| Business | Phone |
| Digital World 415 E Stone Ave, Addison 60101 | (630) 832-6070 |
| Data Solutions Inc 1115 W Republic Dr, Addison 60101 | (630) 543-1303 |
| Computer Maintenance Inc 1433 W Fullerton Ave M, Addison 60101 | (630) 953-1555 |
| Crowley Computer Consulting Addison 60101 | (630) 244-8189 |