| Complete Index to World Film | — | 2004 | 1 |
| Connaissance Films | New York City | — | 1 |
| Constellation Productions | — | — | 1 |
| Contact Films | — | — | 1 |
| Content Providers | — | — | 1 |
| Contents Wing | — | — | 1 |
| Contracosta Produções | Lisbon | 1993 | 1 |
| Corinthia Regional Unit | — | — | 1 |
| Corner Films | Marrakech | — | 1 |
| CosmoKino | Brussels | — | 1 |
| Cosmopolitan Television | — | — | 1 |
| Counihan-Villiers Films | — | — | 1 |
| Creandus Films | — | — | 1 |
| Creative Europe | Brussels | 2012 | 1 |
| Creative Motion | Pescara | 2016 | 1 |
| Creative Power Entertaining | Guangdong | October 21, 2004 | 1 |
| Critérion Film | — | — | 1 |
| CRM Productions | — | — | 1 |
| Crown International | Elkhart | 1947 | 1 |
| Cube Entertainment | Seoul | August 29, 2006 | 1 |
| Cube Vision | Santa Monica | — | 1 |
| Culture Convenience Club | Tokyo | 1982 | 1 |
| Cumulus Project | — | 1992 | 1 |
| Czołówka Film Studio | — | — | 1 |
| D.N. Dream Partners | — | — | 1 |
| Da Huang Pictures | — | 2004 | 1 |
| Daedalus Productions | — | 1980 | 1 |
| Daiei | Minatojima Nakamachi | April 10, 1957 | 1 |
| Dalchows verden | — | — | 1 |
| Dania Biofilm Kompagni | Copenhagen Municipality | March 2, 1913 | 1 |
| Dania Film | Rome | 1970 | 1 |
| Dansk Farve og Tegnefilm | — | December 5, 1942 | 1 |
| Dansk skalle | — | 2000 | 1 |
| Darfilm | Saint Petersburg | — | 1 |
| Darlow Smithson Productions | London | — | 1 |
| Das kleine Fernsehspiel | — | — | 1 |
| Davaj Film | Luleå | February 3, 2006 | 1 |
| David Production | Nishitōkyō-shi | 2007 | 1 |
| Davis Entertainment Filmworks | — | 1984 | 1 |
| Dawn Media Group | Karachi | February 1947 | 1 |
| DAWSON films | Prague | November 27, 2013 | 1 |
| DaZu Films | Bonn | — | 1 |
| Deeper | Los Angeles | 2019 | 1 |
| Deewan Pictures | — | — | 1 |
| DEFA-Studio für populärwissenschaftliche Filme | — | 1952 | 1 |
| Defender Films | Auckland | February 10, 2003 | 1 |
| DeMille Pictures Corporation | — | — | 1 |
| Deulig Film | Berlin | 1916 | 1 |