| Business | Phone |
| Aaa Alarm Engineering Ltd Bridgeport 6604 | (203) 366-4229 |
| Adt Security Svc Bridgeport 6604 | (203) 333-7155 |
| Synergy Security Systems Inc 1069 Connecticut Ave # 2, Bridgeport 6607 | (203) 335-7770 |
| Central Communications Inc Bridgeport 6604 | (203) 332-2500 |
| Choice Securities 70 River St, Bridgeport 6604 | (203) 366-1682 |
| Fairfield County Alarm Svc Bridgeport 6606 | (203) 371-4403 |