- Aetna (1999)
- Aetna (1994)
- Alcon Laboratories
- Alliance Data
- AMERICAN Cast Iron Pipe Company
- Applied Materials
- Baylor College of Medicine
- Boise School District
- BP America
- Caterpillar
- Center for AIDS Intervention Research (CAIR)
- Champion International Corp. (1994)
- Champion International Corp. (1996)
- Chevron
- CIGNA
- Citibank (1998)
- Citibank (2001)
- DaimlerChrysler Corp.
- Dell, Inc
- DENSO
- Dow Chemical Company (1994)
- Dow Chemical Company (2008)
- DTE Energy
- Eastman Chemical
- Energy Corporation of America
- Ericsson Inc.
- Fairview Health Services
- Fannie Mae
- FedEx
- Glaxo Wellcome
- Hawaii Medical Service Association
- Health Management Corporation
- Health Net
- Healthtrac Inc.
- Honeywell
- IBM
- Idaho National Laboratory
- Johnson & Johnson Services, Inc.
- L.L. Bean, Inc. (1994)
- L.L. Bean, Inc. (2009)
- L.L. Bean, Inc. (2012)
- Lilly’s Corporate Health Services
- Lincoln Industries
- Lockheed Martin Idaho Tech.
- Marriott
- McKesson
- Medical Mutual of Ohio
- Motorola
- Nationwide Mutual Insurance Company
- No Winner Selected (2017)
- No Winner Selected (2018)
- No Winner Selected
- Northeast Utilities
- O'Neal Industries
- Pacific Bell (1995)
- Pacific Bell (1997)
- Park Nicollet Medical Foundation
- Pepsi Bottling Group
- Pfizer Inc. (1999)
- Pfizer Inc. (2010)
- Pitney Bowes (1996)
- Pitney Bowes (1998)
- Prudential Financial
- Quaker Oats Company
- Quest Diagnostics
- San Jose Fire Department
- Sentara
- SHIELDS
- State of Nebraska
- Steelcase
- Sunset Park Family Health Center Network
- Texas Instruments
- The Volvo Group
- Trigon Blue Cross Blue Shield and Subsidiary Health Management Corp.
- UAW-GM
- Union Pacific Railroad (1994)
- Union Pacific Railroad (1997)
- Union Pacific Railroad (2001)
- Union Pacific Railroad (2005)
- University of Alabama at Birmingham- School of Education
- University of Michigan
- University of Vermont
- UNUM (1995)
- UNUM (1999)
- USAA
- Vanderbilt University
- WE Energies Health Enhancement Initiative
- Wisconsin Education Association (WEA) Insurance Trust