1. Digitek Computer Products 1131 W Bryn Mawr Ave, Itasca, IL 60143 Coordinate: 41.97616,-88.02856 Phone: (630) 250-7300
2. Tandem Computers Inc 1 Pierce Pl, Itasca, IL 60143 Coordinate: 41.9887,-88.01662 Phone: (630) 285-4400