| Business | Phone |
| A-Tech Computer Svc Inc 296 Williams Pl, Dundee 60118 | (847) 428-9199 |
| Tce 570 Rock Road Dr, Dundee 60118 | (847) 836-8160 |
| P C Administrative Svc 644 S 7th St, Dundee 60118 | (847) 836-8873 |
| Millennium Computer Corp Dundee 60118 | (847) 462-9933 |
| Fox Valley Computer Svc Dundee 60118 | (847) 836-9107 |