| Business | Phone |
| Avtex Inc 2041 Grand Ave D, West Des Moines 50265 | (515) 221-3230 |
| Mtc Systems 1454 30th St 105, West Des Moines 50266 | (515) 225-8484 |
| Black Box Network Svc 6800 Lake Dr 204, West Des Moines 50266 | (515) 698-5000 |
| North American Communications 1443 17th St, West Des Moines 50265 | (515) 327-1182 |