| Business | Phone |
| Alarm Strategies Inc 290 Booth Hill Rd, Trumbull 6611 | (203) 375-4694 |
| Safetynet Alarms Svc Inc Trumbull 6611 | (203) 380-0860 |
| National Alarm Pro 2450 Reservoir Ave, Trumbull 6611 | (203) 396-8610 |
| Giannettino Electric 654 Edison Rd, Trumbull 6611 | (203) 371-0008 |
| Guardian Systems Inc Trumbull 6611 | (203) 261-3033 |