VIVA -Antananarivo (Madagascar)

  Voiles Sans Frontières -Lorient (Morbihan/Bretagne)(France)

  WTA -Vientiane (Lao)

  Water1st -Seattle (Usa)

  WaterAid -Antananarivo (Antananarivo I/Analamanga)(Madagascar)

  Watershed Empowering Citizens Consortium -Amsterdam (Netherlands)

  WE Consult, Water Supply and Mapping -Maputo (Mozambique)

  Winrock International -Little Rock (Usa) [siège]

  WEP -Abuja (Nigeria)

  WFP -Freetown (Western Area Urban District/Western Area)(Sierra Leone)

  ISRIC -Wageningen (Netherlands)

  XIMB -Odisha (India)

  Yasagu -Bamako (Bamako/Bamako)(Mali)