 A Contracorriente Films | Barcelona | 16 de noviembre de 2017 | 14 |
| A Private View | Gante | 24 de mayo de 1994 | 9 |
| A Stern Talking To | — | — | 1 |
| A Very Good Production | Estados Unidos | 2003 | 1 |
| A&M Records | Los Ángeles | 1962 | 3 |
| A'YoY | — | 1994 | 3 |
 A-1 Pictures | Suginami | 9 de mayo de 2005 | 3 |
 A. Drankov & Co. | — | 1907 | 3 |
| A. Film A/S | Copenhague | 1988 | 20 |
| A.A. Les Films Belges | — | — | 1 |
| A.GI.DI. | — | — | 2 |
| A.P.P.P. | Suginami | 1984 | 3 |
| A/S Palladium | Copenhague | 1919 | 2 |
 A24 | Nueva York, Los Ángeles | 20 de agosto de 2012 | 44 |
| AA Visioon Stuudio | — | 1997 | — |
 Aafa-Film | Berlín | 1918 | 18 |
| Aamu Film Company | Länsi-Herttoniemi | — | 9 |
 Aardman Animations | Bristol | 12 de abril de 1972 | 17 |
| Aas Film | — | — | 8 |
| Aashirvad Cinemas | Cochín | 2000 | 25 |
| Aattache Films | — | — | 1 |
| AB Svensk Filminspelning | — | 1922 | 2 |
| ABC Circle Films | — | 1968 | 2 |
 ABC Family Worldwide | Burbank | 1990 | — |
 ABC News | Upper West Side | 15 de junio de 1945 | 1 |
| ABC-Film | — | — | 3 |
| Abhishek Pictures | Haidrābād | 2014 | 3 |
 ABKCO Records | Nueva York | 1961 | 2 |
 Aboriginal Peoples Television Network | Winnipeg | 21 de enero de 1992 | 1 |
| Above Average Productions | Nueva York | — | 1 |
| ABS-CBN Film Productions | — | — | 2 |
| Abú Media | Indreabhán | 2000 | 1 |
 Academia de Arte Dramático | Zagreb | 1896 | 1 |
 Academia de Teatro y Cine de Budapest | — | 1865 | 2 |
| Academy Films | Londres | 1985 | 2 |
 Academy of Media Arts Cologne | Colonia | 1990 | 1 |
| Acajou Films | — | 26 de mayo de 2005 | 2 |
 Access Industries | Nueva York | 1986 | 3 |
| Achab Film | Roma | — | 1 |
| Act Art Generation | — | 21 de mayo de 2002 | 1 |
| Act III Communications | — | 1985 | 1 |
| Act III Productions | — | — | 1 |
 Actors Studio | Nueva York | 5 de octubre de 1947 | 1 |
| Ad Vitam Distribution | Francia | 1998 | 1 |
 Adam & Eve | Hillsborough | marzo 1971 | 18 |
| Adam Film | — | — | 1 |
| Adam's World Of Imagination | Kerala | 2015 | 1 |
| Adastra Films | Cannes | 2008 | 4 |
| Addict Films | Oslo | — | 1 |
| Adelaide Productions | Culver City | 1993 | 1 |
| Adelphi Films | Inglaterra | 1939 | 3 |
| Adhadhu | Malé | 2011 | 1 |
 ADK Holdings | Toranomon | 19 de marzo de 1956 | 3 |
| Adler Entertainment | — | — | 1 |
| Administración Fotocinematográfica Panucraniana | Unión Soviética | 1922 | 19 |
 Administración Nacional de Aeronáutica y del Espacio | Washington D. C. | 29 de julio de 1958 | 2 |
| Adness Entertainment | Los Ángeles | 2007 | — |
 Adult Time | Montreal | 2019 | 8 |
 Aegean Oil S.A. | — | — | 1 |
| Aes-Nihil Productions | — | — | 1 |
 Affirm Films | Culver City | 2008 | 8 |
