| Business | Phone |
| Alarmguard Security Inc 305 S Westgate Dr # A, Greensboro 27407 | (336) 854-3281 |
| Triad Custom Alarm Svc 225 S Lindell Rd, Greensboro 27403 | (336) 855-4867 |
| Carolina Alert Inc 1705 Holbrook St, Greensboro 27403 | (919) 878-8783 |
| Carolina Security & Wiring Po Box 3302, Greensboro 27402 | (336) 286-5900 |
| T & S Fire & Security Inc 3025 Randleman Rd, Greensboro 27406 | (336) 273-0859 |
| Standard Systems Co 4109 Hicone Rd, Greensboro 27405 | (336) 621-1321 |
| Cpi Security Systems 7011 Albert Pick Rd, Greensboro 27409 | (336) 691-0847 |
| Safeguard Security 4004 Spring Garden St # D, Greensboro 27407 | (336) 605-1164 |
| Security Works Inc 3249 Cypress Park Rd, Greensboro 27407 | (336) 294-0530 |
| Aaa Protection Inc 3209 W Market St, Greensboro 27403 | (336) 299-1909 |
| Abf/Sentry Watch Inc 1705 Holbrook St, Greensboro 27403 | (336) 292-6468 |