| Academia Europaea R. Loll, S.J. de Jong, R. Snellings |
| Anti-DDos-Coalitie T. Suerink |
| Astroparticle Physics Committee DESY, D. Samtleben |
| ATLAS Contact for Diversity and Inclusion – F. de Almeida Dias |
| ATLAS ITk Pixel (Outer System) Global Mechanics and Integration Final Design Review – M.Vreeswijk (member) |
| CERN Council E. Laenen (Scientific delegate for the Netherlands) |
| CERN Theory Department External Review Committee E. Laenen |
| Committee for Astroparticle Physics in the Netherlands (CAN) D. Samtleben (chair) , C. van den Broeck, A. Freise, S. Hild, J.R. Hörandel, C. Timmermans |
| Dutch Physics Council, R. Snellings (member Executive Board) |
| Dutch Research School Theoretical Physics (Nikhef members only) R. Fleischer, J. Rojo (Governing Board), S. Bentvelsen (restricted ECFA), N. de Groot, E. Laenen, M. Postma, van Leeuwen, M. Merk, F. Saueressig (Educational Board) |
| e-Infrastructure Reflection Group (e-IRG), ESFRI SWG DIGIT: A. van Rijn (Dutch delegate) |
| ECFA workshop for future ee Higgs factory, WG1 (physics) convener: Patrick Koppenburg |
| EGO Virgo Governance committee – R. Aben (deputy chair) |
| EGO Virgo Organisational review committee – R. Aben, F. Linde |
| Einstein Telescope Observational Science Board, Division 1 – C. Van Den Broeck (co-chair) |
| Einstein Telescope Observational Science Board, Division 10 – A. Samajdar (co-chair) |
| European Particle Physics Communication Network (EPPCN) V. Mexner (co-chair), M. van Calmthout |
| European Physical Society , Energy group : P. Koppenburg (member) |
| Fonds Wetenschappelijk Onderzoek, Vlaanderen – Expertpanel Physics F. de Almeida Dias |
| Grid Community Forum M. Sallé (Project Management Committee) |
| IGWN Design Committee: A. Freise, C. Van Den Broeck (members) |
| International Conference on B Physics at Frontier Machines (BEAUTY) R. Fleischer (Co-chair Int. Adv. Comm.) |
| International Conference On Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter) M. van Leeuwen, R. Snellings (Int. Adv. Comm.) |
| LDG WG Meeting on the Sustainability Assessment of Accelerators: P. Koppenburg (member) |
| LIGO Collaboration Management Team, J. Steinlechner (member) |
| Nuclear Physics European Collaboration Committee (NuPECC) R. Snellings |
| NWO – PC-GWI (permanente Commissie Grootschalige Wetenschappelijke Infrastructuur) M.P. Decowski, D. Groep |
| NWO Research Community – Particle and Astroparticle Physics S. Bentvelsen, D. Boer, M.P. Decowski (chair), S. Hild, R. Loll, D. Samtleben |
| NWO Research Community – Physics for Technology and Instrumentation S. Steinlechner |
| Radboud University Nijmegen, Master specialization coordiator Particle and Astrophysics – S. Westhoff |
| Stichting Hoge-Energie Fysica S. Bentvelsen (chair), Th. Peitzmann, A. van Rijn (treasurer), E. Laenen, D. Boer, G. Raven, R. Loll |
| Stichting Natuurkunde.nl F. Linde (chair), A. van Rijn (treasurer), P. Mulders, M. van Calmthout (editorial board) |
| Universiteit Leiden – Chairman Hovo committee J.W. van Holten |
| Universiteit Leiden – Exam Committee Physics D. Samtleben |
| Universiteit van Amsterdam — Director Institute of High Energy Physics P. de Jong, M.P. Decowski |
| Universiteit van Amsterdam — Diversity Council J. de Vries (chair), F. de Almeida Dias |
| Universiteit van Amsterdam – BKO Committee, M. Vreeswijk (Chair) |
| Universiteit van Amsterdam – Director Institute of Physics E. Laenen |
| University of Edinburgh – Higgs Centre E. Laenen (associate member) |
| Virgo Core Program Committee – C. Van Den Broeck (chair) |
