| Business | Phone |
| Bmc Secure 2841 Barnhart St, Denver 80229 | (720) 314-4077 |
| First Choice Security 12301 Grant St # 120, Denver 80241 | (303) 457-3904 |
| Lock and Tech USA 1550 Larimer Street, Denver 80202 | (303) 531-1687 |
| ADT Security Services - Denver 8055 E Tufts Avenue, Denver 80237 | (720) 466-7117 |