American Airlines
Ameritech
Art Institute of Chicago
Autotech
Avtec Industries
Borg Instruments
Caterpillar
Clear Communications
DePaul University
Diamond Systems
Dian Corporation
Gandalf Technologies
Hitachi America
Intermatic, Inc
Jensen Sound Laboratories
Liquid Carbonic
Patten Industries
National Broadcasting Network
SBE, Inc
SC Johnson Wax
Rexroth/Indramat div of Mannesman
Roosevelt University
Ryerson Steel and Aluminum
Telesphere International