| Business | Phone |
| Rock Solid Systems Austin 78728 | (512) 218-0749 |
| Security Co 13218 Pond Springs Rd A, Austin 78729 | (512) 335-5569 |
| Triprotech Systems Inc 15908 Ruel Cv, Austin 78717 | (512) 671-3716 |
| Exin Llc 1914 Howard Ln, Austin 78728 | (512) 252-3844 |
| Jay Blanchard Security Svc 5555 N State 106, Austin 78701 | (512) 845-3878 |
| American Protective Svc Inc 4029 S Capital Of Texas Hwy, Austin 78704 | (512) 448-4181 |
| Crown Training Academy Austin 78728 | (512) 989-7940 |
| Magnum Investigations Security Austin 78728 | (512) 989-7920 |
| Tristar Commercial Llc Austin 78728 | (512) 733-0944 |
| Whelan Security Co 13011 W Highway 71, Austin 78738 | (512) 263-4263 |
| U S Security 2410 E Riverside Dr, Austin 78741 | (512) 447-2200 |
| A Watchful Eye Inc 22 Hull Circle Dr, Austin 78746 | (512) 329-9903 |
| Special Protection Security 500 Canyon Rdg, Austin 78753 | (512) 339-0540 |
| Adi 1901 W Braker Ln 100, Austin 78758 | (512) 832-5440 |
| Priebe Security Svc 11615 Angus Rd 220, Austin 78759 | (512) 340-0690 |