| Imparja Television Pty Ltd | — | 1988 | — |
| Industrial Light & Magic | San Francisco, Letterman Digital Arts Center | May 1975 | — |
| Inflagranti Film | Berlin | — | — |
| Interopa Film | Berlin | 1959 | — |
| Israel Film Service | Jerusalem | 1956 | — |
| Itala-Film | Berlin | — | — |
| ITV Anglia | Norwich | 1959 | — |
| IWantTFC | — | 2011 | — |
| Johan Löfstedt Filmproduktion | Stockholm | June 23, 1999 | — |
| John de Mol Productions | — | — | — |
| Joop van den Ende TV-Productions | — | — | — |
| JSpictures | Seoul | 1999 | — |
| Juicy Pink Box | New York City | 2009 | — |
| Jupiter Entertainment | Knoxville | 1996 | — |
| KanalB | — | 2000 | — |
| Kell Kümme | — | 2003 | — |
| Killer Minnow | — | 2008 | — |
| Kinderfilm | Erfurt | 2000 | — |
| Kino Films | Roppongi, Nishi-Shinjuku | April 2011 | — |
| Klever Pictures | — | 1916 | — |
| KM Production | — | 1994 | — |
| Knight Enterprises | Ottawa | — | — |
| Kourtrajmé | Paris | August 7, 2003 | — |
| KS Pictures | Los Angeles | 2015 | — |
| La Blogothèque productions | Paris | November 12, 2009 | — |
| La Grosse Équipe | Paris | 2005 | — |
| Lava Bear Films | Los Angeles | 2011 | — |
| Leeds Animation Workshop | Leeds | 1978 | — |
| Les Valseurs | Paris | 2013 | — |
| Lightworkers Media | Los Angeles | 2011 | — |
| Lignose Hörfilm System Breusing | Berlin | — | — |
| Lillasyster produktion | Stockholm | 2005 | — |
| Link production | France | 2005 | — |
| Lionsgate Television | North Vancouver | July 1997 | — |
| Logos Film | Seoul | November 29, 2000 | — |
| Lost Colony Entertainment | New York City | 2001 | — |
| Lowave | — | 2002 | — |
| Lumière | — | 1990 | — |
| Lynch/Frost Productions | — | 1989 | — |
| Lühifilmi Keskus ShortEST | — | 2014 | — |
| Mac Guff | Paris | 1986 | — |
| Madefor Film | Berlin | 2020 | — |
| Magic TV | Paris | March 29, 1993 | — |
| Makido film | Vienna, Weimar, Meidling | 2011 | — |
| Makino Production | — | June 1925 | — |
| Mammoth Screen | — | October 24, 2006 | — |
| Maran Film GmbH | Stuttgart, Baden-Baden | 1963 | — |
| March Entertainment | Toronto | 1996 | — |