text: * American Institute of Hydrology (AIH)
  *Geological Society of America (GSA) – Hydrogeology Division
  * American Geophysical Union (AGU) – Hydrology Section
  * National Ground Water Association (NGWA)
  * American Water Resources Association
  * Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI)
  * International Association of Hydrological Sciences (IAHS)
  * Statistics in Hydrology Working Group (subgroup of IAHS)
  * German Hydrological Society (DHG: Deutsche Hydrologische Gesellschaft)
  * Italian Hydrological Society (SII-IHS) – [http://www.sii-ihs.it Società Idrologica Italiana]
  * Nordic Association for Hydrology
  * British Hydrological Society
  * Russian Geographical Society (Moscow Center) – Hydrology Commission
  * International Association for Environmental Hydrology
  * International Association of Hydrogeologists
  * [http://soham.org.np/ Society of Hydrologists and Meteorologists – Nepal]