Politics and Business magazines
- The Cooper Companies, Inc.
- The Copley Press, Inc.
- The Copps Corporation
- The Corcoran Group, Inc.
- The Corporate Executive Board Company
- The Cosmetic Center, Inc.
- The Dai-Ichi Kangyo Bank Ltd.
- The Davey Tree Expert Company
- The David and Lucile Packard Foundation
- The Detroit Edison Company
- The Detroit Lions, Inc.
- The Detroit Pistons Basketball Company
- The Doctors’ Company
- The Drees Company, Inc.
- The Dreyfus Corporation
- The Earthgrains Company
- The Eastern Company
- The Echo Design Group, Inc.
- The Economist Group Ltd.
- The Edrington Group Ltd.