| A Band Apart | Los Angeles | 1991 | 13 |
| A Contracorriente Films | Barcelona | 16 November 2017 | 14 |
| A Film Eesti | — | 1994 | — |
| A Stern Talking To | — | — | 1 |
| A&M Records | Los Angeles | 1962 | 3 |
| A+E Global Media | Kota New York | 1984 | 1 |
| A-1 Pictures | Suginami | 9 Mei 2005 | 3 |
| A-Film | Amsterdam | 1999 | 1 |
| A.A. Les Films Belges | — | — | 1 |
| A.GI.DI. | — | — | 2 |
| A/S Palladium | Kopenhagen | 1919 | 2 |
| A24 | Kota New York, Los Angeles | 20 Agustus 2012 | 44 |
| Aamir Khan Productions | Mumbai | 1999 | 10 |
| Aamu Film Company | Länsi-Herttoniemi | — | 9 |
| AB Bild & Ton | — | — | 2 |
| AbbottVision | London | 2008 | 2 |
| ABC Circle Films | — | 1968 | 2 |
| ABC Family | Los Angeles | 29 April 1977 | 1 |
| ABC Family Worldwide | Burbank | 1990 | — |
| ABC Studios | Burbank | 21 Maret 1985 | 3 |
| ABC Television Limited | London | 1956 | — |
| AbemaNews | Tokyo | April 2015 | — |
| Abhishek Agarwal Arts | Hyderabad | 2018 | 1 |
| Abhishek Pictures | Hyderabad | 2014 | 3 |
| ABKCO Records | Kota New York | 1961 | 2 |
| Abominable Pictures | — | 2006 | — |
| Above Average Productions | Kota New York | — | 1 |
| ABS-CBN Corporation | Kota Quezon | 13 Juni 1946 | 38 |
| ABS-CBN Film Productions | — | — | 2 |
| ABS-CBN Studios | Diliman | 1962 | — |
| Absolute Entertainment | Upper Saddle River | 1986 | 1 |
| Abu Dhabi Media | Abu Dhabi | 2007 | 1 |
| AC/E | Madrid | 30 April 2010 | 1 |
| Academy Films | London | 1985 | 2 |
| Academy of Media Arts Cologne | Köln | 1990 | 1 |
| Academy of Theatre, Radio, Film and Television | — | 1945 | 1 |
| Access Industries | Kota New York | 1986 | 3 |
| Acció | Cerdanyola del Vallès | 1989 | 1 |
| Acropolis Entertainment | — | 6 Oktober 2006 | 1 |
| Act Art Generation | — | 21 Mei 2002 | 1 |
| Act III Communications | — | 1985 | 1 |
| Actas | Mitaka | 6 Juli 1998 | 1 |
| Action International Pictures | Culver City | 1986 | 2 |
| Action Synthese | — | 21 April 1998 | 1 |
| Ad Vitam Distribution | Prancis | 1998 | 1 |
| Adam & Eve | Hillsborough | Maret 1971 | 18 |
| Adam Film | — | — | 1 |
| Adam's World Of Imagination | Kerala | 2015 | 1 |
| Adams Filmi | Helsinki | 1912 | 2 |
| Addict Films | Oslo | — | 1 |
| Adel Productions | — | 1968 | 6 |
| Adelaide Film Festival | Glenside | 2002 | 1 |
| ADK Holdings | Toranomon | 19 Maret 1956 | 3 |
| Advanced Action Videos | Redding | 7 Mei 2003 | 1 |
| Advent Film Group | Purcellville | 2007 | — |
| AEG Live | Los Angeles | — | 3 |
| Aetios Productions | Saint-Sauveur | — | 1 |
| Affirm Films | Culver City | 2008 | 8 |
| AFI Conservatory | — | 1969 | 1 |
| AFIFA | Wiesbaden | 1921 | — |
| Africa Magic | Nigeria | 2004 | 1 |
| AFS Film | Istanbul | 1997 | 1 |
| Agat Films & Cie – Ex Nihilo | Paris | 30 Juni 1986 | 30 |
| AGBO | Los Angeles | 27 Maret 2015 | 10 |
| AGedO | — | 1992 | 1 |
| Agora Films | — | 1999 | 1 |
| AGS Entertainment | Chennai | 2006 | 22 |
| AGTV Productions | — | 2011 | — |
| AI Multimedia | Nashville | 2018 | 1 |
| Aim Rain Limited | Middlesex | 21 Mei 1993 | 1 |
| Ajay Devgn FFilms | Mumbai | 2000 | 13 |
| Ajia-do Animation Works | Saitama | 1978 | 1 |
| Akka Films | Jenewa | 2003 | 3 |
| Aksoy Film Production | Istanbul | — | 2 |
