- ACE USA
- Aetna Inc.
- Alcoa Inc.
- Allianz/Fireman's Fund
- American Forest & Paper Association
- American Psychiatric Association
- AOL LLC
- AT&T Inc.
- BAE Systems plc
- BMW
- Caterpillar Inc.
- United Continental Holdings - Continental & United Airlines
- CropLife America
- CSX Corporation
- Curtiss-Wright Corporation
- Daimler
- DuPont
- EADS North America, Inc.
- Eastman Kodak Company
- Enterprise Holdings
- General Motors
- Georgia-Pacific Corporation
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- Harris Corporation
- Health Net, Inc.
- Helicopter Association International
- Hitachi Ltd.
- Humana, Inc.
- IBM Corporation
- Kaiser Foundation Health Plan
- Liberty Mutual Insurance Company
- Lockheed Martin Corporation
- Marriott
- National Association of Broadcasters
- National Mining Association
- NSK Corporation
- Regional Airline Association
- Siemens AG
- Sprint Nextel Corporation
- UnitedHealth Group
- United Technologies Corporation
- WellPoint
- WMATA
- Yamaha Electronics Corporation, USA
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