| Company Name | City | License |
|---|---|---|
| CTA Architects Engineers, Billings | Billings | |
| Northern Engineering & Consulting | Billings | |
| Design 3 Engineering | Billings | |
| Redleaf Engineering | Big Sky | |
| Wildhorse RV Resort | Big Arm | |
| Advanced Pump & Equipment, Inc. | Belgrade | |
| Premier Building Systems | Belgrade | |
| Williams Plumbing and Heating | Belgrade | |
| CT Lighting & Controls | Belgrade | |
| Holistic Landscaping of Montana, LLC | Arlee | |
| Coldwater Drilling & Pumps | Arlee | |
| Gray West Construction | Anaheim | |
| Emerine Contracting | Anaconda | |
| 64 Mile Distillery | Anaconda | |
| Black Oak Landscaping | Alberton | |
| Hales Construction & Logging LLC | Alberton | |
| Triangle Fencing | Alberton | |
| Crews Construction LLC | Alberton | |
| Reed Mountain Construction Inc | Alberton |