| Al Jazeera | Doha | November 1996 | 3 |
| Al Jazeera Documentary Channel | — | 2007 | 1 |
| Alatas Films | — | — | 1 |
| Alba Sotorra Productions | — | — | 2 |
| Albachiara | — | — | 2 |
| Albafilm-Tirana | Tirana | 1945 | 8 |
| Albena Produccions | L'Alcúdia | — | 1 |
| Albert Bonniers Förlag | Stockholm | 1837 | 1 |
| Alberts Frères | Breda | 1899 | — |
| Alchemy | Los Angeles | 2010 | 3 |
| Alcon Entertainment | Los Angeles | 1997 | 32 |
| Alcove Entertainment | London | 2005 | 2 |
| ALEF Film & Media Group | Bratislava | 1997 | 1 |
| Aleph Producciones | Buenos Aires | — | 2 |
| Alexander Nanau Production | — | — | 1 |
| Alexandra Film | Tallinn | 30 Januari 2009 | 3 |
| Alexandros Film | — | — | 1 |
| Alfa Pictures | Barcelona | — | 1 |
| Algefa | Berlin | 1936 | 1 |
| Alia Film | — | — | 3 |
| Alice Films | Paris | — | 1 |
| Alien Internet Services | Aalst, Belgia | 2012 | 1 |
| Align | — | — | 1 |
| All Things Comedy | Los Angeles | Oktober 2012 | 1 |
| All Yours Film | — | — | 1 |
| All3Media | London | 2003 | — |
| Allegro Film | Wina | — | 7 |
| Allen Media Group | Los Angeles | 1993 | — |
| Allfilm | — | 1995 | 30 |
| Alliance Films | Montreal | 2007 | 15 |
| Allied Filmmakers | — | 1985 | 9 |
| Allied Stars Ltd | — | — | 2 |
| Alligator Film | — | — | 1 |
| Allspark Pictures | Burbank | Mei 2008 | 1 |
| Alpha France | Paris | 1966 | 4 |
| Alpha Group Company | Shantou | 1993 | — |
| Alpha TV | Kifisia | 26 Januari 1996 | 1 |
| Alpha-i | Banani (neighbourhood) | — | 1 |
| AlphaVille Pictures Copenhagen | — | 2003 | 2 |
| Alravista | Palo Alto | 1994 | 2 |
| Alta Loma Films | — | Desember 1999 | 1 |
| Alta Vista | — | — | 1 |
| Altamira Pictures | — | 1993 | 1 |
| Altitude Film | — | 2012 | 4 |
| AM Television | — | 2012 | 1 |
| Amania Films | Vitoria | 2012 | 3 |
| Amaru Entertainment | Atlanta | 1997 | 1 |
| Amazon | Seattle | 5 Juli 1994 | 1 |
| Ambient Entertainment | Hannover | 11 Oktober 1999 | 1 |
| Amblin Partners | Universal City | 16 Desember 2015 | 11 |
| AMC Networks International Southern Europe | Madrid | 8 Juli 2014 | 1 |
| Amedia | Novoostapovskaya street, Moskow | 21 Februari 2002 | 7 |
| American Film Company | — | 2008 | 2 |
| American International Pictures | Los Angeles | 1954 | 70 |
| American Zoetrope | San Francisco | 1969 | 57 |
| Amicus Productions | Shepperton | 1960 | 23 |
| Amigos Creations | Hyderabad | 1999 | 3 |
| Amiguetes Entertainment | — | 1994 | 4 |
| Amitabh Bachchan Corporation | Mumbai | 1995 | 3 |
| AMOS Pictures | — | — | 1 |
| Amrion | Tallinn | 2003 | 9 |
| Amuse | Fujikawaguchiko, Yamanashi, Sakuragaokachō | 16 Oktober 1977 | 3 |
| Anagram Produktion | Lund | 2001 | 8 |
| Anagram Sverige | Malmö | 3 Agustus 2004 | — |
| Anand Pandit Motion Pictures | Mumbai | — | 5 |
| Anatman Films | — | — | 1 |
| Anchor Bay Entertainment | Beverly Hills | 1985 | 2 |
| And Pictures | Ebisu-Minami | 13 Mei 2013 | 2 |
| Andell Holdings | Los Angeles | — | 1 |
| ANDMARQ | — | 8 September 2015 | 2 |
| Angel Digital Pvt Ltd | — | — | 1 |
| Angel Films | Helsinki | 11 Agustus 2009 | 1 |
| Angels Broadcast Television | Los Angeles | 1985 | — |
| Animagrad | Kyiv | 2012 | 2 |
