A-H
- 501 Water Co-operative Ltd.
- 5th Avenue Water Co-op Ltd.
- Alcomdale Local Dev. Co-op Ltd.
- Bay View Water Co-op Ltd.
- Bearspaw Acres Water Co-op Ltd.
- Bearspaw Ridge Water Co-op Ltd.
- Big Hill Creek Estates Waterworks
- Big Sky Water Co-op Ltd.
- Black Spring Ridge Water Co-op Ltd.
- Bowview Estates Water Co-op Ltd.
- Bruderheim Water Co-op Ltd.
- Bullshead Water Co-op Ltd.
- Calling Horse Estates Cooperative Association Ltd.
- Champion East Water Co-op Ltd.
- Champion West Water Co-op Ltd.
- Champion-Little Bow Water Co-op Ltd.
- Charlies' Angels Water Co-op Ltd.
- Conquerville Water Co-op Ltd.
- County of Lethbridge Rural Water Association
- Cypress Rural Water Co-ops Ltd.
- Deer Path Meadows Water Co-op Ltd.
- Deer Ridge Estates Water Co-op Ltd.
- Diamond C Water Co-op Ltd.
- Dry Six Water Co-op Ltd.
- East Cypress Water Co-op Ltd.
- East Grimshaw Rural Water Co-op Ltd.
- East Peace Water Co-op Ltd.
- Emerald Bay Water & Sewer Co-op Ltd.
- End of the Line Water Co-op Ltd.
- F.H.N. Water Association Ltd.
- Fairview Rural Water Project Ltd.
- Georgian Del-Rich Uitility Co-op Ltd.
- Green Ridge Estates Water Co-op Ltd.
- Hawk's Landing Services Co-op Ltd.
- Highpoint Estates Ltd.
- Highway 5 Water Users Co-op Ltd.
- Hilda Water Pipeline Co-op Ltd.
- Hill Spring Meadows Co-op Association Ltd.
- Hilltop Estates Resdents Association
- Hollandale Water Co-op Ltd.
I-P
- Josephburg Water Co-op Ltd.
- Leavings Water Co-op Ltd.
- Leisure Lake Waterworks Co-op Association
- Lethbridge North County Potable Water Co-op
- Little Burnt River Water Co-op Ltd.
- Magrath North East Water Co-op Ltd.
- Magrath Northern Water Co-op Ltd.
- McGregor Water Users Co-op Ltd.
- Milk River East Water Co-op Ltd.
- Milk River West Water Users Co-op
- Milo Water Co-op Ltd.
- Mossleigh Water Works Co-op Ass. Ltd.
- Mountain Vista Water Co-op Ltd.
- Mount Vista Estates Water Co-op Ltd.
- Mountain River Estates Ltd.
- Mountain View Water & Sewer Co-op
- Mountain Woods Water Co-op Ltd
- New Dayton Water Users Ltd.
- Orkney Water Co-op Ltd.
- Parramatta Water Co-op Ltd.
- Pincher Creek Water Co-op Ltd.
- Plainfield Water Users Ltd.
- Poplar View Water Co-operative Ltd.
- Prairie Royale Estates Water Co-op Ltd.
- Prairie Schooner Estates Water Co-op Ltd.
- Priddis Greens Services Co-op Ltd.
- Properties of Eagles Quay Co-op Ltd.
Q-Z
- Ranchers Hill Water Co-op Ltd.
- Ravencrest Homeowners Association
- River Country Water Co-op Ltd.
- Riverbrink Water Users Co-op Ltd.
- Rocky View Water Co-op Ltd.
- Roseridge Water Co-op Ltd.
- Ross Creek Water Co-op Ltd.
- Serenity Estates Water Co-op Ltd.
- Shaftesbury Water Co-op Ltd.
- Silver Willow Water Co-op Ltd.
- Skiff Water Co-op Ltd.
- South Dunmore Water Co-op Ltd.
- South East Alberta Water Co-op Ltd.
- South Lundbreck Water Co-op Ltd.
- Springate Water Co-op Ltd.
- Springshire Water Supply Ltd.
- Springview Water Co-op Ltd.
- Sprucedale Water Co-op Ltd.
- Sylvan Westside Country Water Co-op Ltd.
- T.R. Water Co-op Ltd.
- Twelve Mile Coulee Water Co-op Ltd.
- Twelve Mile Road Water Co-op Ltd.
- U7U Water Co-op Ltd.
- Valley View Acres Utilities Ltd.
- Warner West Water Co-op Ltd.
- West Grimshaw Rural Water Co-op Ltd.
- Westside Water Co-op Ltd.
- Westview Water Supply Ltd.
- Wheatland Water Co-op Ltd.
- White Post Lane Waterworks Co-op
- Whitemud Water Co-op Ltd.
- Windmill Water Co-op Ltd.
- Wintergreen Woods Water Utility Ltd.