| Business | Phone |
| Han's System Inc 87 W 61st St, Westmont 60559 | (630) 434-1250 |
| P C King 416 E Ogden Ave D, Westmont 60559 | (630) 789-3899 |
| Priority Computer Svc 700 E Ogden Ave 306, Westmont 60559 | (630) 455-9394 |
| Service Express 806 Burr Oak Dr, Westmont 60559 | (630) 920-8668 |
| Tss/Ibm 1010 Executive Dr, Westmont 60559 | (630) 395-1300 |