AAA Chicago Motor Club
ABC Radio/TV
3Com
A.C. Nielsen
A.T. Kearney Inc. Worldwide
Abbott Laboratories
Aetna Insurance Company
ALLTEL Corporation
Altera
American General
Accenture
Andersen
Argonne National Laboratories
Baird & Warner
Bank of America
Blue Cross / Blue Shield of Illinois
BP Amoco
Caremark
Chicago Bears Sky Box
Chicago Cubs Sky Box
Chicago Stock Exchange
Chicago Symphony Orchestra
Citadel Investment Group LLC
CNA Insurance Companies
Cook County Juvenile Center
Dentsply
Diamond Technologies
Discover Card
Evanston Northwestern Hospital
First Variable Life
Frankel & Company
Giant Step Productions
Harris Trust & Savings Bank
Intel
John Buck Company, Inc.
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John Hancock Center
John Marshall Law School
Jones Lang LaSalle
Kingsway America
KPMG
Lord Bissel & Brook
Markborough Building
Marketing Store Worldwide
Matson Intermodal
Mayer, Brown & Platt
McDermott, Will and Emery
McDonald's Corporation
McDougall Littel
McWhorter's Technologies
Merrill Lynch
Microsoft Corporation
Midwest Generation
Moore North America
Morningstar, Inc.
Natural Microsystems
Nextel
Northwestern Memorial Hospital
Northwestern University
O'Hare International Airport
Office of the Medical Examiner
St. Mary of Nazareth Hospital
The Pampered Chef
Union Tank Car Company
United Parcel Service
Viacom
Westinghouse Vocational
High School
Winston Strawn
Wm. Wrigley Jr. Company
WMX Technologies
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