| Business | Phone |
| Alarm Security & Communication 956 Townsend Ave, New Haven 6512 | (203) 466-7000 |
| Temple Medical Ctr 40 Temple St, New Haven 6510 | (203) 776-3539 |
| Blackhawk Security Svc 205 Whitney Ave # 317, New Haven 6511 | (203) 776-2257 |
| Stony Creek Security Llc 132 Temple St, New Haven 6510 | (203) 773-4900 |
| Cognisa Security Inc 107 Court St, New Haven 6511 | (203) 562-6132 |
| Operational Protective Svc 343 Alden Ave # 9, New Haven 6515 | (203) 389-8584 |