| Business | Phone |
| Keeran Computers 3763 Rod Carew Dr, Round Rock 78664 | (512) 689-3140 |
| Microelectronics/Computer Tech 1704 Chamois Knls, Round Rock 78664 | (512) 833-5321 |
| Compaq Computer 1921 Savannah Dr, Round Rock 78681 | (512) 218-1999 |
| Philips Pc Peripherals 1 Chisholm Trl, Round Rock 78681 | (512) 388-7222 |