Politics and Business magazines
- C. Itoh & Company, Ltd.
- C.F. Martin & Co., Inc.
- C.H. Boehringer Sohn
- C.H. Guenther & Son, Inc.
- C.H. Robinson Worldwide, Inc.
- C.I. Traders Limited
- C.R. Meyer and Sons Company
- Cabletron Systems, Inc.
- Cablevision Electronic Instruments, Inc.
- Cache Incorporated
- Cactus S.A.
- Cadmus Communications Corporation
- Cadwalader, Wickersham & Taft
- CAE USA Inc.
- Caere Corporation
- Caesars World, Inc.
- Caffè Nero Group PLC
- Cagle’s, Inc.
- Caisse des Dépôts et Consignations
- Cal-Maine Foods, Inc.