Politics and Business magazines
- Chromcraft Revington, Inc.
- Chronimed Inc.
- Chrysalis Group plc
- CHS Inc.
- Chubb, PLC
- Chugach Alaska Corporation
- Chugai Pharmaceutical Co., Ltd.
- Chunghwa Picture Tubes, Ltd.
- Chupa Chups S.A.
- Church's Chicken
- Churchill Downs Incorporated
- Cia Hering
- Cianbro Corporation
- Ciber, Inc.
- CIENA Corporation
- Cifra, S.A. de C.V.
- Cimarex Energy Co.
- Cimentos de Portugal SGPS S.A. (Cimpor)
- Ciments Français
- Cinar Corporation