| Company | Description |
| Employing 6,000 & over |
| Dell | Computer equipment mfg./sales (Hdq.) |
| IBM Corp. | Computer hardware & software mfg./R&D |
| Employing 2,000-5,999 |
| Advanced Micro Devices | Semiconductor chip mfg. |
| Applied Materials | Semiconductor production equipment mfg. |
| AT&T | Telecommunications (Hdq. of TX operations) |
| Freescale Semiconductor | Semiconductor chip design & mfg. (Hdq.) |
| National Instruments | Virtual instrumentation software & hardware mfg. (Hdq.) |
| Solectron Texas | Electronics mfg. |
| Employing 1,000-1,999 |
| 3M Corp. | Electronic connectors & test equipment mfg./R&D |
| Apple Computer | Computer mfg., technical & admin. support center |
| Hospira | Healthcare products mfg. |
| PPD Development | Pharmaceutical, medical device & biotech R&D services |
| Samsung Austin Semiconductor | Semiconductor chip mfg. (Hdq.) |
| Spansion | Memory chip mfg. |
| Time Warner Cable Co. | Media & communications |
| Employing 500-999 |
| Austin Energy | Municipal utility |
| BAE Systems Integrated Defense Solutions | Defense & aerospace equipment mfg. (Hdq.) |
| Broadwing Communications | Telecommunications (Hdq.) |
| Cingular | Telecommunications |
| Dresser Wayne | Gasoline dispenser & control systems mfg. (Hdq.) |
| Emerson Process Management | Process control software & systems R&D (Hdq.) |
| Hewlett-Packard | Marketing & customer support services for computer mfg. |
| Intel | Microchip design center |
| Lower Colorado River Authority | Electric power distribution (Hdq.) |
| Silicon Laboratories | Integrated circuits design/mfg. (Hdq.) |
| Unisys | IT solutions |
| URS Corp. | Engineering |
| Vignette Corp. | E-business/content mgt software dev (Hdq.) |