| I. L. Caragiale National University of Theatre and Film | — | 1954 | 1 |
| I.Sat | Buenos Aires | 1993 | 1 |
| Iblis Films | Brussels | — | 1 |
| Ibtisam Films | Jaffa | — | 1 |
| Icelandic Film Corporation | — | — | 6 |
| ICM Partners | Los Angeles | 1975 | 1 |
| Icon Productions | Los Angeles, California | August 1989 | 33 |
| Iconic Events | Los Angeles | 2020 | — |
| Id ENTERTAINMENT | Akasaka | May 12, 2000 | 1 |
| Ideal Film Company | London | 1911 | 62 |
| Ideas del Sur | — | October 28, 1996 | — |
| Ideosource Entertainment | — | 2011 | 5 |
| IFC Midnight | New York City | — | 1 |
| IFI Sinema | — | — | 4 |
| Ignite Entertainment | Los Angeles | 1998 | — |
| Igra TV | Soviet Union, Russia | 1990 | — |
| IHQ | Samseong-dong | February 1999 | 47 |
| Ikiru Films | Barcelona | — | 11 |
| Ikoon | — | 2001 | 1 |
| Illume | Länsi-Pasila | 1987 | 6 |
| Illuminati Films | Mumbai | 2009 | 4 |
| Illumination | United States, Santa Monica, Los Angeles, California | January 17, 2007 | 18 |
| Illusion | — | 1906 | — |
| Illusion Studios | Buenos Aires | 2001 | 3 |
| Iluzjon | — | 1955 | 24 |
| Image Comics | Berkeley | 1992 | 2 |
| Image Entertainment | Los Angeles | 1981 | 3 |
| Image Nation | — | 2008 | 13 |
| Image Production House | Beirut | — | 2 |
| Image Ten | — | — | 1 |
| Imagem Filmes | Barueri | 1998 | 1 |
| ImageMovers | Novato | 1997 | 12 |
| ImageMovers Digital | Novato | 2007 | 11 |
| IMAX Corporation | Mississauga | 1968 | 3 |
| Impact Pictures | — | 2001 | 2 |
| Impala | — | — | 8 |
| Impala Studios | — | — | 1 |
| Imparja Television Pty Ltd | — | 1988 | — |
| Impress Telefilm Limited | — | 1996 | 25 |
| Imprint Entertainment | Burbank | 2008 | 2 |
| Improvision | Coventry | 1990 | 1 |
| In-Ruum | — | — | 2 |
| Independent Artist Management | Hua Mak | January 18, 2017 | 2 |
| Independent Film Company | New York City | — | 1 |
| Independent Short Film | — | — | 1 |
| IndieMan Productions | San Diego | 2012 | 3 |
| Indigo Film | Rome | 1994 | 20 |
| Industrial Light & Magic | San Francisco, Letterman Digital Arts Center | May 1975 | — |
| Industrie Cinematografiche Italiane | Rome | 1933 | 8 |
| Infinitum Nihil | Los Angeles | 2004 | 7 |
| Infinity Hill | — | — | 3 |
| Inflagranti Film | Berlin | — | — |
| Inforg-M&M Film | Budapest | 2007 | 6 |
| InformAction | Montreal | 1971 | 8 |
| InJourney Destination Management | — | — | 1 |
| Inkblot Productions | Lagos | 2010 | 8 |
| InlayFilm | Moscow | 2007 | 1 |
| Innocent Pictures | Vallensbæk Strand | March 25, 2002 | 3 |
| Insight Film Studios | Vancouver | 1990 | 2 |
| Institut Català de les Empreses Culturals | Barcelona | 2000 | 8 |
| Institut del Cinema Català | Barcelona | 1975 | 3 |
| Institut français | Paris | 2011 | 1 |
| Institut Lumière | — | — | 1 |
| Institut Ramon Llull | Palau del Baró de Quadras | April 5, 2002 | 1 |
| Instituto Nacional de Cinema | — | 1976 | 3 |
| Instytucja Filmowa „Silesia-Film” | — | 1946 | 1 |
| Intel | Santa Clara | July 18, 1968 | 1 |
| Intelligent Creatures | Toronto | 2003 | 1 |
| Inter-Services Public Relations | Rawalpindi | 1949 | 2 |
| Intercity Express | — | June 2, 1991 | 1 |
| Intermedias | Rome | — | 1 |
| Interopa Film | Berlin | 1959 | — |
| Intrepid Pictures | Santa Monica, Los Angeles | 2004 | 12 |
| Ipotesi Cinema | — | 1982 | 1 |
| IPR.VC | Helsinki | December 22, 2014 | 1 |
| IQIYI | Beijing | April 22, 2010 | 2 |
| IQIYI PICTURES | — | — | 1 |
| Iran Center for film Industries | — | — | 4 |
| Iran Film | — | — | 11 |
| Iran Nema Studio | — | 1958 | 2 |
| Iris Productions | — | — | 5 |
| Ironbound Films | Garrison, Garrison | 2003 | 4 |
| Irontree Films | San Diego | — | 1 |
| Isabella Films | Amsterdam | — | 5 |
| Ishimori Productions | Tokyo | 1967 | 14 |
| Isis Cataegis Pictures | — | — | 1 |
| ISL Film | Budapest | — | 2 |
| Israel Film Service | Jerusalem | 1956 | — |
| It's a Laugh Productions | Studio City | November 3, 2003 | 3 |
| It's Alive Films | Hermanninmäki | 2013 | 4 |
| Itaca Film | London | — | 1 |
| Itala Film | Turin | 1907 | 53 |
| Itala-Film | Berlin | — | — |
| ItalFrance films | Paris | — | 1 |
| Italian General Confederation of Labour | Rome | June 9, 1944 | 1 |
| Italy | — | June 18, 1946 | 1 |
| ITC Entertainment | London | 1954 | 41 |
| Item 7 | Canada | 2009 | 8 |
| ITV | The London Studios | September 22, 1955 | 1 |
| ITV Anglia | Norwich | 1959 | — |
| ITV Central | Birmingham | 1982 | 2 |
| ITV Granada | MediaCityUK | May 3, 1956 | 4 |
| ITV Studios | MediaCityUK | 1954 | 3 |
| ITV Yorkshire | Leeds | 1968 | 1 |
| ITVS | San Francisco | — | 8 |
| Ivan Film Productions | — | 1914 | 1 |
| Ivan Fíla Filmproduktion | Frankfurt | — | 1 |
| Ivi.ru | Moscow | February 26, 2010 | 1 |
| Iwanami Productions | — | 1950 | 1 |
| IWantTFC | — | 2011 | — |