Associació Catalana d'Amics de les Orquídies, Spain

 
Associazione Italiana di Orchidologia (AIO)

Associazione Lombarda Amatori Orchidee (ALAO), Varese, Italy

 
Associazione Triveneta Amatori Orchidee (ATAO), Firenze, Italy

 
Austrian Orchid Society, Vienna, Austria

Club Amigos de las Orquídeas, Madrid, Spain

 
Ceská Orchidejárská Spolecnost (Czech Orchid Society) - COS - Prague, Czech Republic

 
Dansk Orchide Klub (Danish Orchid Club)

 
Deutsche Orchideen-Gesellschaft e.V.

Drustvo Ljubiteljev Orhidej Slovenije (DLOS) - Slovenian Orchid Society - Slovenia

Epiphytic Plant Research and Information Center in the Netherlands

 
Flora Cretica, Crete, Greece

 
Groupement Midi-Pyrénées des Amateurs d'Orchidées, France

 
Grupo Orquideófilo Canarias, Canary Islands, Spain

 
Irish Orchid Society, Glasnevin, Dublin, Ireland

 
Les Orchidophiles  réunis de Belgique, Belgium

 
De Nederlandse Orchideeën Vereniging /The Dutch Orchid Society, The Netherlands

Werkgroep Masdevallia

 
Norsk Orkideforening - Norwegian Orchid Society

Orchid Society Noord Brabant West - The Netherlands

Orchideen-Gesellschaft Kurpfalz (Orchid Society Palatinate), Mannheim, Germany

 
Orchideeën Vereniging Vlaanderen / Flemisch Orchid Society - Belgium

 
Orchidées 59 club de Valenciennes, France

 
Orquidiòfils Valencians, Valencia, Spain

Saint-Petersburg Orchid Society, Saint-Petersburg, Russian Federation

 
Svenska Orchide Sällskapet/Swedish Orchid Society, Sweden

 
Swiss Orchid Society, Sweden

 
Sydsvenska Orkidésällskapet/South Swedish Orchid Society, Sweden

 
Vereinigung deutscher Orchideenfreunde V.D.O.F. e.V., Göttingen, Germany

Werkgroep Europese Orchideeen/Society for European Orchids, The Netherlands