The IWSFG has three member categories:
- Voting Members (national water services associations)
- Non-Voting Water Services Associates (state/regional water service associations and individual water services or utilities)
- Non-Voting Other Associates (other associations and entities that do not represent water services)
To join the IWSFG as a Voting Member, please email firstname.lastname@example.org and complete the MOU. To join the IWSFG in one of the Associate categories, please email email@example.com. The Articles of the IWSFG set out the governance of the Group.
Voting Members of the IWSFG:
Non-Voting Water Services Associates:
- California Association of Sanitation Agencies, U.S.
- City of Sanford, Florida, U.S.
- City of London, Ontario, Canada
- City of Vancouver, Washington, U.S.
- Plainfield Area Regional Sewerage Authority, New Jersey, U.S.
- Town of Cobourg, Ontario, Canada
Other Non-Voting Associates:
- Swim Drink Fish Canada
- Fatih Karadagli, Sakarya University, Turkey
- Verdant Water, U.S.