Water Supply and Sewerage Association of Albania
Österreichischer Wasser- und Abfallwirtschaftsverband
VLARIO consulting platform, Genk
Bulgarian Water Association
Swiss Water Association
Czech Water Association
German Association for Water, Wastewater and Waste
Danish Water Forum
Asociación para la defensa de la calidad de las aguas
Water Association Finland
ASTEE Association Scientifique et Technique pour l’Eau et l’Environnement
Hungarian Wastewater Association
Croatian Water Pollution Control Society
Association Luxembourgeoise des Services d'Eau
Association for Treatment of Water and Wastewater in North Macedonia
Stichting RIONED
Norwegian Water Association
Associação Portuguesa de Engenharia Sanitária e Ambiental
Slovenian Water Pollution Control Association
ARA - Romanian Water Assocation
ACE SR Association of Wastewater Treatment Experts of the Slovak Republic
Serbian Water Pollution Control Society
