| Mexican Association of Independent Filmmakers | — | 1993 | 1 |
| MICHAEL - Střední škola, Gymnázium a Vyšší odborná škola | प्राग | 10 सितंबर 1997 | 1 |
| Midway Games | शिकागो | 1988 | 1 |
| Mike Adriano Media | — | — | 1 |
| Miko Lee Productions | — | — | 1 |
| Mikrofilm | ओस्लो | 16 अक्टूबर 1996 | 1 |
| Milk Pictures | — | — | 1 |
| Mill Film | — | — | 1 |
| Millar/Gough Ink | इरवाइन | 1995 | 1 |
| Millennium Film Oy | — | — | 1 |
| Ministry of Culture | The New Capital | 1958 | 1 |
| Ministry of National Defense of South Korea | सियोल | 17 जुलाई 1948 | 1 |
| Minnow Mountain | ऑस्टिन | — | 1 |
| Miracle Pictures | सांता मोनिका | — | 1 |
| Mitteldeutsches Filmkontor | लाइपत्सिग | — | 1 |
| Miyagi Television Broadcasting | मियागी प्रीफेक्चर | 17 जनवरी 1970 | 1 |
| Miyu Productions | — | मई 2009 | 1 |
| Mjölk Production | — | — | 1 |
| MNP Entreprise | — | 2000 | 1 |
| Mobra Films | बुख़ारेस्ट | — | 1 |
| Modern Studios | स्टॉकहोम | — | 1 |
| Mofac Studio | — | — | 1 |
| Moiré Films | — | — | 1 |
| Momentum Pictures | — | 1996 | 1 |
| Monarch Media (United States) | सांता क्रूज़ | — | 1 |
| Monkey Pack Films | बौळयूँ-बिल्लांकोर्ट | — | 1 |
| Monogatari srl | मिलानो | — | 1 |
| Monolith Films | वारसॉ | 11 जनवरी 2002 | 1 |
| Monsoon Films | ढाका | 2010 | 1 |
| Monsta Studios | मलेशिया | 15 सितंबर 2009 | 1 |
| Monster Media | ओस्लो | 2001 | 1 |
| Mook Animation | सुगिनामी -कू | 1986 | 1 |
| Moonbow Pictures | — | 19 नवंबर 2018 | 1 |
| Moskus film | — | 2009 | 1 |
| Motion Pictures, S.A. | लंदन | 1968 | 1 |
| Motovun Film Festival | — | 1999 | 1 |
| Mount Street Film | — | — | 1 |
| Movie Masters | — | — | 1 |
| MoviePlus | — | 2005 | 1 |
| Movieweb | — | — | 1 |
| Moviola Film och Television AB | — | — | 1 |
| MPhilms | ब्रातिस्लावा | 16 अक्टूबर 2010 | 1 |
| Multifilmes | Mairiporã | 1952 | 1 |
| Murmur | — | — | 1 |
| Mutante Filmes | — | — | 1 |
| My Deer Films | — | — | 1 |
| Myriapod Productions | — | — | 1 |
| Méditerranée Cinéma Productions | — | — | 1 |