| African Film Productions | — | 1915 | 1 |
| Afro-Centric Productions | Boston | 1998 | — |
| AFS Film | Estambul | 1997 | 1 |
 AGedO | — | 1992 | 1 |
| Agitator | — | — | 1 |
| Agora Films | — | 1999 | 1 |
| AGS Entertainment | Chennai | 2006 | 22 |
| AGTV Producciones | — | 2011 | — |
 Ahotsa.info | — | 2014 | 1 |
| Aim Rain Limited | Middlesex | 21 de mayo de 1993 | 1 |
| Air Productions | París | 1993 | — |
 Ajia-do Animation Works | Saitama | 1978 | 1 |
| Ajoz Films | Saint-Denis | 1981 | — |
| Akanga Film Asia | — | — | 1 |
| Akis Bado | Vilna | 2019 | 1 |
| Akka Films | Ginebra | 2003 | 3 |
| Al Arabia Cinema Production & Distribution | Guiza | 2000 | 2 |
| Al Hayat Media Center | Estado Islámico | 2014 | 2 |
| Al Jazeera Balkans | Sarajevo | 2011 | 1 |
| Al Jazeera Documentales | — | 2007 | 1 |
| Ala Bianca Group S.r.l. | Módena | 1990 | 1 |
 Alan Landsburg Productions | — | 1971 | 1 |
| Alba Sotorra Productions | — | — | 2 |
 Albafilm-Tirana | Tirana | 1945 | 8 |
| Albanian General Vision | — | — | 1 |
| Albanian National Center of Cinematography | — | — | 1 |
| Albena Produccions | La Alcudia | — | 1 |
| Alberts Frères | Breda | 1899 | — |
 Alchemy | Los Ángeles | 2010 | 3 |
| Alcove Entertainment | Londres | 2005 | 2 |
| ALEF Film & Media Group | Bratislava | 1997 | 1 |
| Aleph Producciones | Buenos Aires | — | 2 |
| Alexander Nanau Production | — | — | 1 |
 Algefa | Berlín | 1936 | 1 |
 Algerian Television Broadcasting | — | — | 2 |
| Ali n' Productions | Casablanca | — | 3 |
| Alia Film | — | — | 3 |
| Alice Films | París | — | 1 |
| Alien Internet Services | Aalst | 2012 | 1 |
| Align | — | — | 1 |
| All Yours Film | — | — | 1 |
| All3Media | Londres | 2003 | — |
| Allary Film | Múnich | 1984 | 1 |
| Allegro Film | Viena | — | 7 |
| Allians Film | — | — | 1 |
| Allianz-Film | Fráncfort del Meno | — | — |
| Allied Filmmakers | — | 1985 | 9 |
| Allied Stars Ltd | — | — | 2 |
| Alpha France | París | 1966 | 4 |
| Alpha Group Company | Shantou | 1993 | — |
 Alpha TV (Grecia) | Cefisia | 26 de enero de 1996 | 1 |
| Alpha-i | Banani (neighbourhood) | — | 1 |
| Alquimia Cinema | Madrid | — | 1 |
| Alta Loma Films | — | diciembre 1999 | 1 |
| Alta Vista | — | — | 1 |
| Alvernia Studios | — | — | 1 |
| AM Television | — | 2012 | 1 |
| Amal Neerad Productions | Ernakulam | 2012 | 2 |
| Amanah Surga Productions | — | — | 2 |
| Amania Films | Vitoria | 2012 | 3 |
 Amaru Entertainment | Atlanta | 1997 | 1 |
| Amateru | Turín | 2018 | 1 |
 Amazon MGM Studios | Culver City | 2010 | 38 |
 Amazon Prime Video | Estados Unidos | 7 de septiembre de 2006 | 7 |
 Amazon.com, Inc. | Seattle | 5 de julio de 1994 | 1 |
| Ambassador Theatres | — | 2001 | 1 |
| Amblin Entertainment | Universal City | 1981 | 95 |
