| Company Name | Street | Suite | City | St | Zip | Phone | Fax | Website |
| Prevent Alarm Company dba Prevent Security and Technology | 12 Weldin Park Dr | Wilmington | DE | 19803 | (302) 478-6647 | (302) 478-0654 | www.prevent-security.com | |
| Security Observation Systems | 2107 Saint James Church Rd | Wilmington | DE | 19808 | (302) 731-9272 | (302) 995-2283 | ||
| Alpha-Sure Technologies LLC | 5909 Old Capitol Trl | Wilmington | DE | 19808 | (302) 992-0900 | (302) 633-9757 | www.alpha-sure.com |