| A Private View | Ghent | May 24, 1994 | 9 |
| A Very Good Production | United States | 2003 | 1 |
| A&o buero filmproduktion | Cologne | — | 1 |
| A. Film A/S | Copenhagen | 1988 | 20 |
| A.A. Les Films Belges | — | — | 1 |
| A.GI.DI. | — | — | 2 |
| A1Plus Film Production | Vienna | — | — |
| AA Visioon Stuudio | — | 1997 | — |
| Aafa-Film | Berlin | 1918 | 18 |
| Aardman Animations | Bristol | April 12, 1972 | 17 |
| Aattache Films | — | — | 1 |
| AB Bild & Ton | — | — | 2 |
| AB Productions | Saint-Denis | 1977 | — |
| AB Stockholmfilm | — | 1937 | 1 |
| AB Svensk Filminspelning | — | 1922 | 2 |
| AB Svensk talfilm | — | — | 16 |
| ABC Circle Films | — | 1968 | 2 |
| ABC Television Limited | London | 1956 | — |
| ABC-Film | — | — | 3 |
| AbemaNews | Tokyo | April 2015 | — |
| AbemaTV | Udagawachō, Maruyamachō, Shinsenchō | April 2015 | — |
| Abhishek Pictures | Hyderabad | 2014 | 3 |
| Abingdon Film Unit | Abingdon-on-Thames | 2003 | — |
| ABS-CBN Corporation | Quezon City | June 13, 1946 | 38 |
| ABS-CBN Film Productions | — | — | 2 |
| ABS-CBN Studios | Diliman | 1962 | — |
| Academy Films | London | 1985 | 2 |
| Academy of Dramatic Art | Zagreb | 1896 | 1 |
| Access Industries | New York City | 1986 | 3 |
| Acropolis Entertainment | — | October 6, 2006 | 1 |
| Act III Productions | — | — | 1 |
| Actas | Mitaka | July 6, 1998 | 1 |
| Action International Pictures | Culver City | 1986 | 2 |
| Action Synthese | — | April 21, 1998 | 1 |
| Actors Studio | New York City | October 5, 1947 | 1 |
| Acuba Film | Tallinn | March 27, 1998 | 5 |
| Adam & Eve | Hillsborough | March 1971 | 18 |
| Adam Film | — | — | 1 |
| Adam's World Of Imagination | Kerala | 2015 | 1 |
| Adams Filmi | Helsinki | 1912 | 2 |
| Adastra Films | Cannes | 2008 | 4 |
| Adelaide Film Festival | Glenside | 2002 | 1 |
| Adelaide Productions | Culver City | 1993 | 1 |
| Adler Entertainment | — | — | 1 |
| Adult Time | Montreal | 2019 | 8 |
| Advanced Action Videos | Redding | May 7, 2003 | 1 |
| Advent Film Group | Purcellville | 2007 | — |
| AEG Live | Los Angeles | — | 3 |
| Aegean Oil S.A. | — | — | 1 |
| Aes-Nihil Productions | — | — | 1 |
| Aetios Productions | Saint-Sauveur | — | 1 |
| Affirm Films | Culver City | 2008 | 8 |
| Afghan Film | — | 1968 | 1 |
| AFIFA | Wiesbaden | 1921 | — |
| Afro-Centric Productions | Boston | 1998 | — |
| After Dark Films | Los Angeles | — | 10 |
| After Dark Video | — | — | 1 |
| After the Wedding | — | — | 1 |
| Agat Film & Cie | Paris | — | 5 |
| Agencja Produkcji Filmowej | — | 1991 | 2 |
| Agenda Media | Hamburg, Lauenburg/Elbe | 2008 | — |
| AGS Entertainment | Chennai | 2006 | 22 |
| Aho & Soldan | — | 1924 | — |
| AI Multimedia | Nashville | 2018 | 1 |
| Aim Rain Limited | Middlesex | May 21, 1993 | 1 |
| Ajiado | Saitama | 1978 | 1 |
| Ajoz Films | Saint-Denis | 1981 | — |
| Akanga Film Asia | — | — | 1 |
| Akson Studio | — | — | 5 |
| Al Arabia Cinema Production & Distribution | Giza | 2000 | 2 |
| Al Jazeera Balkans | Sarajevo | 2011 | 1 |
| Al Jazeera Documentary Channel | — | 2007 | 1 |
| Ala Bianca Group S.r.l. | Modena | 1990 | 1 |
| Alba Sotorra Productions | — | — | 2 |
| Albachiara | — | — | 2 |
| Albanian General Vision | — | — | 1 |
