To fellow associations within IUGG
- The International Association of Cryospheric Sciences (IACS)
- The International Association of Geodesy (IAG)
- The International Association of Geomagnetism and Aeronomy (IAGA)
- The International Association of Hydrological Sciences (IAHS)
- The International Association for the Physical Sciences of the Oceans (IAPSO)
- The International Association of Seismology and Physics of the Earth’s Interior (IASPEI)
- The International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI)