| Business | Phone |
| Red Wing Technologies Inc 1732 Ashland Ave, Evanston 60201 | (847) 475-8010 |
| Home Tech Computer Solutions Evanston 60201 | (847) 475-7788 |
| Pc Solutions 1304 Chicago Ave, Evanston 60201 | (847) 266-1800 |
| Universal Data Link Corp 1840 Oak Ave, Evanston 60201 | (312) 622-0974 |