| Business | Phone |
| Expert Electronics Design 1500 Lawnmont Dr 1112, Round Rock 78664 | (512) 246-1942 |
| Radio Shack 2601 S Ih 35 C, Round Rock 78664 | (512) 238-9016 |
| T & S Technology 117 E Main Ave # B, Round Rock 78664 | (512) 244-1279 |
| Trendsetter Electronics 1910 Sam Bass Rd, Round Rock 78681 | (512) 310-8858 |
| Berg Electronics 1806 Hunters Trl, Round Rock 78681 | (512) 244-9702 |
| Circuit City 120 Sundance Pkwy, Round Rock 78681 | (512) 310-9049 |
| Radio Shack 110 N I H 35 220, Round Rock 78681 | (512) 255-6600 |