Politics and Business magazines
- Diadora SpA
- Diagnostic Products Corporation
- Dial-A-Mattress Operating Corporation
- Dialogic Corporation
- Diamond Cluster International, Inc.
- Diamond of California
- Diamond Shamrock, Inc.
- Dibrell Brothers, Incorporated
- Dick Clark Productions, Inc.
- Dick Corporation
- Dick's Sporting Goods, Inc.
- Dickten Masch Plastics LLC
- Dictaphone Healthcare Solutions
- Diedrich Coffee, Inc.
- Diehl Stiftung & Co. KG
- Dierbergs Markets Inc
- Diesel SpA
- Digex, Inc.
- Digi International Inc.
- Digital River, Inc.