| The ATHENA Study Team (AST) |
| David Lumb (ESA Study Scientist, AST Chair) | ESA/ESTEC | The Netherlands |
| Kirpal Nandra (AST Vice-Chair) | Max-Planck-Institut für extraterrestrische Physik, Garching | Germany |
| Xavier Barcons | Universidad de Cantabria, Santander | Spain |
| Didier Barret | Institut de Recherche en Astrophysique et Planétologie, Toulouse | France |
| Anne Decourchelle | CEA-Saclay | France |
| Jan-Willem Den Herder | SRON Netherlands Institute for Space Research | The Netherlands |
| Giorgio Matt | Universitá Roma TRE | Italy |
| Luigi Piro | IASF/CNR, Rome | Italy |
| Salvatore Sciortino | Osservatorio Astronomico di Palermo | Italy |
| Lothar Strüder | Max-Planck-Institut Halbleiterlabor, Munich | Germany |
| Mike Watson | University of Leicester | United Kingdom |
| Richard (Dick) Willingale | University of Leicester | United Kingdom |
| Tadayasu Dotani | JAXA representative | |
| Nicholas White | NASA representative | |
