| Business | Phone |
| Computer Services 760 Pasquinelli Dr, Westmont 60559 | (630) 920-8543 |
| Hera Consulting 801 N Cass Ave, Westmont 60559 | (630) 455-4294 |
| Megatrans Logistics Inc 138 N Adams St, Westmont 60559 | (630) 963-2770 |
| Micro Center Inc 80 E Ogden Ave, Westmont 60559 | (630) 371-5500 |
| Micro Center-Commercial 80 E Ogden Ave, Westmont 60559 | (630) 371-5531 |
| Micro Center-Products & Prcng 80 E Ogden Ave, Westmont 60559 | (630) 371-5530 |
| Micro Center-Svc Dept 80 E Ogden Ave, Westmont 60559 | (630) 371-5510 |
| Mogo Computer Software 414 Plaza Dr 200, Westmont 60559 | (630) 323-2478 |
| Mongo Computer Software 801 N Cass Ave, Westmont 60559 | (630) 323-6058 |
| Narya Software Inc 832 Heath Ln, Westmont 60559 | (630) 322-9665 |
| Seiler Instruments & Mfg 230 Quail Ridge Dr, Westmont 60559 | (630) 321-0039 |
| Silvon Software Inc 900 Oakmont Ln 400, Westmont 60559 | (630) 655-3313 |
| Valor Systems 999 Oakmont Plaza Dr, Westmont 60559 | (630) 323-1911 |