 Amblin Partners | Universal City | 16 de diciembre de 2015 | 11 |
 AMC Networks International Southern Europe | Madrid | 8 de julio de 2014 | 1 |
 Amedia | Novoostapovskaya street, Moscú | 21 de febrero de 2002 | 7 |
 American Broadcasting Company | Nueva York | 12 de octubre de 1943 | 26 |
| American Film Company | — | 2008 | 2 |
 American Film Manufacturing Company | Chicago | 1910 | 39 |
| American Greetings | Cleveland | 1906 | 2 |
| American International Pictures | Los Ángeles | 1954 | 70 |
| American Sports Network | West Palm Beach | 17 de julio de 2014 | — |
| Amigos Creations | Haidrābād | 1999 | 3 |
| Amitabh Bachchan Corporation | Bombay | 1995 | 3 |
| AMOS Pictures | — | — | 1 |
| Amrion | Tallin | 2003 | 9 |
 Amuse | Fujikawaguchiko, Sakuragaokachō | 16 de octubre de 1977 | 3 |
 Anagram Produktion | Lund | 2001 | 8 |
| Anal Vids | Praga | — | — |
| Anand Pandit Motion Pictures | Bombay | — | 5 |
| Anatman Pictures | — | 2013 | 5 |
| And Pictures | Ebisu-Minami | 13 de mayo de 2013 | 2 |
| Andell Holdings | Los Ángeles | — | 1 |
| Angel Films | Copenhague | 1988 | 1 |
| Angel Films | Helsinki | 11 de agosto de 2009 | 1 |
 Animal Logic | Sídney | 1991 | 8 |
 Animal Planet | Silver Spring | octubre 1996 | 1 |
 Animation Digital Network | París | septiembre 2013 | 1 |
 Anime International Company | Nerima | 1982 | 2 |
| Animex Producciones | Puebla | 2000 | 4 |
| Animoon | — | — | 1 |
 Aniplex | Rokubanchō | septiembre 1995 | 1 |
| Anita Stewart Productions | — | 1917 | 1 |
| Anjana Productions | Haidrābād | 1988 | 5 |
| Ankush Hazra Motion Pictures | — | 17 de agosto de 2022 | 2 |
| Annapurna Pictures | Los Ángeles | 2011 | 28 |
 Annapurna Studios | Haidrābād | 1975 | 32 |
| Anosi | Chalandri | octubre 1987 | 1 |
 ANPI | Roma | 5 de abril de 1945 | 1 |
| ANS Productions | Estambul | — | 3 |
 Antenne 2 | — | 1975 | 3 |
| Anthology Studios | — | 17 de noviembre de 2020 | 1 |
| Anurag Kashyap Films | Bombay | 2009 | 7 |
 AP Films | Slough Trading Estate | 1957 | 1 |
| Aperture Entertainment | — | 2009 | 3 |
| Apocalypso Pictures | Boars Hill | — | 1 |
| Apollo Pictures | Nueva York | 1917 | — |
| Apologetics Press | Montgomery | 1979 | 1 |
| Apparition | Manhattan | 6 de agosto de 2009 | 2 |
| Appetite Production | — | 2008 | — |
| Applause Entertainment | Bombay | — | 3 |
| Apple Film Production | Varsovia | 1990 | 1 |
| Apple Original Films | — | — | 3 |
 Apple TV | — | noviembre 2019 | 1 |
| AQS | Praga | 27 de marzo de 1998 | 1 |
 Aquarius Films | Sídney | 2008 | 2 |
| Araba Films | Vitoria | — | — |
| Arad Productions Inc. | — | — | 1 |
 Aragón TV | Aragón | 2006 | 1 |
| Arc Media | — | — | 1 |
| Arca-Winston Films Corp. | — | — | 1 |
| Arcadia | — | — | 1 |
 Arcana Studio | Coquitlam | 2004 | 1 |
