| Company Name | City | License |
|---|---|---|
| Helena Plans Exchange | Helena | |
| KLJ | Great Falls | |
| Northfork Builders | Bozeman | |
| Petra, Inc. | Meridian | |
| Northern Engineering & Consulting | Billings | |
| Wildhorse RV Resort | Big Arm | |
| Northern Rockies Engineering, Inc. | Sheridan | |
| IMPACT Drafting & Design, inc. | Bozeman | |
| SMA Architects | Helena | |
| Yellowstone National Park Lodges | Mammoth | |
| CTA Architects Engineers, Billings | Billings | |
| Pigman Builders | Hamilton |