- Aurora Water
- Colorado Department of Public Health & Environment
- Colorado School of Mines
- Colorado Springs Utilities
- Denver Water
- City of Westminster, CO
- Carollo Engineers
- CDM
- Kennedy/Jenks Consultants
- Plum Creek Wastewater Authority
- Richard P. Arber Associates, Inc.
- Stratus Consulting, Inc.
- Tetra Tech, Inc.
- Trussell Technologies, Inc.
