Brazil
INPE Instituto Nacional de Pesquisas Espaciais

Canada
CSA Canadian Space Agency / Agence Spatiale Canadienne

Denmark
DSRI Danish Space Research Institute

France
CNES Centre National d’Etudes Spatiales

Germany
DLR Deutschen Zentrum für Luft-und Raumfahrt

Italy
ASI Agenzia Spaziale Italiana

Japan
NASDA National Space Development Agency of Japan

Netherlands
NIVR Netherlands Agency for Aerospace Programmes

Norway
NSC Norsk Romsenter

Russia
RAKA Rosaviakosmos

Spain
CDTI Centro para el Desarrollo Tecnológico Industrial

Sweden
SNSB Swedish National Space Board (Rymdstyrelsen)

Switzerland
ISSI International Space Science Institute

United Kingdom
BNSC British National Space Centre

United States of America
NASA - National Aeronautics and Space Administration