The conference was attended by representatives from 8 countries: Belgium (Aero Club Royal de Belgique, founded 1901), France (Aéro-Club de France, 1898), Germany (Deutscher Aero Club e.V.), Great Britain (Royal Aero Club, 1901), Italy (Aero Club d'Italia, 1904), Spain (Real Aero Club de España, 1905), Switzerland (Aero-Club der Schweiz, 1900) and the United States (Aero Club of America, 1905).
La conferință au participat reprezentanți din opt țări: Belgia (Aero Club Royal de Belgique, fondat în 1901), Franța (Aéro-Club de France, 1898), Germania (Deutscher Aero Club e.V.), Marea Britanie (Royal Aero Club, 1901), Italia (Aero Club d'Italia, 1904), Spania (Real Aero Club de España, 1905), Elveția (Aero-Club der Schweiz, 1900) și Statele Unite ale Americii (Aero Club of America, 1905).