| Mosaïque | France | 10 |
| Mosquito | France | 116 |
| Moto Raleuses | France | 1 |
| Mots en Flots | France | 24 |
| Mots et Cie | France | 7 |
| Mots et cris | France | 38 |
| Mots et Légendes | | 31 |
| Motus | France | 67 |
| Mouck | France | 7 |
| Mouck | | 14 |
| Moudarren | France | 1 |
| Mouladurioù hor yezh | | 2 |
| Moulinsart | France | 24 |
| Moult Editions | Canada | 2 |
| Moundarren | | 3 |
| Mount Street Press | | 2 |
| Mountain Brook Ink | Etats-Unis | 2 |
| Mourad Maurice | | 1 |
| Mouton de Gruyter | France | 3 |
| Mouvement du Nid | France | 2 |
| Movie Planet | France | 1 |
| Moyen-Courrier | | 1 |
| Moyer Bell Books | | 5 |
| Mozaika | Etats-Unis | 96 |
| MP Publishing Limited | France | 1 |
| MQUP - McGill-Queen's University Press | | 1 |
| Mr Tan & Co | France | 7 |
| MSM | France | 4 |
| Mti | France | 3 |
| MTV Books | France | 10 |
| Mü | France | 73 |
| Much-In-Little | Angleterre | 1 |
| Muertito press | France | 2 |
| Muffins | France | 10 |
| Mulholland books | | 27 |
| Muller | | 2 |
| MultiMondes | Canada | 29 |
| Multiplayer.it | | 4 |
| Multisonor | France | 2 |
| Multivers | | 46 |
| Mundania Press | Etats-Unis | 1 |
| Murder Inc. | France | 7 |
| Murder She Writes Press | France | 5 |
| Murdoch Books | | 5 |
| Murmure des soirs | | 15 |
| Musaicum books | | 10 |
| Musée d'art moderne de Saint-Etienne | | 1 |
| Musée d'état d'Auschwitz Birkenau | France | 4 |
| Musée d'Orsay | France | 7 |
| Musée de Bretagne | | 3 |
| Musée de design et d'arts appliqués contemporains | | 1 |
| Musée de Dijon | | 1 |
| Musée de l'Homme | | 1 |
| Musée Départemental Arles Antique | France | 3 |
| Musée des Beaux-Arts et Musée historique et archéologique de l'Orléanais | | 1 |
| Musée en Piconrue | Belgique | 1 |
| Musée national Auschwitz-Birkenau | | 2 |
| Musée national de la Marine | France | 1 |
| Musées de la ville de Strasbourg | France | 4 |
| Musées de Marseille | France | 1 |
| MuseItUp Publishing | Etats-Unis | 2 |
| Muséum national d'Histoire naturelle | France | 5 |
| Museum of Modern Art | France | 4 |
| Music And Entertainment Books | France | 21 |
| Music Sales | | 1 |
| Musidora | France | 1 |
| MuslimLife | France | 12 |
| Musnier Gilbert | | 1 |
| Mustang | | 3 |
| Muswell Press | Angleterre | 1 |
| Mutine | France | 9 |
| Muttpop | | 2 |
| MVO | | 16 |
| MX Publishing | Angleterre | 6 |
| MxM Bookmark | France | 2435 |
| My Major Company Books | France | 3 |
| Myc Art | | 1 |
| Mycroft's Brother | France | 4 |
| MyLit Publishing | | 4 |
| Myoho | France | 3 |
| Myria | France | 7 |
| Myriad | | 11 |
| Myriapode | France | 6 |
| MysteranduM | | 5 |
| Mystery | France | 2 |
| Mythic Delirium | | 2 |
| Mythic Island Press | | 1 |
| Mythologica | | 10 |
| Mythopoeia | | 4 |
| N&B | France | 2 |
| n'co éditions | France | 5 |
| N.Boubée & Cie | France | 1 |
| Naban | France | 75 |
| Nabu Press | | 14 |
| Nada | | 43 |
| Nagel | France | 6 |
| Nagel & Kimche | Allemagne | 1 |
| Nahdet Misr Publishing | Egypte | 7 |
| Naïve | France | 113 |
| NAL | Etats-Unis | 35 |
