| Business | Phone |
| A & K Technologies 901 E Wood St, Decatur 62521 | (217) 429-0821 |
| Contemporary Data Equipment 140 E William St, Decatur 62523 | (217) 429-0050 |
| Data Port Technology Inc 227 S Water St, Decatur 62523 | (217) 423-9948 |
| My Pc Technician 64 Dellwood Dr, Decatur 62521 | (217) 428-8204 |
| Systems Plus 3285 E Faries Pkwy, Decatur 62526 | (217) 425-9055 |
| Tampasis Computer Systems 1920 N Oakland Ave A, Decatur 62526 | (217) 422-0898 |