Chicago Park District
Illinois Bureau of Tourism
Chicago Convention and Tourism Bureau
The City of Chicago's Official Tourism

Abbott Laboratories
Aileen S. Andrew Foundation
Alliance Bernstein
Allstate Insurance Company
Alpha Baking Company
American Family Mutual Insurance Company
AMSTED Industries Foundation
Aon Corporation
Association of Zoos & Aquariums
AV Techsource, Inc.
Bank of America Foundation
Bank of America, N.A.
Baxter International Inc.
Blackman Kallick
Boeing Charitable Trust Equity
CBS Radio WBBM Newsradio 780AM
Charter One Foundation
Chicago Wilderness
CNA Foundation
Code Hennessy & Simmons LLC
ComEd, an Exelon Company
Deere and Co.
Discover Financial Services
E. & J. Gallo Winery
Earth Share of Illinois
Eaton Vance Corp.
Ernst & Young, LLP
FM Global Foundation
Friends of the Zoo
GE Foundation
Goldman Sachs & Co.
Green Apple Music & Arts Festival LLC
Harris Bank Foundation
Hill Mechanical Group
HSBC—North America
Illinois Soybean Association
Illinois Tool Works Foundation
J&J Snack Foods Corporation
Jacksonville Zoological Society
Joe & Ross
Johnson Controls Foundation
JPMorgan Chase
Kelso - Burnett Co.
Kemper Educational and Charitable Fund
Kirkland & Ellis Foundation
Kraft Foods, Inc.
Leo Burnett Company, Inc.
Lifeway Foods Inc.
McCormick Foundation
Merchandise Mart Properties, Inc.
Merrill Lynch & Co. Foundation, Inc.
Mesirow Financial
Midwest Generation, An Edison International Company
Mobil Foundation
Morgan Stanley & Co.
Naked Juice
Navy Pier IMAX
Niketown Chicago
Northern Trust Company
Nuveen Investments, LLC
Old Republic International Corporation
Peak Performance
Peoples Gas and North Shore Gas
Pepsico Foundation
Polk Bros. Foundation
RBS Greenwich Capital Foundation, Inc.
Robert Bosch Tool Corporation
Ryder System Charitable Foundation, Inc.
S & C Foundation
Sahara Enterprises Inc.
Samuel Adams Boston Lager
Sears Holdings Corporation
Shure Incorporated
Sony Ericsson Mobile Communications Inc.
St. Joseph Hospital
The Bon Ton Stores Foundation
The Brickman Group, Ltd.
The Pepper Companies, Inc.
The Prudential Foundation
Time Warner, Inc.
Trader Joes
U.S. Cellular Corporation
United Airlines
Vienna Beef
W. W. Grainger, Inc.
Wachovia Foundation
Washington Mutual
Waters Corporation
WellPoint, Inc.
Whole Foods
William Blair & Company, LLC
William J. Wrigley Jr. Company
Winston & Strawn, LLP