| Business | Phone |
| Honeywell Zellweger Analytics 405 Barclay Blvd, Lincolnshire 60069 | (847) 955-8200 |
| Armstrong Medical Industries 575 Knightsbridge Pkwy, Lincolnshire 60069 | (847) 913-0101 |
| Atsi Holdings Inc 25 Tristate International 200, Lincolnshire 60069 | (847) 383-7900 |
| Bio-Imaging Research Inc 425 Barclay Blvd, Lincolnshire 60069 | (847) 634-6425 |