| Business | Phone |
| Sysmex Corp Of America 1 Nelson C White Pkwy, Mundelein 60060 | (847) 996-4500 |
| Secure Medical Products Inc 1000 Allanson Rd, Mundelein 60060 | (847) 970-4600 |
| Pharmaceutical Systems Inc 909 E Orchard St, Mundelein 60060 | (847) 837-0512 |
| Medline Industries Inc 1 Medline Pl, Mundelein 60060 | (847) 949-5500 |