| Business | Phone |
| Securenet 2600 Mchale Ct 140, Austin 78758 | (512) 835-8800 |
| Dyezz Surveillance 13276 Research Blvd 206, Austin 78750 | (512) 844-2488 |
| Microview 5604 Sw Parkway, Austin 78735 | (512) 899-9206 |
| Detection Dynamics Inc 6606 N Lamar Blvd 300, Austin 78752 | (512) 453-1133 |