| Mélibée | France | 37 |
| Melis | France | 9 |
| Melki Rish | | 1 |
| MeltingBook | | 1 |
| Melville | France | 20 |
| Melville House | Etats-Unis | 2 |
| Même pas mal | France | 46 |
| MeMo | France | 221 |
| MeMograMes | Belgique | 1 |
| Mémoire d'encrier | France | 155 |
| Mémoire du livre | France | 1 |
| Mémoires d'Océans | | 1 |
| Mémoires de plume | | 2 |
| Mémoires du Monde | France | 3 |
| Mémoires Millénaires | | 5 |
| Memor | France | 17 |
| Memory Press | Belgique | 31 |
| Men over the rainbow | | 45 |
| Menaibuc | | 1 |
| Ménard et Desenne | France | 2 |
| Mengès | France | 15 |
| Menor | | 1 |
| Mens Sana | | 1 |
| MEO | | 22 |
| Mera | France | 34 |
| Merci Alfred | | 1 |
| Merci les livres | | 26 |
| Mercia du Lac | Suisse | 1 |
| Mercier Press | France | 8 |
| Mercure dauphinois | France | 4 |
| Mercure de France | France | 586 |
| Méréal | France | 11 |
| Merluche | France | 3 |
| Mermod | France | 11 |
| Méroé | | 2 |
| Merz & Solitude | France | 1 |
| Mes Moires | | 3 |
| MesMots | France | 1 |
| Messagers des Etoiles | | 1 |
| Messidor | France | 7 |
| Messidor / Sociales | | 15 |
| Mesures | France | 9 |
| Métagraphes | | 2 |
| Métailié | France | 791 |
| Métailié / Seuil | France | 9 |
| Métal | France | 3 |
| Metal Blonde Books | Etats-Unis | 11 |
| Metatext | France | 1 |
| Météores | Belgique | 5 |
| Methuen | Angleterre | 33 |
| Métis Presses | Suisse | 6 |
| Metro Beach | France | 1 |
| Métro Éditions Internationales | France | 4 |
| Métropolis | Suisse | 18 |
| Metropolitan Museum of Art | | 2 |
| Meulenhoffeducatief | Pays-Bas | 1 |
| Meunier Bernadette | France | 6 |
| Mézigue | France | 1 |
| MF | France | 7 |
| Mfg Creations | | 3 |
| MGD | France | 2 |
| Mialet Barrault | France | 40 |
| Mic mac | France | 77 |
| Michael Joseph | Angleterre | 77 |
| Michael O'Mara Books | France | 42 |
| Michael Slomczynski | | 1 |
| Michael Walmer | | 1 |
| Michael Wiese Productions | France | 4 |
| Michalon | France | 127 |
| Michel Aveline | France | 2 |
| Michel Brûlé | Canada | 32 |
| Michel de L'ormeraie | France | 4 |
| Michel de Maule | France | 15 |
| Michel Deligne | France | 11 |
| Michel Houdiard | | 5 |
| Michel Lafon | France | 3025 |
| Michel Lafon / Carrere | | 3 |
| Michel Lafon / Casterman | | 8 |
| Michel Lafon / Jungle ! | | 7 |
| Michel Lafon / Paul Ferel | France | 2 |
| Michel Langevin | | 7 |
| Michel Levy | France | 2 |
| Michel Quintin | Canada | 255 |
| Michel Vincent | France | 10 |
| Michèle | France | 3 |
| Michelin | France | 45 |
| Michi | France | 6 |
| Micro Application | France | 3 |
| Micro Magazine Publishing | Japon | 1 |
| Microcosm Publishing | Etats-Unis | 2 |
| Microsoft Press | Etats-Unis | 4 |
| Midgard | France | 25 |
| Midi Trente | | 20 |
| Midi-Pyrénéennes | France | 2 |
| Midnight classics | France | 2 |
| Midnight Ink | France | 7 |
| Midnight Tide Publishing | | 13 |
| Miette | France | 2 |
| Miguel Sánchez | | 4 |
| Mijade | France | 415 |
