| Business | Phone |
| Business Computer Ctr 1538 Central Ave, Dubuque 52001 | (563) 582-0622 |
| Ces Computers Inc 120 Bryant St, Dubuque 52003 | (563) 588-9020 |
| Computer Doctors Inc 1763 Central Ave, Dubuque 52001 | (563) 582-9331 |
| Matt Lorenz Computer Svc Dubuque 52001 | (563) 557-1238 |
| P C Techneer Dubuque 52001 | (563) 590-2984 |