| Business | Phone |
| Cyber Defenses Inc Round Rock 78664 | (512) 461-0998 |
| Edge Technologies 231 E Main Ave 230, Round Rock 78664 | (512) 733-0110 |
| Tigera Enterprises Round Rock 78664 | (512) 255-8805 |
| Bluebonnet Communications Round Rock 78664 | (512) 248-8383 |
| Logic Links 8219 Broken Branch Dr, Round Rock 78681 | (512) 244-3300 |