| Business | Phone |
| Mueller & Group Inc 509 E State Pkwy C, Schaumburg 60173 | (847) 882-4333 |
| Kofco Usa Inc 2500 W Higgins Rd, Schaumburg 60195 | (847) 781-1430 |
| Kilsby-Roberts Co 1900 Mitchell Blvd, Schaumburg 60193 | (847) 891-9400 |
| Salzgitter International Inc 2300 Barrington Rd, Schaumburg 60194 | (847) 843-3800 |