Members of the IPS team have performed information technology services for the following entities.
- Albuquerque/Bernalillo County Water Utility Authority, New Mexico
- Awwa Research Foundation
- Clean Water Services, Hillsboro, OR
- Cobb County-Marietta Water Authority, GA
- Columbus Division of Sewerage and Drainage, OH
- Confidential Client
- Detroit Water & Sewerage Department , MI
- Eckerd Youth Alternatives
- Edmonton Power Corporation, Canada
- Encina Wastewater Authority, CA
- Fort Worth Water Department, TX
- Green Bay Metropolitan Sewerage District, WI
- Hampton Roads Sanitation District , VA
- Henderson , NV
- Honolulu, HI (City and County)
- Hopewell Regional Water/Wastewater Treatment Facility, VA
- Howard County Little Patuxent Water Reclamation Plant, MD
- Kodiak Island , AK
- Littleton-Englewood , CO
- Los Angeles Bureau of Sanitation, CA
- Loudoun County Sanitation District , VA
- Massachusetts Water Resources Authority
- Metro Wastewater Reclamation District, Denver, CO
- Metropolitan St. Louis Sewer District, MO
- Metropolitan Water Reclamation District of Greater Chicago, IL
- Milwaukee Metropolitan Sewer District , WI
- Mt. Pleasant, SC
- Orlando Utilities Commission, FL
- Paducah-McCracken Sewer Authority, KY
- Portland Water Bureau, OR
- Salem, OR
- San Jose, CA
- Scottsdale, AZ
- Tacoma, WA
- Thames Water, London, UK
- United Utilities, Manchester, UK
- Washington Suburban Sanitary Commission, MD
- Water and Sewer Authority, Washington, D.C.
- Windsor, Canada
- Wyoming, MI