Su Watergas sono presenti 356 associazioni internazionali.

ORGALIM

EUROPE'S TECHNOLOGY INDUSTRIES

Boulevard Auguste Reyers 80
Bruxelles (Belgium)

OVERGAS

5 Philip Kutev St.
Sofia (Bulgaria)

PABB / RAWW / RAVV

ASSOCIATION FOR RUSSIAN WATER SUPPLY AND SANITATION

St. Mosfilmovskaya 35, Building 2
119334 Moscow (Russian Federation)

PAWD

PHILIPPINE ASSOCIATION OF WATER DISTRICTS

2/F LWUA Building, Katipunan Road, Balara
Quezon City (Philippines)

PDVSA

PETROLEOS DE VENEZUELA

Avenida Libertador con calle El Empalme
La Campiña, Caracas (Venezuela)