM, s.r.o. | Czech Republic |
| 2 |  | CHUV | Centre hospitalier universitaire vaudois | Switzerland |
| 3 |  | CSIC | Agencia Estatal Consejo Superior de Investigaciones Cientificas – Instituto de Microelectrónica de Barcelona | Spain |
| 4 |  | Curie | Institut Curie | France |
| 5 |  | FZU | ELI Beamlines of Fyzikální ústav AV ČR, v.v.i. | Czech Republic |
| 6 |  | PoliMi | Politecnico di Milano | Italy |
| 7 |  | QUB | Queen’s University Belfast | United Kingdom |
| 8 |  | UJF CAS | Ústav jaderné fyziky AV ČR, v.v.i. | Czech Republic |
| 9 |  | USC | Universidad de Santiago de Compostela | Spain |
Unfunded Partners
| Short name | Organization | Country | |||
| 1 |  | HZDR | Helmholtz-Zentrum Dresden-Rossendorf with OncoRay | Germany | |
| 2 |  | PTW | PTW Freiburg GmbH | Germany |
Collaborators
| Short Name | Organization | Country | ||
| 1 |  | UO | University of Oldenburg | Germany |
| 2 |  | SUN | Sun Nuclear | United States |
| 3 |  | VAR | Varian Medical Systems | United States |
| 4 |  | LPC | Laboratoire de Physique Corpusculaire de CAEN | France |
| 5 |  | IBA | IBA Dosimetry | Belgium |
| 6 |  | MA | EBG MedAustron | Austria |
| 7 |  | NRC | National Research Council Canada | Canada |
Stakeholder Advisory Committee
| Name | Relevant expertise | Position | Country | |
| 1 | Dr. Marie Dutreix | FLASH | President of the Société Française du Cancer, Director of Research at Centre national de la recherche scientifique | France |
| 2 | Prof. Dr. Katia Parodi | Laser-driven beams | Chair of Medical Physics at Ludwig-Maximilians-Universität München, Vice-President of German Society for Medical Physics | Germany |
| 3 | Dr. Kristoffer Petersson | FLASH | “Physics and Biology of FLASH Radiation” group leader at Oxford Institute for Radiation Oncology, Oxford University | Sweden |
| 4 | Dr. Hugo Palmans | Dosimetry | Dosimetry Group Leader at MedAustron, Chair of IAEA TRS 483 | Austria |
| 5 | Dr. Sairos Safai | Dosimetry | Dosimetry and Imaging Group leader at Paul Scherrer Institut | Switzerland |
| 6 | Prof. Karen Kirkby | FLASH | Richard Rose Chair for Proton Therapy Physics – a joint appointment between the University of Manchester and The Christie NHS Foundation Trust, coordinator of the project INSPIRE | United Kingdom |
| 7 | Prof. Stuart Green | Laser-driven beams | Head of Medical Physics at University Hospital Birmingham, chair of dosimetry code of practice WG, pioneer in laser-induced proton beams | United Kingdom |
| 8 | Prof. Marco Durante | FLASH | Director of the Biophysics Department at GSI Helmholtz Centre for Heavy Ion Research | Germany |
| 9 | Prof. Valentin Djonov | Microbeam radiation therapy | Chair of the Institute of Anatomy of the University of Bern | Switzerland |