| Business | Phone |
| Alarm Monitoring Center 300 N Main St, Greer 29650 | (864) 968-0000 |
| Ihc Security Svc 4 Sunbelt Business Park Dr, Greer 29650 | (864) 877-2399 |
| Monitoringacqui 142 W Phillips Rd, Greer 29650 | (864) 989-0677 |
| Set/Stewart Electronics 100 Memorial Dr, Greer 29650 | (864) 848-5190 |