| Business | Phone |
| Automated Circuit Design 1226 Exchange Dr, Richardson 75081 | (972) 664-0900 |
| Csd Inc 1302 Exchange Dr 150, Richardson 75081 | (972) 437-6455 |
| Impact Circuit Designs 1870 Firman Dr 100, Richardson 75081 | (972) 238-5669 |
| Intermark 100 N Central Expy 514, Richardson 75080 | (972) 994-9306 |
| Trilogy Circuits Inc 990 N Bowser Rd 740, Richardson 75081 | (972) 907-2727 |
| Design Solutions Inc 1701 N Greenville Ave, Richardson 75081 | (972) 480-0900 |