| Business | Phone |
| Valor Security Svc Inc 200 Cobb Pkwy N 128, Marietta 30062 | (770) 218-6000 |
| Tech One Security Systems 2296 Piedmont Ridge Ct, Marietta 30062 | (770) 579-7074 |
| Direct Security & Satellite 3765 Upland Dr, Marietta 30066 | (770) 578-4900 |
| Dsi Security Svc 2131 Kingston Ct Se, Marietta 30067 | (770) 226-0541 |
| Statewide Custom Security 909 Cobb Pkwy N, Marietta 30062 | (770) 717-5240 |
| Security Control Systems 422 Greenfield Ct, Marietta 30068 | (770) 973-5916 |
| Silent Knights Security Inc 2161 New Market Pkwy Se, Marietta 30067 | (770) 951-0475 |
| River's Call Security 3400 Rivers Call Bl Se, Marietta 30067 | (770) 980-9010 |
| Us Security 1850 Parkway Pl Se, Marietta 30067 | (404) 841-8966 |
| Quest Security 2916 Neese Dr Sw, Marietta 30060 | (678) 556-1644 |
| Milton Protective Svc 1000 Johnson Ferry Rd B230, Marietta 30068 | (770) 578-1212 |
| Loomis Fargo 1710 Cumberland Point Dr Se, Marietta 30067 | (770) 953-0660 |
| Alert Security Svc 2265 Roswell Rd, Marietta 30062 | (770) 509-2235 |
| Arko Executive Svc Inc 1850 Parkway Pl Se 710, Marietta 30067 | (770) 955-7275 |