- International Union of Geodesy and Geophysics (IUGG)
- International Association of Geodesy (IAG)
- International Astronomical Union (IAU)
- Global Geodetic Observing System (GGOS)
- World Data System (WDS)
- International Committee on Global Navigation Satellite Systems (ICG)
- Consultative Committee for Time and Frequency (CCTF)
See also
