C
- Central European News
- Central Media
- CEO Magazine
- Cervidés Média Inc.
- CFO Enterprises (South Africa)
- CGB Publishing
- CH Regionamedien AG
- CHAMPiON Communications (Ethiopian Business Review)
- Chardon Communications GmbH
- Charlton Media (Cancelled)
- Charter Eye Ltd.
- Chelsea Magazine Company (UK)
- Chelyabinski Rabochi
- Chicago Reader
- Chicago Sun-Times Media, Inc
- Chicago Tribune
- Chill Media
- China Daily
- China Elite Focus Magazines LLC
- China International Book Trading Corporation (CIBTC)
- China Monitors
- China Press Bhd
- Chinese Newspapers
- CHMP Media
- Chris Smith Publications
- Christian Science Monitor
- CI test
- Cine21
- CINER MEDIA GROUP
- Citrus Media
- City AM
- City Info Africa
- City Publishing
- Cityseeker
- CJ Publishing
- CL Media Pte Ltd.
- Clarissa Burt Media Group LLC
- Class Act Media Co Ltd.
- Claur Creative LLC
- ClickOnlline
- Clothilde Andoni Editions
- CMC Group of Companies
- CMOs magazine
- CNBC
- CNews (Groupe Bollore)
- CNHI Publications
- Coachhouse Aktiebolag (Sweden)
- Coast Mountain Publishing & Media
- Codi Asoc
- Colin Squire Publishing