| Business | Phone |
| Lincoln Meter Co 2120 S Halsted St, Chicago Heights 60411 | (708) 755-6515 |
| Lite Tech Inc 3149 Glenwood Dyer Rd, Chicago Heights 60411 | (708) 757-3050 |
| Stallings & Co Inc 250 Irving Blvd, Chicago Heights 60411 | (708) 756-1470 |
| Helsel-Jefferson Electrical 103 N Halsted St, Chicago Heights 60411 | (708) 756-5600 |
| Homefree Inc 2023 E Sauk Trl, Chicago Heights 60411 | (708) 757-7708 |
| J & C Security 501 S Halsted St, Chicago Heights 60411 | (708) 756-1643 |
| Kpz Fire Equipment Inc 410 N Arquilla Dr, Chicago Heights 60411 | (708) 473-5725 |
| Mec Systems Intergrations 1024 Lowe Ave, Chicago Heights 60411 | (708) 754-0692 |
| Vi-Dat Technologies 300 Orr Rd, Chicago Heights 60411 | (708) 757-3207 |