| Animation Digital Network | Paris | September 2013 | 1 |
| Animoon | — | — | 1 |
| Animose Studio | Moskow | 1999 | — |
| Animācijas brigāde | Riga | 19 Januari 1993 | 4 |
| Aniplex | Rokubanchō | September 1995 | 1 |
| Anjali Pictures | — | — | 5 |
| Anjana Productions | Hyderabad | 1988 | 5 |
| Ankush Hazra Motion Pictures | — | 17 Agustus 2022 | 2 |
| Annapurna Pictures | Los Angeles | 2011 | 28 |
| Annapurna Studios | Hyderabad | 1975 | 32 |
| Anonymous Content | Culver City | 1999 | 27 |
| Anosi | Chalandri | Oktober 1987 | 1 |
| ANS Productions | Istanbul | — | 3 |
| ANS TV | Baku | 1991 | 1 |
| Antelope | — | — | 1 |
| Antidote Films | Kota New York | — | 1 |
| Anurag Kashyap Films | Mumbai | 2009 | 7 |
| Anzervos | Athena | 1943 | 13 |
| AP Films | Slough Trading Estate | 1957 | 1 |
| Apatow Productions | Los Angeles | 1999 | 25 |
| Aperture Entertainment | — | 2009 | 3 |
| Apologetics Press | Montgomery, Alabama | 1979 | 1 |
| Appaloosa Films | Paris | 2009 | 4 |
| Appalshop | — | 1969 | 2 |
| Appetite Production | — | 2008 | — |
| Appian Way Productions | West Hollywood | 2004 | 14 |
| Applause Entertainment | Mumbai | — | 3 |
| Apple Film Production | Warsawa | 1990 | 1 |
| Apple TV | — | November 2019 | 1 |
| Aprilfilm | Fredrikstad | — | 3 |
| AQS | Praha | 27 Maret 1998 | 1 |
| Aquarius Films | — | — | 1 |
| Aquila Films | Italia | 1907 | 2 |
| Aquí y Allí Films | Madrid | 2010 | 9 |
| Ara-Film | — | — | 10 |
| Araba Films | Vitoria | — | — |
| Arad Productions Inc. | — | — | 1 |
| Arc Media | — | — | 1 |
| Arca-Winston Films Corp. | — | — | 1 |
| Arcana Studio | Coquitlam | 2004 | 1 |
| Ardmore Studios | — | — | 2 |
| Arena Films | — | — | 6 |
| Arena Synchron | Berlin | 1972 | — |
| Argentina | — | 9 Juli 1816 | 1 |
| Argentina Sono Film | — | 1933 | 114 |
| Argo Pictures | — | 14 Februari 1990 | 1 |
| Argos Comunicación | — | 1992 | 4 |
| Argos Films | — | 1949 | 16 |
| Arlong Productions | Barcelona | — | 2 |
| Armenakob | — | 5 Oktober 2000 | — |
| Army Pictorial Service | — | — | 1 |
| Arnljot Berg Filmproduksjon | Oslo | 1966 | 2 |
| ARP Sélection | Paris | 20 Januari 1984 | 6 |
| Arrow Films | Hertfordshire | — | 1 |
| Arsenal | — | 1975 | — |
| Arsmedia | — | — | 1 |
| Art & Industry | Kota New York | 2004 | 2 |
| Art Aia - La Dolce Berlin | — | — | 1 |
| Art Aia-Creatives / In / Residence | Sesto al Reghena | — | 1 |
| Art for The World | Jenewa | 1995 | 1 |
| Art Port | Tokyo | Oktober 1990 | 4 |
| Art Theatre Guild | — | 1961 | 11 |
| Artbox | — | — | 1 |
| Arte | Strasbourg | — | 76 |
| Arte Radiotelevisivo Argentino | Buenos Aires | 22 Desember 1989 | 4 |
| Artfilm | Stockholm | — | 10 |
| Artis Film | Bukares | — | 1 |
| Artisan Entertainment | Amerika Serikat, Santa Monica | 1982 | 20 |
| Artist Company | Seoul | 2016 | — |
| Artist Studio | Korea Selatan | — | 1 |
| Artists Equity | — | 2022 | 5 |
| Artland | Musashino | 14 September 1978 | 1 |
| Arts Council England | — | 1994 | 8 |
| Arts Council of Great Britain | — | 1940 | 2 |
| Arts Council of Wales | Wales Millennium Centre | 1946 | 1 |
| Artédis | — | 1983 | 1 |
| ARY Digital Network | — | 2000 | — |
| ARY Films | Karachi | — | 2 |
| Arzu Film | — | — | 33 |
| As-Sahab | Pakistan | 2001 | 2 |
