| Business | Phone |
| Elliott Electric Supply Inc 145 Texas Ave, Round Rock 78664 | (512) 246-2898 |
| Summit Electric Supply Round Rock 78664 | (512) 246-9888 |
| Bluespan Inc 2306 Masonwood Way, Round Rock 78681 | (512) 244-2866 |
| Mile Hi T Fire Equipment Inc 1100 N Industrial Blvd B, Round Rock 78681 | (512) 244-0099 |