| Business | Phone |
| Abcor Fasteners Inc 1243 Rand Rd, Des Plaines 60016 | (847) 297-3130 |
| Ability Screw Products Inc 7130 Lyndon Ave, Des Plaines 60018 | (847) 827-9260 |
| Dennis J Duel & Assoc 910 Beau Dr 109, Des Plaines 60016 | (847) 427-9977 |
| Compass International 2050 S Mount Prospect Rd B, Des Plaines 60018 | (847) 296-9420 |