| Asahi Broadcasting Group Holdings | Osaka | 15 Maret 1951 | 1 |
| Ashmont Productions | Los Angeles | 1965 | — |
| Aska Film Productions | — | — | 5 |
| Askania Media | Berlin | 1997 | 1 |
| Asmik Ace Entertainment | Tokyo, Frederikshavn | 1985 | 7 |
| Aspekt Telefilm | Hamburg | 1974 | 1 |
| Aspide 1 UG | Berlin | — | 1 |
| Asre Talaei Studio | Teheran | 1951 | 27 |
| Assemblage Entertainment | Mumbai | Desember 2013 | 2 |
| Associated Exhibitors | Kota New York | — | 2 |
| Associated Talking Pictures | — | — | 2 |
| Associated-Rediffusion | London | 22 September 1955 | 1 |
| Association of Malayalam Movie Artists | — | — | 1 |
| AST Studio | — | — | 1 |
| Asta Film | Kopenhagen | Desember 2002 | 3 |
| AStory | Seoul | 2004 | 2 |
| Astral Media | Montreal | 1961 | 6 |
| Astro Shaw | Taman Teknologi Malaysia | 2005 | 8 |
| AT&T SportsNet Pittsburgh | Pittsburgh | 1986 | — |
| Athenaeum Productions | Britania Raya | 2017 | 2 |
| Atlantic Entertainment Group | Amerika Serikat | 1974 | 4 |
| Atlantique Productions | Paris | 1982 | — |
| Atlas Entertainment | Los Angeles | 1995 | 15 |
| Atlas Film | — | — | 12 |
| Atlas Film Company | — | — | 1 |
| Atlasley | Las Palmas de Gran Canaria | 2006 | 3 |
| ATO Records | Kota New York | 2000 | 1 |
| Atopia | Montreal | 2000 | 2 |
| ATR | — | 2015 | 1 |
| Atresmedia | San Sebastián de los Reyes | 1989 | 7 |
| Attackers | Tokyo | 1996 | 1 |
| Attraction | — | 2002 | 3 |
| ATV | Rusia | 15 September 1988 | — |
| Atípica Films | Madrid | — | 7 |
| Audax Films | Santa Monica | 2013 | 1 |
| Audiovision | — | 2002 | 3 |
| August Cinema | Thiruvananthapuram | 2011 | 8 |
| August Entertainment | — | 1988 | 1 |
| August First Film Studio | Beijing | 1952 | 35 |
| Augustus Film | Amsterdam | — | 1 |
| Aura Films | — | — | 2 |
| Aurora Film Corporation | Kolkata | 1906 | 3 |
| Aurora Studios | Kamppi | 2020 | 5 |
| Aurum Film | — | 2015 | 6 |
| Australasian Films | — | — | 12 |
| Australian Broadcasting Corporation | Sydney | Juli 1983 | 26 |
| Australian Film Commission | — | 5 Mei 1975 | 7 |
| Australian Photo-Play Company | — | — | 3 |
| Australian Union Conference of Seventh-day Adventists | — | 2001 | 1 |
| Authentic Entertainment | Burbank | 2000 | — |
| Automat Pictures | Los Angeles | 2000 | — |
| Autour de Minuit | Paris | 2001 | — |
| Auvergne-Rhône-Alpes Cinéma | Pôle PIXEL | 1991 | 21 |
| Avala Film | Beograd | 15 Juli 1946 | 18 |
| Avant-Film | Oslo | 28 April 1959 | 1 |
| AVE | Marousi | 1982 | 3 |
| Ave Fenix Pictures Studios | Chicago, Los Angeles, Arizona | 2014 | 2 |
| Avenue B Productions | — | 2004 | 5 |
| Avex Entertainment | — | April 2007 | 1 |
| Avex Group | Izumi Garden Tower | 11 April 1988 | 2 |
| Avex Pictures | Tokyo | April 2014 | — |
| Avista Film | Munich | — | 2 |
| AVRO | Hilversum | 1923 | 9 |
| AXN | Coral Gables | 1997 | 2 |
| AXS TV | Denver | 2001 | 1 |
| Ay Yapım | Beşiktaş | 2005 | 5 |
| Aymara Films | Burbank | 2024 | 2 |
| Aywon Film Corporation | — | — | 1 |
| Azad Azerbaijan TV | Baku | 2000 | 1 |
| Azar Film | — | — | 1 |
| Azerbaijanfilm | Baku | 28 April 1923 | 98 |
| Aziani | — | 2005 | 1 |
| Azor Films | — | — | 2 |
| À Punt Mèdia | Burjassot | 5 April 2017 | 1 |