| Business | Phone |
| Anthony's Security Inc 236 Geneva Ave, Dorchester 2121 | (617) 822-8093 |
| Arco Security 14 Virginia St, Dorchester 2125 | (617) 282-3300 |
| Chavito's Sound & Security 100 Gibson St, Dorchester 2122 | (617) 929-1711 |
| R R Security Svc 5 Ridgewood St, Dorchester 2122 | (617) 282-5558 |