| Business | Phone |
| Computer Guys Llc 118 Lincolnway, Valparaiso 46383 | (219) 548-8012 |
| Direct Data Corp 1704 Calumet Ave, Valparaiso 46383 | (219) 476-9220 |
| Doering Computer 354 Rickenbacker Ct, Valparaiso 46385 | (219) 759-0066 |
| E & S Computer Consultants 3809 Calumet Ave, Valparaiso 46383 | (219) 531-9696 |
| Revtech Computer Svc & Sales 100 Lincolnway # 203, Valparaiso 46383 | (219) 531-1392 |
| Rom Computer Svc Inc 297 E 500 N, Valparaiso 46383 | (219) 465-0301 |