Internasjonale organisasjoner med nasjonale representanter

 EurAqua

International Association of Hydrogeologists

International Association of Hydrological Sciences

International Association of Theoretical and Applied Limnology

International Water Association/NORDIWA

Nordic Association for Hydrology

Nordiske VA-foreninger/EUREAU

Northern Research Basins 

UNESCO – International Hydrological Programme (IHP)

 World Meteorological Organization

Andre internasjonale institusjoner

       International Water History Association (IWHA)

          Stockholm International Water Institute (SIWI) 

Forvaltnings- og forskningsinstitusjoner

        Centre for Ecology and Hydrology (CEH), (Wallingford)

          Danmarks Tekniske Universitet

Finnish Environment Institute (FEI)

Grønlands og Danmarks Geologiske Undersøgelse (GEUS)

Icelandic Met Office

National Environmental Research Institute (NERI) (DK) 

Swedish Meteorological and Hydrological Institute (SMHI)

 Organisasjoner, foreninger o.l.

       International Association of Hydrogeologists (IAH)

          International Association of Hydrological Sciences (IAHS)

 Prosjekter o.l.

      Arctic-HYDRA

         Northern European FRIEND