| Name | Country | Title | Affiliation | MC member role | Workgroup(s) |
| Caslav Brukner | Austria | Prof | Faculty of Physics, University of Vienna | MC Substitute | WG1, WG3 | |
| Johanna Knapp | Austria | Dr. | | | | |
| Harold Steinacker | Austria | Dr. | University of Vienna | MC Member | WG1, WG2, WG3 | WG3 leader |
| Pierre Bieliavsky | Belgium | Prof | | | | |
| Vladimir Dobrev | Bulgaria | Prof | Institute for Nuclear Research and Nuclear Energy,Bulgarian Academy of Sciences | MC Substitute | WG2, WG4 | |
| Emil Nissimov | Bulgaria | Prof | Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria | MC Member | WG3 | |
| Svetlana Pacheva | Bulgaria | Prof | Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria | MC Substitute | WG3, WG5 | |
| Larisa Jonke | Croatia | Dr. | Rudjer Boskovic Institute | MC Member | WG2, WG3, WG4 | WG4 vice leader |
| Stjepan Meljanac | Croatia | Dr. | | | | |
| Kornelija Passek-Kumericki | Croatia | Dr. | | | | |
| Andjelo Samsarov | Croatia | Dr. | | | | |
| Josip Trampetic | Croatia | Dr. | | | | |
| Klaus Bering | Czech Republic | Dr. | Masaryk U | MC Substitute | WG2 | |
| Alfredo Iorio | Czech Republic | Prof | Charles University | MC Substitute | | |
| Branislav Jurco | Czech Republic | Dr. | Charles University | MC Member | WG2 | WG2 leader |
| Rikard von Unge | Czech Republic | Prof | Masaryk university | MC Substitute | | |
| Jan Ambjørn | Denmark | Prof | | | | |
| Bergfinnur Durhuus | Denmark | Prof | | | | |
| Ryszard Nest | Denmark | Prof | | | | |
| Niels Obers | Denmark | Prof | Niels Bohr Institute, University of Copenhagen | MC Member | WG3 | |
| Vincent Rivasseau | France | Prof | Université Paris-Sud | MC Member | WG3 | |
| Carlo Rovelli | France | Prof | | | | |
| Dorothea Bahns | Germany | Prof | | MC Member | | |
| Olaf Lechtenfeld | Germany | Prof | Leibniz University Hannover, Germany | MC Member | WG2, WG3, WG4 | WG4 leader |
| Catherine Meusburger | Germany | Prof | Friedrich-Alexander-Universitaet Erlangen-Nuernberg | MC Substitute | WG3, WG4, WG5 | Web moderator WG3 |
| Peter Schupp | Germany | Prof | Jacobs University Bremen | MC Substitute | WG2, WG3, WG4, WG5 | WG5 vice leader |
| Konstantinos Anagnostopoulos | Greece | Prof | National Technical University of Athens | MC Substitute | | |
| George Savvidy | Greece | Prof | National Center for Scientific Research "Demokritos" , Institute of Nuclear and Particle Physics | MC Member | WG1 | |
| George Zoupanos | Greece | Prof | | MC Member | WG1 | WG1 leader |
| Gabor Etesi | Hungary | Dr. | Budapest University of Technology and Economics | MC Member | WG2, WG3 | |
| Valentina Giangreco Marotta Puletti | Iceland | Dr. | University of Iceland | MC Substitute | WG3, WG4, WG5 | |
| Thordur Jonsson | Iceland | Prof | | | | |
| Larus Thorlacius | Iceland | Prof | University of Iceland | MC Member | WG3, WG4, WG5 | |
| Tommy Curran | Ireland | Dr. | | | | |
| Brian Dolan | Ireland | Dr. | Maynooth University | MC Member | WG1, WG2, WG3 | |
| Denjoe O'Connor | Ireland | Prof | School Of Theoretical Physics, Dublin Institute for Advanced Studies | MC Member | WG1, WG2, WG3 | |
| Paolo Aschieri | Italy | Dr. | Università del Piemonte Orientale | MC member Action Vice-Chair | | |
