American Geological Institute

American Institute of Hydrology

American Society for Photogrammetry and Remote Sensing

American Society of Limnology and Oceanography

American Water Resources Association

Association of Water Technologies, USA

Australian Society for Limnology

Australian Water Association

British Hydrological Society

Canadian Water Resources Association

Ecological Society of America

International Association for Environmental Hydrology

International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC)

International Association of Hydrogeologists

International Association of Hydrological Sciences (IAHS)

International Association of Hydraulic Engineering and Research (IAHR)

International Commission on Water Quality

International Society for Ecological Economics (ISEE)

International Soil Science Society (ISSS)

International Water Association (IWA)

New Zealand Limnological Society

North American Benthological Society

Society of Environmental Toxicology and Chemistry

Society of Wetland Scientists

Water Environment Federation

World Meteorological Foundation