| K&S Films | — | 2005 | 8 |
| K-Films Amerique | Montreal | — | 1 |
| K/O Paper Products | Beverly Hills | 2005 | 1 |
| Kadokawa Corporation | Kabukiza Tower | 2014 | 1 |
| Kadokawa Daiei Studio | Tamagawa, Fujimi | April 2013 | 3 |
| Kadokawa Key-Process | Chiyoda | 1954 | 3 |
| Kadokawa Pictures | Tokyo | 2007 | 38 |
| Kalejdoskop Film Studio | Warsaw | 1988 | 1 |
| Kamerafirma The Camera House Oy | Riihimäki | November 16, 2016 | 1 |
| Kan 11 | Israel | May 15, 2017 | 1 |
| Kanal 1 Drama | — | 1987 | 4 |
| KanalB | — | 2000 | — |
| Kanbar Entertainment | — | 2002 | 1 |
| Kandor Graphics | Granada | 1992 | 1 |
| Kanteerava Studios | Bengaluru | 1966 | 6 |
| Kaplan Film Production | — | — | 1 |
| Kargin Studio | — | August 9, 2004 | 1 |
| Kasander & Wigman Productions | — | — | 1 |
| Kassikuld | — | — | 3 |
| Katalyst Media | Los Angeles | 2000 | 1 |
| Katapult Film | — | — | 1 |
| Kavac Film | — | — | 2 |
| Kavithalayaa Productions | Chennai | 1981 | 35 |
| Kazak Productions | — | July 6, 2007 | 6 |
| KC Medien | Munich | — | 1 |
| Kell Kümme | — | 2003 | — |
| Kemna & Zonen | — | — | 1 |
| Kennedy Miller Mitchell | Australia | 1978 | 14 |
| Kenner Products | Cincinnati | 1946 | 1 |
| Ketchup Entertainment | Los Angeles | 2011 | 1 |
| KFS Production | Bratislava | — | 1 |
| Khalabo Ink Society | — | 2020 | 2 |
| Khanzhonkov Company | Yalta, Moscow | 1906 | 28 |
| Kids' WB | Burbank | September 9, 1995 | 1 |
| Kiev Square Group | Moscow | 1992 | 1 |
| Kievnauchfilm | Kyiv | 1941 | 14 |
| Kigali Films | London | — | 1 |
| Killer Minnow | — | 2008 | — |
| Kim Ki-duk Film | Gyeonggi Province | 2001 | 17 |
| Kimco | — | — | 1 |
| Kinderfilm | Erfurt | 2000 | — |
| Kindle Entertainment | London | 2007 | 3 |
| Kinema | Sarajevo | 1946 | 1 |
| Kinema Citrus | Suginami | March 3, 2008 | 2 |
| Kinema Junpo | — | August 19, 1923 | 1 |
| King Brothers Productions | — | 1941 | 16 |
| King Features Syndicate | New York City | 1915 | 9 |
| King World Productions | Atlanta, New York City, Los Angeles | 1964 | 1 |
| Kingdom Story Company | Nashville | 2019 | 7 |
| Kino Films | Roppongi, Nishi-Shinjuku | April 2011 | — |
| Kino Montreal | Montreal | 2001 | 1 |
| Kino Świat | Warsaw | 2001 | 1 |
| KinoAtis | — | June 23, 2004 | 2 |
| Kinocompany | — | — | 1 |
| Kinografen | — | 1906 | 1 |
| Kinokompanii︠a︡ "Andreevskiĭ flag" | Moscow | 2003 | 4 |
| Kinology | Paris | 2008 | 1 |
| Kinoproduction | Keski-Pasila | 1977 | 11 |
| Kinos Rentals | Helsinki | July 30, 2015 | 1 |
| Kinosto | Taka-Töölö | February 18, 2005 | 4 |
| Kinotaurus | — | — | 2 |
| Kirch Group | Munich | 1955 | 2 |
| Kish Free Zone | — | 1989 | 1 |
| Kitano Agency | Todoroki | 2021 | 1 |
| Kitty Films | Sangen-jaya | 1972 | 5 |
| Klever Pictures | — | 1916 | — |
| Klockworx | Tokyo | January 24, 1997 | 2 |
| Klubb Super 8 | Stockholm | March 29, 2007 | 1 |
| KM Production | — | 1994 | — |
| KNIFE! Films | — | — | 2 |
| Knight Enterprises | Ottawa | — | — |
| KNM | — | — | 1 |
| Knowledge Network | Vancouver | January 12, 1981 | 1 |
| KnowWonder | Washington | 1996 | 1 |
| Kodansha | Otowa | November 1909 | 2 |
| Kokers Films | Kerala | 1985 | 11 |
| Komeetta | Torkkelinmäki | — | 2 |
| Kommunenes Filmcentral | — | 1919 | 8 |
| KOMPAN | Moscow | 1989 | 1 |
| Komplizen Film | Munich | — | 4 |
| Komuna | — | — | 1 |
| Konami | Tokyo | March 21, 1969 | 3 |
| Kong Ngee Motion Picture Production Company | — | 1955 | 1 |
| Konstantin Märska Filmproduktsioon | — | — | 1 |
| Kopelson Entertainment | West Hollywood | — | 1 |
| Kopli Kinokompanii | Tallinn | 2006 | 5 |
| Kordes & Kordes Film | Berlin | 2003 | 2 |
| Korean Arts Movie Studio | — | — | 1 |
| Korean Broadcasting System | Seoul | March 3, 1973 | 1 |
| Koulev Film | Sofia | — | 1 |
| Kourtrajmé | Paris | August 7, 2003 | — |
| Kowalski Films | San Sebastián | — | 17 |
| Kowloon Development | Pioneer Centre | 1961 | 1 |
| KPA Planning | — | — | 1 |
| Kraków | — | — | 1 |
| Kriim | — | — | 2 |
| Kritanjoli Films | — | — | 1 |
| KRO-NCRV | Hilversum | 2014 | 2 |
| KRU Studios | Cyberjaya | 1992 | 4 |
| Krup Productions | — | — | 1 |
| KS Pictures | Los Angeles | 2015 | — |
| KT Corporation | Seongnam | 1981 | 1 |
| KTH | — | — | 22 |
| Kudos | London | 1992 | 6 |
| Kulturtuben | — | 1985 | 1 |
| Kurt Ulrich Film | — | — | 2 |
| Kvartal 95 | Kyiv | 2003 | 8 |
| KykNET | — | October 1999 | 2 |
| Kyoto Animation | Japan, Uji | 1981 | 6 |
| Kyrgyzfilm | Bishkek | 1942 | 19 |