WHH -Bonn (Allemagne) [siège]

  WHH -Ouagadougou (Kadiogo/Centre)(Burkina Faso)

  WHH -Bujumbura (Burundi)

  WHH -Pétion-Ville (Port-au-Prince/Ouest)(Haïti)

  WHH -Beirut (Beyrouth/Beyrouth)(Liban)

  WHH -Monrovia (Liberia)

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

  WHH -Farafangana (Farafangana/Atsimo-Atsinanana)(Madagascar)

  WHH -Fort-Dauphin (Tôlanaro/Anosy)(Madagascar)

  WHH -Toliara (Toliara/Atsimo-Andrefana)(Madagascar)

  WHH -Vangaindrano (Vangaindrano/Atsimo-Atsinanana)(Madagascar)

  WHH -Bamako (Bamako/Bamako)(Mali)

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