Associação Brasileira de Biogas e Metano (ABBM) Brasil
Association des Agriculteurs Méthaniseurs de France (AAMF)
Anaerobic Digestion and Bioresources Association (ADBA) United Kingdom
American Biogas Council (USA)
Asociación Española de Biogás (AEBIG)
atee Club Biogaz (France)
Brancheforeningen for Biogas (Denmark)
Consorzio Italiano Biogas e Gassificazione (CIB) Italy
European Biogas Association (EBA)
Fachverband Biogas e.V. (Germany)
Fördergesellschaft für nachhaltige Biogas- und Bioenergienutzung e.V. (Germany)
Indian Biogas Association (IBA) India
Southern African Biogas Industry Association (SABIA) South Africa