| Archaia Entertainment | Hollywood | 2002 | 1 |
| Archant | Norwich | 1845 | 1 |
| Archer Street | Londres | — | 1 |
 Archie Comics | Nueva York, Pelham | 1939 | 1 |
| Archipel 33 | París | 1988 | 2 |
| Archivio Audiovisivo del Movimento Operaio e Democratico | — | — | 1 |
| Arctandriafilm | — | — | 1 |
 ARD | Stuttgart | 5 de junio de 1950 | 2 |
| Ardmore Studios | — | — | 2 |
 Arena Synchron | Berlín | 1972 | — |
| Argentina | — | 9 de julio de 1816 | 1 |
| Argentina Sono Film | — | 1933 | 114 |
 Argos Media Group | — | 1992 | 4 |
| Argosy Films | — | — | 2 |
| Argosy Pictures | — | 1939 | 2 |
| Argus Film Produktie | Ámsterdam | — | 1 |
| Aries Cinematográfica Argentina | Buenos Aires | 1956 | 43 |
| Ark Resources Entertainment | — | 2002 | 1 |
| Arlong Productions | Barcelona | — | 2 |
| Armenakob | — | 5 de octubre de 2000 | — |
| ARP Sélection | París | 20 de enero de 1984 | 6 |
| Arpa Films | Barcelona | — | 1 |
 Arquidiócesis de Caceres | — | 29 de junio de 1951 | 1 |
 ARRAY | — | 2010 | 1 |
| Arrow Films | Hertfordshire | — | 1 |
| Arrow-Film | Oslo | 1964 | 1 |
| Ars Media | — | — | 1 |
 Arsenal | — | 1975 | — |
| Art & Industry | Nueva York | 2004 | 2 |
| Art Aia - La Dolce Berlin | — | — | 1 |
 Art et essai | Montreal | — | 6 |
| Art film 80 | Belgrado | 1980 | 2 |
| Art for The World | Ginebra | 1995 | 1 |
| Art Theatre Guild | — | 1961 | 11 |
| Art-O-Graf | — | 1919 | 1 |
| Artbox | — | — | 1 |
| ARTE France | Issy-les-Moulineaux | 2 de junio de 1986 | 43 |
| Arte France Cinéma | Issy-les-Moulineaux | 30 de agosto de 1991 | 89 |
 Arte Radiotelevisivo Argentino | Buenos Aires | 22 de diciembre de 1989 | 4 |
| Arthouse Traffic | — | 2003 | — |
| Artis Film | Bucarest | — | 1 |
| Artist Company | Seúl | 2016 | — |
| Artist Studio | Corea del Sur | — | 1 |
| Artistas Argentinos Asociados | — | 1941 | 14 |
| Artza Productions | — | 2006 | 1 |
 Artémis Productions | — | 1994 | 11 |
| Aryana Film | — | — | 12 |
| Arzu Film | — | — | 33 |
| As-Sahab | Pakistán | 2001 | 2 |
 ASA Film | Copenhague | 1936 | 1 |
| ASA Film Production | Hellerup | 25 de julio de 1994 | 3 |
| Ascot Elite Entertainment Group | Zúrich | 1928 | 1 |
| Aska Film Productions | — | — | 5 |
| Askania Media | Berlín | 1997 | 1 |
| Asociación Entrepueblos | — | — | 1 |
| Asociación Estadounidense de Enfermeras | Silver Spring | 1896 | — |
| Asociación Mexicana de Cineastas Independientes | — | 1993 | 1 |
| Asociación Nacional de Actores | — | noviembre 1934 | 1 |
| Aspartame Jack | — | — | 1 |
 Aspekt Telefilm | Hamburgo | 1974 | 1 |
| Aspide 1 UG | Berlín | — | 1 |
| Asre Talaei Studio | Teherán | 1951 | 27 |
| Associated Television | Londres | 24 de septiembre de 1955 | — |
| Association coopérative de productions audio-visuelles | Montreal | 6 de febrero de 1971 | 40 |
