M
- M&M Meat Shop
- M&M MEDIA SAS
- M. Shanken Communications
- M3 Editorial
- Maariv
- Maciel Hnos SA
- MADGROUP+ Sp. z o.o
- Madsack Market Solutions GmbH
- Maeil Business Newspaper
- Mafilo (Turkey)
- MAFRA Slovakia, a.s.
- MAFRA, a.s.
- Magazines Integrated Pte Ltd
- Magic Media Solutions
- Magna Publishing
- Magyar Nemzet
- Mahamedha
- Mahavideh Foundation
- Mahnameh Bozorgrah Rayaneh
- Mahnameh Tanz va Carton Khat Khati
- Mail and Guardian
- Main Street Media of Tennessee
- Mainichi Shimbun
- Mainland Press
- Maisie und Wolfgang Darr GmbH
- MajerMedia
- Makam Music Company
- Makkaani Magazine (Saudi Arabia)
- Makkah Newspapers
- Malayala Manorama
- Manan Gupta
- Manavgat'in Sesi
- Manchester Evening News
- Mango Life Media LLC
- Manhattan Comunicaciones
- Manila Bulletin Publishing Corp
- Mann Jitt
- MANPRES DISTRIBUTION SRL
- Mansueto Ventures
- MANZ Verlag
- Manzel
- Mar de Plata Film Festival
- Marble Trend
- Marianne Magazine
- Marketing & Media International Group Inc.
- Marketingdirecto.com
- Markisches Medienhaus
- Markology
- Markus Schöberl
- Marmiton SAS Comptabilite