| Albanian National Center of Cinematography | — | — | 1 |
| Alchemy | Los Angeles | 2010 | 3 |
| Alcove Entertainment | London | 2005 | 2 |
| Aldo, Giovanni & Giacomo | — | — | 1 |
| ALEF Film & Media Group | Bratislava | 1997 | 1 |
| Aleph Producciones | Buenos Aires | — | 2 |
| Alexandra Film | Tallinn | January 30, 2009 | 3 |
| Alexandros Film | — | — | 1 |
| Algefa | Berlin | 1936 | 1 |
| Alia Film | — | — | 3 |
| Alien Films Entertainment | — | — | 1 |
| All Yours Film | — | — | 1 |
| Allegro Film | Vienna | — | 7 |
| Allen Media Group | Los Angeles | 1993 | — |
| Allied Artists International | Los Angeles | 1979 | — |
| Allied Stars Ltd | — | — | 2 |
| Alligator Film | — | — | 1 |
| AllMusic | — | 1991 | 1 |
| Allspark | Burbank | March 6, 2009 | 6 |
| Alpha Films | — | — | 1 |
| Alta Loma Films | — | December 1999 | 1 |
| Alta Vista | — | — | 1 |
| Altamira Pictures | — | 1993 | 1 |
| Altitude Film | — | 2012 | 4 |
| Alvernia Studios | — | — | 1 |
| Amaco Investments | — | — | 1 |
| Amal Neerad Productions | Ernakulam | 2012 | 2 |
| Amalga | Montreal | — | 2 |
| Amanah Surga Productions | — | — | 2 |
| Amania Films | Vitoria-Gasteiz | 2012 | 3 |
| Amaru Entertainment | Atlanta | 1997 | 1 |
| Amazon MGM Studios | Culver City | 2010 | 38 |
| Amazon Prime Video | United States | September 7, 2006 | 7 |
| Amazone | — | April 1988 | — |
| Ambient Entertainment | Hanover | October 11, 1999 | 1 |
| Amblimation | London | May 1989 | 3 |
| Amblin Partners | Universal City | December 16, 2015 | 11 |
| Amblin Television | Universal City | July 31, 1984 | 1 |
| AMC Networks International Southern Europe | Madrid | July 8, 2014 | 1 |
| Amedia | Novoostapovskaya street, Moscow | February 21, 2002 | 7 |
| American Broadcasting-Paramount Theatres, Inc. | 1501 Broadway | November 15, 1949 | 1 |
| American Film Institute | Los Angeles | 1967 | 3 |
| American Film Manufacturing Company | Chicago | 1910 | 39 |
| American International Pictures | Los Angeles | 1954 | 70 |
| American Sports Network | West Palm Beach | July 17, 2014 | — |
| American Zoetrope | San Francisco | 1969 | 57 |
| AMG Entertainment | — | August 11, 2000 | 3 |
| Amicus Productions | Shepperton | 1960 | 23 |
| Amigos Creations | Hyderabad | 1999 | 3 |
| Amitabh Bachchan Corporation | Mumbai | 1995 | 3 |
| Amuse | Fujikawaguchiko, Sakuragaokachō | October 16, 1977 | 3 |
| Anagram Produktion | Lund | 2001 | 8 |
| Anal Vids | Prague | — | — |
| Anatman Pictures | — | 2013 | 5 |
| Anchor Bay Entertainment | Beverly Hills | 1985 | 2 |
| And Pictures | Ebisu-Minami | May 13, 2013 | 2 |
| Andell Holdings | Los Angeles | — | 1 |
| ANDMARQ | — | September 8, 2015 | 2 |
| Angel Digital Pvt Ltd | — | — | 1 |
| Angel Films | Copenhagen | 1988 | 1 |
| Angel Films | Helsinki | August 11, 2009 | 1 |
| Angels Broadcast Television | Los Angeles | 1985 | — |
| Anglo-Amalgamated | United Kingdom | 1942 | 8 |
| Anhui Television | — | September 30, 1960 | 1 |
| Animafilm | Sector 3 | 1964 | 1 |
| Animation Digital Network | Paris | September 2013 | 1 |
| Anime International Company | Nerima | 1982 | 2 |
| Animex | Puebla | 2000 | 4 |
| Animoon | — | — | 1 |
| Animācijas brigāde | Riga | January 19, 1993 | 4 |
