141 Worldwide
3rd Coast
Abbott
AbbVie
Abelson Taylor Advanswers
Adfero
ADM
Alberto Culver
Albertsons
Alltrista
AMA
American Dental Association
American Dietetic Association
Ameritech
AON Hewitt
APAC TeleServices
Arcelor Mittal
Archipelago
Arthur Andersen
Asian Sources Media Group
AT&T Wireless Services
ATA
Avery Dennison
Bain & Company
Barilla America
BASF
Baxter
BBDO
BBDS Advertising
Beam Global
Bel Brands
Blistex
Blue Chip Marketing
BNY Mellon
Boehringer Mannheim
Braintree
Briggs
Britannica.com
BRK Brands
Budget Rent a Car
Build-A-Bear Workshop
Burrell, LLC
Burson-Marsteller
Capital One
Capstone
Case Corporation
Caterpillar
CCH
Centocor, Inc.
CF Industries
Chandler Group
Chicago Magazine
Chicago Title Insurance
Chicago Urban League
Ciba-Corning Diagnostics
Cimco
CKPR
CME
Cognito
ComEd
ConAgra Foods
CoolSavings.com
Corbett Health Connect
Cornerstone Marketing
Cosmetic Laboratories of America
Cramer-Krasselt
CSpire
D’Ancona & Pflaum
Darden
DDB Chicago
Dean & Deluca
Dell Computer Corporation
DiGennaro Communications
Direct TV
Discover
Discovery Clothing
DISH
DMI
Dome Communications
Donnellon Public Relations
Dow Brands
Draft Worldwide
Dynascan
Dyson
Echo Corporation
Edelman Worldwide
Egg Strategy
EMI
Encyclopedia Britannica
Energizer
Enesco
Entertainment Cruises
Epsilon
ESW Partners
Ethicon Endo-Surgery
Exelon
Fallon
Ferrara Candy
FHP
FiComm Partners
Finn Partners
Flair Communications
Foley & Lardner
FoodMinds
Foote, Cone & Belding
Frank Lynn & Associates
Frankel & Company
Freeborn & Peters
Gardner Geary Coll
GCI Group
General Growth Properties
Gibbs-rbb
GlaxoSmithKline
Goldring Market Research
GolinHarris
Goodby, Silverstein & Partners
Greenhouse Partners
Grohe America
Grubb & Ellis
GrubHub
GTech
Guaranteed Rate
HAVI
Helene Curtis
Heller International
HerffJones
Hershey’s
Hewitt Associates
Hiebing Group
Hill and Knowlton
Horizon Organics
Hormel
Hospira
HSBC
Hunt Wesson
IFMA
Ignition Network
IMC Global
Ingersoll Rand
Insidedge
Insight
Integrative Therapeutics
International Paper
International Voyager Media
J. Brown & Associates
Jarrard Phillips Cate & Hancock
JM Glass
Jo Chicago
Jones Lang LaSalle
JSH&A
Juhl
Katten, Muchin & Zavis
KB Home
Kellogg School–NWU
Kellogg’s
Kemper Funds
KemperLesnik
Ketchum Public Relations
Key Bank
Kimberly-Clark
Kohl’s
Kohler
KONE
Kraft
Kroger
Landers-Larson
Landor Associates
Lands’ End
LaSalle Bank
Lawson
Leaf
Leo Burnett
Lois/EJL
Lunch
Lutron
M&P Food Communications
Manning, Selvage & Lee
Manpower
Marc/Chicago
Market Source
Marlo Marketing/Communications
Mars
McCain Foods
McDonald’s
Mead Johnson Nutrition
Medical College of Wisconsin
Medline Industries
MEMC
Mercer
Michigan State University
Microsoft
MindShare
Modem Media
Momentum
Moore USA
Morton Salt
Motorola
MTV Networks
Mullen
National Cattlemen’s Beef Assn
Nature’s Way
NEC
Neighbor Agency
Neoglyphics
New Era
NMMA
Noble and Associates
Northern Trust Company
NutraSweet
NXT Capital
O’Malley Hansen
Ogilvy & Mather
Ogilvy PR Worldwide
O-I
OMD
One Click Ventures
Orbitz
OSL
Otis Spunkmeyer
Ounce of Prevention
Pabst
Padilla
Pampered Chef
Pansophic Systems
Parade of Shoes
Paterno Imports
Payless ShoeSource
Pepsi Americas
PetSmart
Pharmavite
Phusion Projects
Pioneer Financial Services
Pitney Bowes Software
PLS
Porter/Novelli
Privateer Holdings
Progress Energy
Pro-Line International
Prudential Securities
Publicis
Quaker Oats
Rand McNally
Redbox
Reputation Partners
Ringling Brothers Circus
Robinson & Maites
Rogen, Inc.
Ross Products
Ruder Finn Public Relations
Ryan Partnership
S.C. Johnson
Saffer USA
Sara Lee Corporation
Sargento Cheese Sears
Security Capital Group
Selective Search
ShopTalk
Sidley Austin
Signature Group
Southeastern Grocers
Spiegel, Inc.
Starbucks
Stouffer Foods Corporation
Tate & Lyle
Tenneco
Tiger Electronics
Transwestern Group
TreeHouse Foods
Tribune Company
TRU
TRW
Ulta
Unilever
Unisys
United Airlines
USG
Vegetarian Times Magazine
Vlasic Foods
Vosges Haut Chocolat
W.B. Doner, Inc.
W2O
Walker Sands
Weaver Popcorn
Weber Shandwick
Weiser Group
Welch’s
Whirlpool
WhiteWave Foods
Wieden & Kennedy
Wilks Communications Group
William Blair
Wolverine Worldwide
World Kitchen
World Triathlon Corporation
Wrigley
Wunderman Cato Johnson
Young & Rubicam
Yum! Brands
Zipatoni