International Association of Geodesy  

The International Association of Geodesy (IAG) is a scientific organization in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is an active member of the International Association of Geodesy and Geophysics (IUGG) which itself is a member of the International Council for Science (ICSU).

The International GNSS Service (IGS) 

The International GPS Service (IGS) is a voluntary federation of more than 200 worldwide agencies that pool resources and permanent GPS station data to generate precise GPS products.

United Nations Office for Outer Space Affairs

The United Nations Office for Outer Space Affairs (UNOOSA) is the United Nations office responsible for promoting international cooperation in the peaceful uses of outer space. The Office serves as the secretariat for the General Assembly's only committee dealing exclusively with international cooperation in the peaceful uses of outer space