| Marco Genovese | Italy | Dr. | inrim | MC Member | WG1 | |
| Fedele Lizzi | Italy | Prof | Università di Napoli Federico II | MC Substitute | WG1, WG2, WG5 | WG1 vice leader, Web moderator WG1 |
| Patrizia Vitale | Italy | Prof | Universita` di Napoli Federico II & INFN | MC Substitute | WG2, WG3, WG4 | Web moderator WG4 |
| Martin Schlichenmaier | Luxembourg | Prof | University of Luxembourg | MC Member | WG2, WG3, WG4 | WG2 vice leader |
| Martin Lukarevski | Macedonia, the former Yugoslav Republic of | Dr. | University "Goce Delcev" - Stip | MC Member | WG1, WG2, WG4 | |
| André Xuereb | Malta | Dr. | University of Malta | MC Member | | |
| Simon Brain | Netherlands | Dr. | Radboud University Nijmegen | MC Substitute | WG1, WG2 | |
| Francesca Vidotto | Netherlands | Dr. | Radboud University Nijmegen | MC Member | WG3, WG5 | |
| Walter van Suijlekom | Netherlands | Dr. | Radboud University Nijmegen | MC Member | WG1, WG2, WG5 | Website administrator, Web moderator WG5 |
| Michal Eckstein | Poland | Dr. | Jagiellonian University, Krakow | MC Substitute | WG1, WG2, WG3, WG4 | |
| Wojciech Kaminski | Poland | Dr. | | | WG3 | |
| Jerzy Lewandowski | Poland | Prof | | | | |
| Andrzej Sitarz | Poland | Prof | | | | |
| Orfeu Bertolami | Portugal | Prof | Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto | MC Member | WG1 | |
| José Mourão | Portugal | Prof | Departamento de Matemática, Instituto Superior Técnico, Lisbon University | MC Member | WG2, WG4 | |
| Roger Picken | Portugal | Prof | Instituto Superior Técnico, Universidade de Lisboa | MC Substitute | WG2 | |
| Maja Buric | Serbia | Prof | University of Belgrade, Faculty of Physics | MC Member | WG1, WG3, WG5 | |
| Branislav Cvetkovic | Serbia | Dr. | | | | |
| Peter Presnajder | Slovakia | Prof | Comenius University in Bratislava, Faculty of Mathematics, Physics and Informatics | MC member | WG2, WG3 | |
| Karin Cvetko-Vah | Slovenia | Prof | University of Ljubljana | MC Member | WG2, WG5 | |
| Martin O'Loughlin | Slovenia | Prof | The University of Nova Gorica | MC Member | WG3 | |
| Manuel Asorey | Spain | Prof | Universidad de Zaragoza | MC Member | WG1, WG2 | |
| José Mariano Gracia-Bondía | Spain | Dr. | Universidad de Zaragoza | MC Substitute | WG1, WG2 | |
| Carmelo Perez Martin | Spain | Prof | Universidad Complutense de Madrid | MC member | WG1, WG2, WG3 | |
| Joakim Arnlind | Sweden | Prof | Linköping University | MC Member | WG2, WG3 | |
| Maxim Zabzine | Sweden | Prof | | | | |
| Anton Alekseev | Switzerland | Prof | | | | |
| Alberto Cattaneo | Switzerland | Prof | University of Zurich | MC Member | | |
| Cemsinan Deliduman | Turkey | Prof | Mimar Sinan Fine Arts University | MC Member | WG2, WG3 | |
| John Barrett | United Kingdom | Prof | Universtity of Nottingham | MC Member | WG1, WG2, WG3, WG4, WG5 | WG3 vice leader |
| Mairi Sakellariadou | United Kingdom | Prof | King's College London, Uninersity of London | MC Member | WG1, WG3, WG5 | WG5 leader |
| Richard Szabo | United Kingdom | Prof | Heriot-Watt University | Action Chair | | |
| Apimook Watcharangkool | United Kingdom | MSc. | king's college london | | WG1, WG2 | |
