| Business | Phone |
| Business Council Regional Ofc 201 W Lakeway Rd 1004, Gillette 82718 | (307) 685-0283 |
| Division Of Criminal Invest 1901 Energy Ct, Gillette 82718 | (307) 682-1796 |
| Mine Inspections & Safety 1901 Energy Ct, Gillette 82718 | (307) 685-6579 |
| Workers' Safety & Compensation 1901 Energy Ct 265, Gillette 82718 | (307) 686-0818 |