Austrian Association for Gas and Water – OVGW
Austria
Austrian Water and Waste Management Association – OWAV
Austria
Belgian Federation for the Water Sector
Belgium
Union of Water Supply and Sewerage Operators in the Republic of Bulgaria – UWSSORB
Bulgaria
Croatian Water and Waste Water Association – GVIK
Croatia
Cyprus Association of Water and Sewerage Boards
Cyprus
Water Supply and Sewerage Association of the Czech Republic
Czech Republic
Danish Water and Waste Water Association
Denmark
Estonian Water Works Association
Estonia
Finnish Water Utilities Association
Finland
Fédération les Entreprises de l’Eau
France
German Association of Energy and Water Industries
Germany
German Technical and Scientific Association for Gas and Water
Germany
Hellenic Union of Municipal Enterprises for Water Supply and Sewage
Greece
Hungarian Water Utility Association – MaVíz
Hungary
Samorka
Iceland
The County and City Management Association
Ireland
Uisce Éireann
Ireland
Italian federation of energy, water and environmental services – Utilitalia
Italy
Latvian Water and Wastewater Works Association
Latvia
Vandens Jėga
Lithuania
Luxembourg Association of Water Services
Luxembourg
Water Services Corporation – WSC
Malta
Association of Dutch Water Companies – Vewin
Netherlands
Unie van Waterschappen / Dutch Water Authorities
Netherlands
Norsk Vann
Norway
Polish Waterworks Chamber of Commerce
Poland
APDA — Portuguese Association of Water and Wastewater Services
Portugal
Romanian Water Association
Romania
Chamber of Commerce and Industry of Serbia – CCIS
Serbia
Association of Water Companies
Slovakia
Chamber of Public Utilities of Slovenia
Slovenia
Asociación Española de Entidades Gestoras de Abastecimiento y Saneamiento (DAQUAS)
Spain
Svenskt Vatten
Sweden
SVGW – Swiss Association for Water, Gas and District Heating
Switzerland
VSA
Switzerland
Ukrvodokanalecology
Ukraine
Water UK
United Kingdom