American Dental Association
American Marketing Association
American Society for Training and Development
Boy Scouts of America
Calvin College
Canadian Dental Association
Canadian Imperial Bank of Commerce
City of Grand Rapids
DeKalb
Deloitte & Touche
DuPont
Federation of Automobile Dealer Associations
Ford
IBM
Imperial Oil
Great Lakes Trucking Association
Johnson & Johnson
Juvenile Diabetes Research Foundation
KeepRite
Kent County
MassMutual
Michigan Association of Healthcare Advocates
Michigan Association of County Treasurers
National Retail Federation
North American Broadcasters Association
Northern Telecom
Ontario Funeral Service Association
Rotary International
Ryder Truck
Telephone Pioneers of America
United Church of Christ
United Van Lines
United Way of America
University of Phoenix
Wyoming/Kentwood Chamber of Commerce