| MadLove Film Factory | — | — | 1 |
| Maeda Corporation | Tokyo | 1919 | 1 |
| MAG Yapım | Provinsi Uşak | 2023 | 1 |
| Magellan Films | Kota Brussel | — | 1 |
| Magic | — | — | 1 |
| Magnéto Presse | Boulogne-Billancourt | 24 Juli 2008 | 1 |
| Mahakarya Pictures | Tebet Timur | 2009 | 1 |
| Mainz University of Applied Sciences | — | 1971 | 1 |
| Majestic Motion Picture Company | — | — | 1 |
| Makino Film Productions | — | 1923 | 1 |
| Mandragora Movies | — | — | 1 |
| Manex Visual Effects | Alameda | — | 1 |
| Manfred Durniok Produktion | Berlin | — | 1 |
| Manga Entertainment | London | 1987 | 1 |
| Manglobe | Suginami | 2002 | 1 |
| Manifold Productions | — | 1977 | 1 |
| Manoli Films | Filipina | 2000 | 1 |
| Manslaughter | — | — | 1 |
| ManyVids | — | 2014 | 1 |
| Mars Entertainment | Bouvignes-sur-Meuse | — | 1 |
| Massa d’Or Produccions | Barcelona | 1992 | 1 |
| Matador Pictures | London | — | 1 |
| Mate Production | Barcelona | — | 1 |
| Mattel Television | Amerika Serikat | 30 Maret 2016 | 1 |
| Maurice Tourneur Productions | — | 1918 | 1 |
| Maverick | Burbank | 1992 | 1 |
| Maxam | — | 24 Juni 1991 | 1 |
| MAXstream | — | Juni 2018 | 1 |
| MBC Group (Arab Saudi) | Riyadh | 18 September 1991 | 1 |
| MCA Television | — | 1951 | 1 |
| McGraw Hill Education | Kota New York | 1888 | 1 |
| Mechanix Film | Hvaler Municipality | 15 Agustus 2009 | 1 |
| Media Mix Japan | Tokyo | 2 April 1993 | 1 |
| MediaNews Group | — | 1983 | 1 |
| Mediaset Premium | — | 20 Januari 2005 | 1 |
| Medienprojekt Wuppertal | — | — | 1 |
| Memfis Film Rights5 | Stockholm | 4 Maret 2004 | 1 |
| Merseyside Film Production Fund | — | — | 1 |
| Merv Griffin Entertainment | — | 1996 | 1 |
| Met Film Production | London | — | 1 |
| Meta Film | Kopenhagen | 27 Desember 2012 | 1 |
| Metahaven | — | — | 1 |
| Metro International | Stockholm | 1995 | 1 |
| Metromuster | Barcelona | 2010 | 1 |
| Metronom Studio | Moskow | — | 1 |
| MGM Television | Beverly Hills | 1956 | 1 |
| MHD Concern Film | Kalverstraat | 1934 | 1 |
| MIA FILM | Praha | 25 Februari 2010 | 1 |