| Anita Stewart Productions | — | 1917 | 1 |
| Annapurna Animation | High Ridge, North Stamford | December 2022 | 1 |
| Annapurna Films | — | — | 5 |
| Annapurna Pictures | Los Angeles | 2011 | 28 |
| Annapurna Studios | Hyderabad | 1975 | 32 |
| ANS TV | Baku | 1991 | 1 |
| Antena 3 | Madrid | December 25, 1989 | 13 |
| Antenne 2 | — | 1975 | 3 |
| Anthology Studios | — | November 17, 2020 | 1 |
| Antidote Films | New York City | — | 1 |
| Anurag Kashyap Films | Mumbai | 2009 | 7 |
| Anša Epnera studija AVE | — | — | 2 |
| AOI Pro. | Tokyo | October 25, 1963 | 2 |
| Apatow Productions | Los Angeles | 1999 | 25 |
| Aperture Entertainment | — | 2009 | 3 |
| Apocalypso Pictures | Boars Hill | — | 1 |
| Apollo Film Productions | Tänassilma | July 5, 2017 | 14 |
| Apollo Pictures | New York | 1917 | — |
| Apologetics Press | Montgomery | 1979 | 1 |
| Appalshop | — | 1969 | 2 |
| Appetite Production | — | 2008 | — |
| Apple Film Production | Warsaw | 1990 | 1 |
| Applecross peninsula | — | — | 1 |
| APPP | Suginami | 1984 | 3 |
| AQS | Prague | March 27, 1998 | 1 |
| Aquarius Films | Sydney | 2008 | 2 |
| Aquila Films | Italy | 1907 | 2 |
| Aquí y Allí Films | Madrid | 2010 | 9 |
| Araba Films | Vitoria-Gasteiz | — | — |
| Arad Productions Inc. | — | — | 1 |
| Aragón TV | Aragon | 2006 | 1 |
| Arc Media | — | — | 1 |
| Arca-Winston Films Corp. | — | — | 1 |
| Arcadia Motion Pictures | Barcelona | 2004 | 19 |
| Arcapix | — | — | 1 |
| Archaia Entertainment | Hollywood | 2002 | 1 |
| Archant | Norwich | 1845 | 1 |
| Archdiocese of Caceres | — | June 29, 1951 | 1 |
| Archer Street | London | — | 1 |
| Archie Comics | New York, Pelham | 1939 | 1 |
| Archipel 33 | Paris | 1988 | 2 |
| Arclight Films | Sydney | 2002 | 1 |
| Arco Film | Rome | 1960 | 10 |
| Arctandriafilm | — | — | 1 |
| Argo Pictures | — | February 14, 1990 | 1 |
| Argonauts Productions | Athens | 2003 | 4 |
| Argonon | London | 2011 | — |
| Argos Comunicación | — | 1992 | 4 |
| Argos Films | — | 1949 | 16 |
| Ark Resources Entertainment | — | 2002 | 1 |
| Arka Media Works | — | 2001 | 4 |
| Arlong Productions | Barcelona | — | 2 |
| Armadillo Film | Amsterdam | 2001 | 1 |
| Armenakob | — | October 5, 2000 | — |
| Armenfilm | Armenia | April 16, 1923 | 94 |
| Armenia 1 | Yerevan | November 29, 1956 | 1 |
| Army Pictorial Service | — | — | 1 |
| Arnljot Berg Filmproduksjon | Oslo | 1966 | 2 |
| ARP Sélection | Paris | January 20, 1984 | 6 |
| Arpa Films | Barcelona | — | 1 |
| ARRAY | — | 2010 | 1 |
| Arrow Productions | — | — | 2 |
| Arrow-Film | Oslo | 1964 | 1 |
| Arsmedia | — | — | 1 |
| Art Aia - La Dolce Berlin | — | — | 1 |
| Art et essai | Montreal | — | 6 |
| Art film 80 | Belgrade | 1980 | 2 |
| Art-O-Graf | — | 1919 | 1 |
| Arte France Cinéma | Issy-les-Moulineaux | August 30, 1991 | 89 |
| Artfilm | Stockholm | — | 10 |
| Artist Company | Seoul | 2016 | — |
| Artista Filmi | — | 1995 | 9 |
| Artistfilm | — | — | 1 |
| Artists Equity | — | 2022 | 5 |
| Artland | Musashino | September 14, 1978 | 1 |
| Arts Council England | — | 1994 | 8 |
| Arts Council of Wales | Wales Millennium Centre | 1946 | 1 |
| Artza Productions | — | 2006 | 1 |
| Artédis | — | 1983 | 1 |
| Aryana Film | — | — | 12 |
