Corporate Clients (USA)
- Alyeska Pipeline Service Co.
- Aspen Ski Company
- ATC Engineering Consultants (ECI)
- BGC Engineering, Vancouver
- Bowen Construction (Atlanta)
- CH2M Hill
- Chen-Northern
- Chihuahua LLC
- Crested Butte Mountain Resort
- Dames and Moore
- Delta Geotechnical Consultants
- D.J. Nyman & Associates
- Earth Scientific Consultants
- Faegre & Benson, Attorneys (Denver)
- Geomatrix Consultants
- Golder Associates
- Los Alamos National Laboratory
- M.W. West and Associates
- Manitou Institute
- Melby Ranches (Colorado)
- Noranda Exploration
- Northwind Environmental
- Pioneer Environmental Services
- Powderhorn Resort
- Professional Services Industries (PSI)
- RJH Consultants, Inc.
- Safety-Kleen Corp.
- Seattle Water Department
- SE Group
- Smith Geotechnical
- Stone and Webster Engineeering
- TRW Environmental Safety Systems
- Vail Resorts
- Vigil Enterprises, Inc.
- Walsh and Associates
- Western Geo-Logic (Salt Lake City)
- Wm. Lettis and Associates
- Woodward-Clyde Consultants
- Woodward-Clyde Federal Services
- WorleyParsons Canada, Ltd.
