| CL Productions | Polygono | 1998 | 1 |
| Cloak & Co. | — | — | 1 |
| Closer Media | — | 2022 | 1 |
| ClubJenna | Scottsdale | 2000 | 1 |
| Columbia Pictures Television | Sony Pictures Studios | May 6, 1974 | 1 |
| Comedy Central | New York City | April 1991 | 1 |
| Comedy Partners | — | — | 1 |
| Comic Strip Production | Marseille | 1992 | 1 |
| Commonwealth Film Laboratories | — | — | 1 |
| Compagnie des Phares et Balises | Paris | 1992 | 1 |
| Compagnie Éric Rohmer | — | — | 1 |
| Companhia Cinematográfica Vera Cruz | — | — | 1 |
| Company of Wolves | — | — | 1 |
| Conseil des arts et des lettres du Québec | Quebec City | 1994 | 1 |
| Conspiracy Entertainment | Long Beach | 1997 | 1 |
| Constance Talmadge Film Company | — | — | 1 |
| Contact Films | — | — | 1 |
| Continental Company | — | — | 1 |
| Corner Films | Marrakech | — | 1 |
| Counihan-Villiers Films | — | — | 1 |
| Cowboy Films | — | — | 1 |
| Creative Power Entertaining | Guangdong | October 21, 2004 | 1 |
| Crescendo Productions | — | — | 1 |
| CS Lebowski | Florence | — | 1 |
| Cube Entertainment | Seoul | August 29, 2006 | 1 |
| Cube Vision | Santa Monica | — | 1 |
| Cumulus Project | — | 1992 | 1 |
| Current Time TV | Prague | February 7, 2017 | 1 |
| Curzon Artificial Eye | London | 1976 | 1 |
| Cyfrowy polsat | Warsaw | December 5, 1999 | 1 |
| Cyprus Broadcasting Corporation | Nicosia | 1953 | 1 |
| Daedalus Productions | — | 1980 | 1 |
| DAG Creative Media | West Bengal | 2010 | 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 |
| Darafsh Organization | — | — | 1 |
| Darfilm | Saint Petersburg | — | 1 |
| Darlow Smithson Productions | London | — | 1 |
| Das kleine Fernsehspiel | — | — | 1 |
| Dauka | Riga | July 17, 1991 | 1 |
| Davaj Film | Luleå | February 3, 2006 | 1 |
| David Production | Nishitōkyō-shi | 2007 | 1 |
| DCM Film Distribution | Berlin | 2008 | 1 |
| De Ventós Films | — | — | 1 |