ESA-Astronaut Group-1, December 1977 Claude Nicollier, Franco Malerba, Wubbo J. Ockels, Ulf D. Merbold. ESA-Astronaut Group-2, June 1993 Maurizio Cheli, Jean-Francois Clervoy, Pedro Duque, Christer Fuglesang, Marianne Cheli-Merchez, Thomas Reiter
AFGANISTAN Abdul A. Mohamand, Mohammed Masum.
AUSTRIA Franz Viehbock, Clemens Lothaller.
BELGIUM Dirk Frimout, Franck Dewinne, Lucien Halleux, Marianne Merchez, Vladimir Pletser, Werner Stessens
BULGARIA Georgi I. Ivanov, Aleksandr Aleksandrov, Krasmir Stoyanov.
CANADA Marc Garneau, Robert B. Thirsk, Steven G. MacLean, Bjarni V. Tryggvason, Roberta L. Bondar, Kenneth Money, Chris A. Hadfield, Julie Payette, Robert Stewart, Dafydd R. Williams, Micheal J. McKay.
CUBA Arnaldo Mendez, Jose A. Lopez-Falcon.
Czechoslovakia Vladimir remek, Oldrich Palczak.
FRANCE Jean-Loup Chretien, Patrick Baudry, Frederic Patat, Michel Tognini, Jean-Francois Clervoy, Jean-pierre Haignere, Jean-Jacques Favier, Michel Viso, Claudie Andre-deshays, Leopold Eyharts, Jean-Marc gasparini, Philippe Perrin, Benoit Silve.
GREAT-BRITAIN Nigel R. Wood, Anthony Boyle, Richard A. Farrimond, Peter H. Longhurst, Christopher L. Holmes, Helen Sharman, Timothy Mace.
GERMANY Sigmund Jaehn, Eberhard Koellner, Klaus-Dietrich Flade, Reinhold Ewald, Ulf Melbold, Rheinhard Furrer, Ernst W. Messerschmid, Renate Brummer, Hans W. Schlegel, Gerhard Thiele, Heike walpot, Ulrich Walter, Thomas Reiter.
HUNGARY Bertalan Farkas, Bela Magyari.
INDIA Paramaswaren Radhakrishnan, Nagapathi C. Bhat, Rakesh Sharma, Ravish Malhotra.
INDONESIA Pratiwi Sudarmono, Taufik Akbar, Bambang Harimurti, M. Jasuf.
ITALY Franco Malerba, Andrea Lorenzoni, Franco Rossitto, Cristiano Batalli-Cosmovici, Stefano Santonico, Umberto Guidoni, Maurizio Cheli. Luca Urbani
JAPAN Mamoru Mohri, Chiaki Mukai, Takao Doi, Koichi Wakata, Toyohiro Akiyama(*), Ryoko Kikuchi(*)
MEXICO Rudolfo Neri Vela, Ricardo Fabi.
MONGOLIA Judgerdemidyn Gurragcha, Maydarzhavyn Ganzorig.
NETHERLANDS Wubbo J. Ockels, Andre Kuipers
POLAND Miroslaw Hermaszewski, Zenon Jankowski.
ROMANIA Dumitru D. Prunariu, Dumitru Dediu.
SAUDI ARABIA Salman A.A. Al-Saud, Abdulmohsen H. Al-Bassam.
SPAIN Pedro Duque.
SWITSERLAND Claude Nicolier.
UKRAINE Leonid K. Kadenyuk,
VIETNAM Pham Tuan, Bui T. Liem.
(*)= Journalists