| Business | Phone |
| Cybex Technologies Corp 1820 N Glenville Dr, Richardson 75081 | (972) 644-4386 |
| Magma Design Automation Inc 2425 N Central Expy, Richardson 75080 | (972) 744-9009 |
| Pegasus Automation Inc 1203 Executive Dr E, Richardson 75081 | (972) 705-9422 |
| Texonics 1613 E Spring Valley Rd, Richardson 75081 | (972) 234-0011 |