Vohitra Environnement -Antananarivo (Madagascar)

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

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

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

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

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

  WWF -Antananarivo (Madagascar)