ABN AMRO North America
ADP
AgTech
ASIC Designs
Abbott Labs
Accenture
Ambassador Business Solutions Ameritech
BP
Bank of America
Bank of Montreal
Baxter International
Bergstrom
Boncosky Services, Inc.
Borg-Warner Automotive
Brafasco
Business Logic Corporation
Castle Bank
Caterpillar, Inc.
CE Printed Materials
Central DuPage Hospital
Charles Schwabb
Chicago Bridge & Iron Co.
Chicago R.E.A.C.H.
Chicago Transit Authority
Clarcor
Coldwell Banker Primus
College of DuPage
Composites One
Cornerstone Medical Group
DeKalb Clinic Chartered
Deloitte
Delnor Hospital
Demar Financial Planning Services
Devco Corporation
Discover Financial
Donaldson, Lufkin, & Jerrette
Duff & Phelps Credit
DuPage Urology Associates
DuPage Surgical Consultants
Dryer Medical Clinic
ESCO Electronic Corp.
Elmer Larson, LLC
Elmhurst Hospital
FTD, Inc.
Fabriq Molded Plastics
Financial Network Inc.
Fitch
Folette Corporation
Forsythe Technologies
Foxboro Company
GE Capital
GLS Corporation
Gleeson, Sklar, Sawyers & Cumpata
Grant Thornton, LLP
Greenbrier & Russel, Inc.
Harris Bank and Trust Company
Heintszche Fertilizer Company
Hewitt Associates
Household Financial Insurance
Ibbotson Associates
Ideal Industries Inc.
Ingersoll Rand
Illinois Academy of Family Physicians
Illinois Department of Human Services
Illinois Sheriff's Association
IIlinois Tollway Authority
International Group of Accounting Firms
International Truck & Engine Corp.

Invensys Energy Solutions
JCAHO
Jackson National Financial Services
Johnson Controls
Kar Products
Key Corp. Leasing
Kishwaukee Health Systems
Kraft Foods
L.A. Darling
LaSalle National Bank
Liberty Mutual
MTL Insurance
Maxrad, Inc.
McCabe Realtors
McDonald's Corporation
McMaster-Carr Supply Co.
Mental Health Assoc. of Rock River Valley
Mercer Investment Consulting
Michael J. Liccar & Co.
Midstate Corp. Fed. Credit Union
Midwest Heart Specialists
Motorola
National Bank & Trust Co. of Sycamore
NEC
Newell Rubbermaid
Nicor Gas
Oak Brook Investments
Oak Consulting Inc.
Old Kent Leasing
Partylite
P.J. Kane & Co.
PetroChina
PetroJet (Cairo, Egypt)
Pierce Biotechnology Inc.
Pillsbury-Green Giant
Prudential Securities
River Valley Healthcare
Rockwell International
Rogers Engineering Corp.
Ryerson
Sanwa Business Credit Corp.
Scudder Kemper Investments
Sears Roebuck
Sherwin-Williams Company
Siebe Environmental Controls
Spiegle
Stkgen Energy Corp.
SUL Community Health Training Center
TAP Pharmaceutical Products Inc.
Tellabs
The Northern Trust Co.
Tomoegawa
Trustmark Insurance Co.
U.S. Securities & Exchange Commission
United Healthcare of Illinois
Urology Associates of DuPage
VanCampen Funds
Vanguard Financial Services Corp.
Village of Forest Park
W.A. Whitney Company
Walgreens
Waste Management, Inc.
Whitehall Robbins
Women's OB/GYN Associates
Woods Equipment
Woodward Governor Company
W. W. Grainger Inc.
Zurich Scudder Investments