The European Atomic Energy Community

European Telecommunications Satellite Organisation, created in 1977 established by European postal and telecommunications administrations as an intergovernmental organisation to operate Europe’s first regional satellite system (ECS) on behalf of its member states

Groupe d'etudes europeen pour la collaboration dans le domaine des recherches spatiales, established at a meeting in Paris in 1960, forerunner of COPERS

Historical Archives of the European Community/Union, hosted at the European University Institute in Florence

International Astronautical Federation, space advocacy body founded in 1951

The International Space Station Intergovernmental Agreement, often referred to as 'the IGA'. An international treaty signed on 29 January 1998 by the fourteen governments involved in the Space Station project (the US, Canada, Japan, the Russian Federation, and the then 10 Member States of ESA). It established 'a long term international co-operative framework on the basis of genuine partnership, for the detailed design, development, operation, and utilisation of a permanently inhabited civil Space Station for peaceful purposes, in accordance with international law'.

The Indian Space Research Organisation, the national space agency of India, headquartered in Bangalore. Created in 1969, when it superseded the Indian National Committee for Space Research (INCOSPAR), set up by the Government of India in 1962.

Nationaal Lucht- en Ruimtevaart Laboratorium, Dutch National Aerospace Laboratory

United Nations Committee on the Peaceful Uses of Outer Space, founded in 1959

The Union of Soviet Socialist Republics, a federal union of fifteen national republics spanning much of Eurasia, established in 1922. It was dissolved in 1991 and the Commonwealth of Independent States (CIS) was established in its place with nine member states.