| AST Studio | — | — | 1 |
| Asta Film | Copenhague | diciembre 2002 | 3 |
| Astor Pictures | Nueva York | 1930 | 1 |
| Astral Media | Montreal | 1961 | 6 |
| Astro Shaw | Technology Park Malaysia | 2005 | 8 |
| Astron-6 | Canadá | 2007 | 3 |
| Asymmetrical Productions | California | 1993 | 1 |
| AT&T SportsNet Rocky Mountain | Denver | 1988 | — |
| Athenaeum Productions | Reino Unido | 2017 | 2 |
| Atlantic Entertainment Group | Estados Unidos | 1974 | 4 |
| Atlantique Productions | París | 1982 | — |
| Atlas Entertainment | Los Ángeles | 1995 | 15 |
| Atlas Film | — | — | 12 |
| Atlasley | Las Palmas de Gran Canaria | 2006 | 3 |
| Atlântida Cinematográfica | Río de Janeiro | 18 de septiembre de 1941 | 1 |
| Atmo Produktion | Estocolmo | — | 2 |
| Atomic Monster Productions | Estados Unidos | 2014 | 18 |
| ATR | — | 2015 | 1 |
 Atresmedia | San Sebastián de los Reyes | 1989 | 7 |
 Atresmedia Cine | San Sebastián de los Reyes | noviembre 2000 | 52 |
| Attackers | Tokio | 1996 | 1 |
 Attraction | — | 2002 | 3 |
| Audax Films | Santa Mónica | 2013 | 1 |
| Augustus Film | Ámsterdam | — | 1 |
| Aura Films | — | — | 2 |
| Aurora Productions | Los Ángeles | 1978 | 6 |
| Austral-American Productions | — | — | 2 |
| Australasian Films | — | — | 12 |
 Australian Broadcasting Corporation | Sídney | julio 1983 | 26 |
| Australian Children's Television Foundation | Australia | 1982 | 1 |
| Australian Film Commission | — | 5 de mayo de 1975 | 7 |
| Australian Film Development Corporation | — | 17 de agosto de 1970 | — |
| Australian Film Syndicate | — | — | 2 |
| Australian International Film Corporation | — | — | 3 |
| Authentic Entertainment | Burbank | 2000 | — |
| Automatic Vaudeville Studios | — | 1998 | — |
| Auvergne-Rhône-Alpes Cinéma | Pôle PIXEL | 1991 | 21 |
| Avala Film | Belgrado | 15 de julio de 1946 | 18 |
| Ave Fenix Pictures Studios | Chicago, Los Ángeles, Arizona | 2014 | 2 |
| Avenue B Productions | — | 2004 | 5 |
 Avex | Izumi Garden Tower | 11 de abril de 1988 | 2 |
| Avista Film | Múnich | — | 2 |
| AVM Productions | Vadapalani | 1945 | 60 |
 AVRO | Hilversum | 1923 | 9 |
| Avventura Films | — | — | 2 |
| Avşar Film | — | — | 6 |
| AwesomenessTV | Los Ángeles | 2012 | 4 |
 AXN | Coral Gables | 1997 | 2 |
 Ay Yapım | Beşiktaş | 2005 | 5 |
| Aymara Films | Burbank | 2024 | 2 |
| Ayngaran International | Londres | 1987 | 8 |
 Ayuntamiento de Barcelona | Casa de la Ciudad de Barcelona | — | 2 |
| Aywon Film Corporation | — | — | 1 |
| Azalea Producciones | — | — | 1 |
| Azar Film | — | — | 1 |
| Azerbaijan State Film Fund | Bakú | 22 de diciembre de 1993 | — |
 Azerbaijanfilm | Bakú | 28 de abril de 1923 | 98 |
 AzTV | Bakú | 14 de febrero de 1956 | 6 |