| London Film Academy | — | 2001 | 1 |
| LONGRIDE | — | — | 1 |
 Looks Film | — | 1995 | 1 |
| Los Angeles Daily News | Los Ángeles | 1911 | 1 |
| Lost Ones | — | julio 2020 | 1 |
 Louisville and Nashville Railroad | Louisville | 1850 | 1 |
| Luis Film | — | — | 1 |
| Lux Compagnie Cinématographique de France | Francia | 14 de noviembre de 1906 | 1 |
| LuXx Video | Budapest | julio 1993 | 1 |
| M-production | 1st Tverskaya-Yamskaya Street | 1992 | 1 |
| M.H. Films Productions | — | — | 1 |
| Macalla Teoranta | Dublín | 1997 | 1 |
| MadLove Film Factory | — | — | 1 |
| Maecenas Film- und Fernsehproduktion | Múnich | — | 1 |
 Maeda Corporation | Tokio | 1919 | 1 |
| MAG Yapım | provincia de Uşak | 2023 | 1 |
| Magellan Films | Bruselas | — | 1 |
| Magnéto Presse | Boulogne-Billancourt | 24 de julio de 2008 | 1 |
 Mahaka Media | Yakarta | 1992 | 1 |
 Mainz University of Applied Sciences | — | 1971 | 1 |
 Maison 4:3 | Montreal | 16 de julio de 2014 | 1 |
| Majestic Motion Picture Company | — | — | 1 |
| Maljack Productions | — | — | 1 |
| Malva | Lehedzyne | 1993 | 1 |
| Manderlay | — | — | 1 |
| Mandragora Movies | — | — | 1 |
 Manglobe | Suginami | 2002 | 1 |
| Manifold Productions | — | 1977 | 1 |
| Manoli Films | Filipinas | 2000 | 1 |
| Marfa Peach Company | — | — | 1 |
| Mars Entertainment | Bouvignes-sur-Meuse | — | 1 |
| Massa d’Or Produccions | Barcelona | 1992 | 1 |
| Matador Pictures | Londres | — | 1 |
| Maurice Tourneur Productions | — | 1918 | 1 |
| Maverick | Burbank | 1992 | 1 |
| Max Productions | — | — | 1 |
| Maxam | — | 24 de junio de 1991 | 1 |
 Maxim | Estados Unidos | mayo 1995 | 1 |
| Maxlab Cinemas and Entertainments | Cochín | 2009 | 1 |
 MAXstream | — | junio 2018 | 1 |
| Maïa Films | — | — | 1 |
| MBK Entertainment | Yeoksam-dong | 2006 | 1 |
| MBP | Múnich | — | 1 |
| MCA Television | — | 1951 | 1 |
 McGraw-Hill Education | Nueva York | 1888 | 1 |
| Mechanix Film | Hvaler | 15 de agosto de 2009 | 1 |
| Media Asia Film Distribution Company | — | 5 de octubre de 1993 | 1 |
 Media Factory | Shibuya | diciembre 1986 | 1 |