| Business | Phone |
| Spirit Communications 3879 N Perryville Rd, Rockford 61114 | (815) 227-5034 |
| Communications Development Co 2141 N Central Ave, Rockford 61101 | (815) 965-8525 |
| Connoisseur Communications 3875 Brendenwood Rd, Rockford 61107 | (815) 394-1440 |
| Power Communications 4787 Hydraulic Rd, Rockford 61109 | (815) 874-6900 |
| Global Signal Inc 4749 Perryville Rd, Rockford 61112 | (815) 874-2092 |
| Motorola Rockford 61109 | (815) 874-6650 |