| Messercola Drama & Soap | Netherlands | — | — | 3 |
| Metrafilms | Russia | 1993 | — | 3 |
| Miller-Boyett Productions | United States | 2015 | 2020 | 3 |
| Millstreet Films | Netherlands | — | — | 3 |
| Miso Film | Denmark | 2004 | — | 3 |
| Morgana film | Italy | 1914 | 1915 | 3 |
| Motion Picture & General Investment | — | 1955 | 1989 | 3 |
| Moviemax | Italy | 2001 | 2015 | 3 |
| MTV | United States | August 1981 | — | 3 |
| Mubi | United Kingdom | 2007 | — | 3 |
| Mushroom Pictures | Australia | — | — | 3 |
| NALA Films | United States | 2005 | — | 3 |
| Namah Pictures | India | — | — | 3 |
| Nanjing Film Studio | People's Republic of China | — | — | 3 |
| National Audiovisual Centre | Luxembourg | 1989 | — | 3 |
| National Congress of Industrial Heritage | Japan | — | — | 3 |
| National Film and Television School | United Kingdom | 1971 | — | 3 |
| National General Pictures | United States | 1951 | — | 3 |
| National State Television and Radio Company of the Republic of Belarus | Belarus | September 26, 1991 | — | 3 |
| NBC Ajans | Turkey | — | — | 3 |
| Nederlandse Programma Stichting | Netherlands | 1995 | September 2010 | 3 |
| Negah Cinematic Organization | Pahlavi Iran | — | — | 3 |
| Negativ Film Productions | Czech Republic | November 28, 1995 | — | 3 |
| Nest Family Entertainment | — | 1987 | — | 3 |
| Nestor Film Company | United States | 1911 | 1919 | 3 |
| Neue deutsche Filmgesellschaft | Germany | August 13, 1947 | — | 3 |
| New Century Production | Egypt | 2004 | — | 3 |
| Newmarket Films | — | 1994 | — | 3 |
| NHK Broadcasting Center | Japan | March 1973 | — | 3 |
| Nihon Ad Systems | Japan | October 1975 | — | 3 |
| Nordsjøfilm | Norway | — | — | 3 |
| Norsk Filmstudio | Norway | — | — | 3 |
| Norway Film Development Company | Norway | — | — | 3 |
| Nouvelles Éditions de Films | France | — | — | 3 |
| O Entertainment | United States | 1990 | 2013 | 3 |
| O2 Films | Brazil | — | — | 3 |
| Office de radiodiffusion télévision française | France | 1964 | 1974 | 3 |
| Official Credit Institute | Spain | 1962 | — | 3 |
| Ognon Pictures | France | — | — | 3 |
| Ombra Films | Spain | — | — | 3 |
| Omega Film & Television | Sweden | — | — | 3 |
| On the Day Productions | United States | — | — | 3 |
| One Cool Film Production Limited | — | 2013 | — | 3 |
| Oslo Talefilm | Norway | — | — | 3 |
| Overture Films | United States | 2006 | 2010 | 3 |
| Ovídeo TV | Spain | — | — | 3 |
| Owesen-film | Norway | — | — | 3 |
| P.A. Works | Japan | November 10, 2000 | — | 3 |
| Pakshiraja Studios | — | 1945 | 1972 | 3 |
| PalmStar Media | — | — | — | 3 |
| Pausoka Entertainment | Spain | 1988 | — | 3 |
| Pavra Entertainment | India | — | — | 3 |
| Pearl Street Films | — | 2012 | — | 3 |
| Pearl Studios | People's Republic of China | August 6, 2012 | — | 3 |
| Pegasus Pictures | Iceland | — | — | 3 |
| Películas Pendelton | Spain | 1992 | — | 3 |
| Perspektywa Film Studio | Poland | February 1978 | — | 3 |
| Phase 4 Films | — | 1996 | — | 3 |
| Picturehouse | United States | 2005 | May 8, 2008 | 3 |
| Pieter Van Huystee Film and Television | Netherlands | 1995 | — | 3 |
| Piraya Film | Norway | April 8, 1999 | — | 3 |
| Platige Image | Poland | 1997 | — | 3 |
| Playboy Enterprises | United States | 1953 | — | 3 |
| PlayStation Productions | — | 2019 | — | 3 |
| Plaza Studio | Pahlavi Iran | — | — | 3 |
| Pleasure Productions | United States | 1987 | — | 3 |
| PM S.A. | France | 1992 | — | 3 |
| Polish Film Institute | Poland | 2005 | — | 3 |
| Polsat | Poland | December 5, 1992 | — | 3 |
| Polygon Pictures | Japan | July 22, 1983 | — | 3 |
| Pomor Film | Norway | — | — | 3 |
| Portobello Pictures | United Kingdom | — | — | 3 |
| Potential Studios | — | 2014 | — | 3 |
| Pour toi public productions | France | September 26, 2001 | — | 3 |
| Première Heure | France | — | — | 3 |
| Primary Wave | United States | 2006 | — | 3 |
| Pritish Nandy Communications | India | 1993 | — | 3 |
| Produksi Film Negara | Indonesia | 1949 | — | 3 |
| Produktion S. Bauman | Sweden | 1939 | — | 3 |
| Proximus Group | Belgium | 1930 | — | 3 |
| Purple Pebble Pictures | — | 2015 | — | 3 |
| Puzzy Power | Denmark | 1998 | January 21, 2020 | 3 |
| Pystymetsä | Finland | 2008 | — | 3 |
| R-B studio | Pahlavi Iran | — | — | 3 |
| RA Pictures | Indonesia | — | — | 3 |
| Rabbit Films | Finland | 2000 | — | 3 |
| Raging Stallion Studios | United States | 1998 | — | 3 |
| Rainbow S.p.A. | Italy | 1995 | — | 3 |
| Raw Nerve | United States | 2004 | — | 3 |
| RCS MediaGroup | Italy | 1986 | — | 3 |
| Reader's Digest | United States | 1922 | — | 3 |
| Rei Pictures | — | 2010 | — | 3 |
| Roadrunner Network, Inc. | — | 1989 | 2013 | 3 |
| Rocket Pictures | — | 1996 | — | 3 |
| Rosebud Productions | United States | — | — | 3 |
| Royal Air Force Film Production Unit | United Kingdom | 1941 | March 1947 | 3 |
| RT Features | Brazil | 2005 | — | 3 |
| Rubicon TV | Norway | — | — | 3 |
| RVK Studios | Iceland | — | — | 3 |
| Rádio e Televisão de Portugal | Portugal | 1935 | — | 3 |