- Shoshone National Forest
- Black Hills National Forest
- Custer Gallatin National Forest
- Medicine Bow-Routt National Forest
- Caribou-Targhee National forest
- Bureau of Reclamation
- Montana Bureau of Land Management
- North Dakota Bureau of Land Management
- South Dakota Bureau of Land Management
- Idaho Bureau of Land Management
- US Army Corps of Engineers
- National Park Service
- Montana Department of Transportation
- Wyoming Federal Highway Administration
- FireSafe
- Fish, Wildlife, and Parks
- Federal Emergency Management Agency (FEMA)
- Stahly Engineering, Inc.
- Morrison-Maierle
- Merjent, Inc.
- Great West Engineering, Inc.
- Electrical Consultants, Inc.
- Assorted Montana County Electrical Coops
- Delaney and Company
- ATC & Associates
- Terra Alta, Inc.
- Terracon, Inc.
- Tetra Tech, Inc.
- Tower Engineering, Inc.
- Trileaf, Inc.
