| Business | Phone |
| Dunbar Alarm Systems 7675 Canton Center Dr, Baltimore 21224 | (410) 282-6000 |
| Loomis Fargo & Co 6170 Frankford Ave # A, Baltimore 21206 | (410) 325-8800 |
| Brink's Inc 3610 Commerce Dr # 801, Baltimore 21227 | (410) 536-2050 |
| Dunbar Cash Vault Svc 4983 Mercantile Rd, Baltimore 21236 | (410) 933-9500 |