1. Black Hills Security & Investigations
222 S Gillette Ave, Gillette, WY 82716
Coordinate: 44.29244,-105.50481
Phone: (307) 682-7000
2. Black Diamond Investigations
309 W Lakeway Rd, Gillette, WY 82718
Coordinate: 44.26853,-105.50826
Phone: (307) 682-3059