| Business | Phone |
| Cer Professional Consultants 400 S Miller Ave, Gillette 82716 | (307) 682-1141 |
| Falcon Consulting Svc 445 Sinclair St, Gillette 82718 | (307) 682-2390 |
| M R & E 319 S Gillette Ave, Gillette 82716 | (307) 686-2720 |
| Monitek Llc 101 Fir Ave C, Gillette 82716 | (307) 685-2566 |
| Wester-Wetstein & Assoc 201 W Lakeway Rd 1000, Gillette 82718 | (307) 686-1125 |