| Business | Phone |
| Crawford Rc Co 3016 Overland St, Round Rock 78681 | (512) 293-3989 |
| Fischer Utility Constr Co Inc 2 Bluff Vw, Round Rock 78664 | (512) 218-0569 |
| Middlebrook Utilities Inc 2251 Double Creek Dr, Round Rock 78664 | (512) 989-9282 |
| Unism Development Co Inc 3778 County Road 123, Round Rock 78664 | (512) 238-8479 |
| Unism Development Co Inc 2025 Inverness Dr, Round Rock 78681 | (512) 255-3726 |
| United Cable Network Inc 1101 N Industrial Blvd C, Round Rock 78681 | (512) 388-3236 |