| Business | Phone |
| Baystate Security & Patrol Quincy 2169 | (617) 471-2103 |
| South Shore Security Systems 18 Federal Ave, Quincy 2169 | (617) 472-2236 |
| Securitas Security Svc Usa Inc 1431 Hancock St # 2, Quincy 2169 | (617) 328-7769 |
| Reliable Security 42 Saint Anns Rd, Quincy 2170 | (617) 774-1411 |
| North American Security Inc 147 Beach St, Quincy 2170 | (617) 770-0233 |
| Masscorp Security Inc 4 Maple St, Quincy 2169 | (617) 000-1111 |
| Mc Evoy Security Co 392 Hancock St, Quincy 2171 | (617) 770-2379 |