| Arzu Film | — | — | 33 |
| As Films Producción | — | — | 1 |
| ASA Film | Copenhagen | 1936 | 1 |
| Asahi Broadcasting Group Holdings | Osaka | March 15, 1951 | 1 |
| Ascot Elite Entertainment Group | Zurich | 1928 | 1 |
| Aska Film Productions | — | — | 5 |
| Asmik Ace Entertainment | Tokyo, Frederikshavn | 1985 | 7 |
| Aspartame Jack | — | — | 1 |
| Aspekt Telefilm | Hamburg | 1974 | 1 |
| Assemblage Entertainment | Mumbai | December 2013 | 2 |
| Associate Directors | — | 1991 | — |
| Associated Argentine Artists | — | 1941 | 14 |
| Associated British Picture Corporation | London | 1928 | 173 |
| Associated Exhibitors | New York City | — | 2 |
| Associated Talking Pictures | — | — | 2 |
| Association coopérative de productions audio-visuelles | Montreal | February 6, 1971 | 40 |
| Association of Malayalam Movie Artists | — | — | 1 |
| AST Studio | — | — | 1 |
| AStory | Seoul | 2004 | 2 |
| Asymmetrical Productions | California | 1993 | 1 |
| Atlantic Entertainment Group | United States | 1974 | 4 |
| Atlantique Productions | Paris | 1982 | — |
| Atlas Film | — | — | 12 |
| Atlas Film Company | — | — | 1 |
| Atmo Produktion | Stockholm | — | 2 |
| ATNINE FILM | — | May 22, 1996 | — |
| Atomic Monster | United States | 2014 | 18 |
| Atopia | Montreal | 2000 | 2 |
| ATR | — | 2015 | 1 |
| Atresmedia | San Sebastián de los Reyes | 1989 | 7 |
| Atresmedia Cine | San Sebastián de los Reyes | November 2000 | 52 |
| Atria | — | 1953 | 1 |
| Attackers | Tokyo | 1996 | 1 |
| Attica Art Productions | Athens | — | 1 |
| Attraction | — | 2002 | 3 |
| Atípica Films | Madrid | — | 7 |
| August Entertainment | — | 1988 | 1 |
| August First Film Studio | Beijing | 1952 | 35 |
| Aurora Film Corporation | Kolkata | 1906 | 3 |
| Aurora Studios | Kamppi | 2020 | 5 |
| Aurum Film | — | 2015 | 6 |
| Australian Broadcasting Corporation | Sydney | July 1983 | 26 |
| Australian Film Institute | Melbourne | November 1958 | 1 |
| Australian Film Syndicate | — | — | 2 |
| Australian Photo-Play Company | — | — | 3 |
| Australian Union Conference of Seventh-day Adventists | — | 2001 | 1 |
| Automat Pictures | Los Angeles | 2000 | — |
| Automatic Vaudeville Studios | — | 1998 | — |
| Autour de Minuit | Paris | 2001 | — |
| AVA Productions | — | 2012 | — |
| Avala Film | Belgrade | July 15, 1946 | 18 |
| Avalon Produkcija | — | — | 1 |
| Avant-Film | Oslo | April 28, 1959 | 1 |
| Avatar Studios | — | 2021 | 1 |
| Ave Fenix Pictures Studios | Chicago, Los Angeles, Arizona | 2014 | 2 |
| Avenue B Productions | — | 2004 | 5 |
| Avex Entertainment | — | April 2007 | 1 |
| Avex Music Creative | Tokyo | October 1997 | 1 |
| Avista Film | Munich | — | 2 |
| Avventura Films | — | — | 2 |
| Awesomeness | Los Angeles | 2012 | 4 |
| AXN | Coral Gables | 1997 | 2 |
| Ayngaran International | London | 1987 | 8 |
| Aywon Film Corporation | — | — | 1 |
| Azad Azerbaijan TV | Baku | 2000 | 1 |
| Azalea Producciones | — | — | 1 |
| Azar Film | — | — | 1 |
| Azerbaijan State Film Fund | Baku | December 22, 1993 | — |
| Azerbaijanfilm | Baku | April 28, 1923 | 98 |
| Azor Films | — | — | 2 |
| À Punt Mèdia | Burjassot | April 5, 2017 | 1 |
| Ánima Estudios | Mexico City | 2002 | 8 |