OVGW - Austrian Association for Gas and Water

German Technical and Scientific Association for Gas and Water

EUREAU is the European federation of national associations of drinking water suppliers and waste water services.

RIWA - Association of River Waterworks

Water Technology Center. Establishment of the DVGW

ICPDR - International Commission for the Protection
of the Danube River

IAWR - International Association of Waterworks in the Rhine catchment area

Vienna Waterworks