Editura
Match Bucureşti
Máté Ernó Könyvnyomdája
Mathioulakis
Mathpress
Matrix Rom
Mattel
Matthias-Grünewald Verlag
Max Hesse 's Verlag
Max Hueber Verlag
Maxim Cluj
Maxim Bit
Maxima
May János Nyomdai Műintézet R.-T.
Mayer és Berger könyvnyomdája
Mayfield Publishing Company
Mayflower Books Ltd.
Mayon
Mazarine
Mazzarella Brons. Productions Inc.
MB Art Publishing
MBC
MCA Records
McClelland-Bantham, Inc.
McDougal Littell
McGraw Hill Kogakusha
McGraw-Hill
McGraw-Hill Book Company
McGraw-Hill Education
McGraw-Hill Higher Education
McGraw-Hill Publishing Company
McGraw-Hill Ryerson Limited
McGraw-Hill School Division
MCR
MDAdmit
Mecatrin
Med Press Consult
Medeea Timişoara
Media & Policy Center Foundation
Media Biz
Media Business
Media Casa Press
Media Consulta International
Media Consulting People
Media Factory
Media Gamma Publishers
Media Group
Media Image
Media Lumina
Media Management Books
Media Med Publicis
Media Musica
Media Promotion
Media Promovalores
Media Publishing
Media Serges
Media Service Zawada
Media Services
Media Sport Promotion
Media Toys Production
Media Venture Capital