| Business | Phone |
| Watchdog Security 13200 Pond Springs Rd, Austin 78729 | (512) 219-0910 |
| United Central Control 13750 San Pedro Ave, Austin 78701 | (512) 472-8919 |
| Secure Commercial 15106 W Highway 71, Austin 78738 | (512) 263-4911 |
| Sms 80 Red River St, Austin 78701 | (512) 474-4804 |
| Protection One Inc 11525 Stonehollow Dr 155, Austin 78758 | (512) 302-4117 |
| Marshall Alarms 213 S Lamar Blvd, Austin 78704 | (512) 480-8129 |
| Absolute Systems 7206 Winecup Holw, Austin 78750 | (512) 346-0348 |
| Alamo-Austin Alarms 1707 S Lamar Blvd, Austin 78704 | (512) 302-5300 |
| Detection Inc 6706 Burnet Ln, Austin 78757 | (512) 454-3073 |
| John W Imbert & Assoc 5450 Bee Caves Rd 111, Austin 78746 | (512) 327-8154 |
| Crenshaw Alarm & Signal Corp 7604 Shadyrock Dr, Austin 78731 | (512) 231-1666 |
| Hsp Commercial & Residence 200 A Nw Dr, Austin 78750 | (512) 331-2123 |
| Chubb Security Systems Inc 11500 Metric Blvd 310, Austin 78758 | (512) 977-5100 |
| Master Burglar Alarm Co 10501 N Ih 35, Austin 78753 | (512) 452-8589 |
| All Safe Security Inc 9401 Burnet Rd, Austin 78758 | (512) 990-9000 |
| Adt 8222 Bent Tree Rd, Austin 78759 | (512) 279-0900 |
| Adt Security Svc 11500 Metric Blvd, Austin 78758 | (512) 823-0122 |
| Adt Security Svc 1817 W Braker Ln F400, Austin 78758 | (512) 832-0122 |
| Alarm Security Group 11500 Metric Blvd 410, Austin 78758 | (512) 302-3552 |
| Marshall Alarms 111 W Anderson Ln, Austin 78752 | (512) 300-2727 |
| Security Specialists 3012 Ammunition Dr, Austin 78748 | (512) 282-1624 |
| Asi Protection Svc 5555 N Lamar Blvd C113, Austin 78751 | (512) 467-2615 |
| Austin Central Monitoring Inc 15106 W Highway 71, Austin 78738 | (512) 263-5911 |
| Security Services Of Austin Po Box 152644, Austin 78715 | (512) 416-1863 |