| A Band Apart | United States | 1991 | 2006 | 13 |
| A Contracorriente Films | Spain | November 16, 2017 | — | 14 |
| A Film Eesti | Estonia | 1994 | — | — |
| A Private View | Belgium | May 24, 1994 | — | 9 |
| A Stern Talking To | United States | — | — | 1 |
| A Very Good Production | United States | 2003 | — | 1 |
| A&E | United States | February 1984 | — | 2 |
| A&M Records | United States | 1962 | 1999 | 3 |
| A&o buero filmproduktion | Germany | — | — | 1 |
| A'YoY | Poland | 1994 | 2006 | 3 |
| A+E Global Media | United States | 1984 | — | 1 |
| A-1 Pictures | Japan | May 9, 2005 | — | 3 |
| A-Film | Netherlands | 1999 | — | 1 |
| A. Drankov & Co. | Russian Empire | 1907 | — | 3 |
| A. Film A/S | Denmark | 1988 | — | 20 |
| A.A. Les Films Belges | Belgium | — | — | 1 |
| A.GI.DI. | Italy | — | — | 2 |
| A/S Palladium | Denmark | 1919 | 2017 | 2 |
| A1Plus Film Production | Austria | — | — | — |
| A24 | United States | August 20, 2012 | — | 44 |
| AA Visioon Stuudio | Estonia | 1997 | — | — |
| Aafa-Film | Germany | 1918 | 1934 | 18 |
| Aalto University School of Arts, Design and Architecture | Finland | 1871 | — | 1 |
| Aamir Khan Productions | India | 1999 | — | 10 |
| Aamu Film Company | Finland | — | — | 9 |
| Aardman Animations | United Kingdom | April 12, 1972 | — | 17 |
| Aas Film | Pahlavi Iran | — | — | 8 |
| Aashirvad Cinemas | India | 2000 | — | 25 |
| Aattache Films | Netherlands | — | — | 1 |
| AB Bild & Ton | Sweden | — | — | 2 |
| AB Productions | France | 1977 | 1999 | — |
| AB Stockholmfilm | Sweden | 1937 | 1940 | 1 |
| AB Svensk Filminspelning | Sweden | 1922 | — | 2 |
| AB Svensk talfilm | Sweden | — | — | 16 |
| AB Svenska Ord | Sweden | 1961 | 1985 | 2 |
| AbbottVision | United Kingdom | 2008 | — | 2 |
| ABC Circle Films | United States | 1968 | 1989 | 2 |
| ABC Entertainment | United States | 1995 | — | 3 |
| ABC Family Worldwide | United States | 1990 | — | — |
| ABC News | United States | June 15, 1945 | — | 1 |
| ABC Signature | United States | March 21, 1985 | October 2024 | 3 |
| ABC Television Limited | United Kingdom | 1956 | — | — |
| ABC-Film | Norway | — | — | 3 |
| AbemaNews | Japan | April 2015 | — | — |
| AbemaTV | Japan | April 2015 | — | — |
| Abhishek Agarwal Arts | India | 2018 | — | 1 |
| Abhishek Pictures | India | 2014 | — | 3 |
| Abingdon Film Unit | United Kingdom | 2003 | — | — |
| ABKCO Records | United States | 1961 | — | 2 |
| Abominable Pictures | United States | 2006 | — | — |
| Aboriginal Peoples Television Network | Canada | January 21, 1992 | — | 1 |
| About Film | South Korea | — | — | 6 |
| Above Average Productions | — | — | — | 1 |
| ABS-CBN Corporation | Philippines | June 13, 1946 | — | 38 |
| ABS-CBN Film Productions | Philippines | — | — | 2 |
| ABS-CBN Studios | Philippines | 1962 | — | — |
| Absolute Entertainment | United States | 1986 | 1995 | 1 |
| Abu Dhabi Media | United Arab Emirates | 2007 | — | 1 |
| Abú Media | Ireland | 2000 | — | 1 |
| AC/E | Spain | April 30, 2010 | — | 1 |
| Academy Films | — | 1985 | — | 2 |
| Academy of Dramatic Art | Croatia | 1896 | — | 1 |
| Academy of Media Arts Cologne | Germany | 1990 | — | 1 |
| Academy of Theatre, Radio, Film and Television | Slovenia | 1945 | — | 1 |
| Acajou Films | France | May 26, 2005 | August 25, 2015 | 2 |
| Access Entertainment | United Kingdom | 2018 | — | 5 |
| Access Industries | United States | 1986 | — | 3 |
| Acció | Spain | 1989 | — | 1 |
| ACE FACTORY | South Korea | November 14, 2018 | — | — |
| Achab Film | Italy | — | — | 1 |
| Acropolis Entertainment | India | October 6, 2006 | — | 1 |
| Act Art Generation | Thailand | May 21, 2002 | — | 1 |
| Act III Broadcasting | — | 1986 | 1995 | 1 |
| Act III Communications | United States | 1985 | — | 1 |
| Act III Productions | — | — | — | 1 |
| Actas | Japan | July 6, 1998 | — | 1 |
| Action Concept | Germany | 1992 | — | — |
| Action International Pictures | United States | 1986 | — | 2 |
| Action Synthese | France | April 21, 1998 | — | 1 |
| Actors Studio | United States | October 5, 1947 | — | 1 |
| Acuba Film | Estonia | March 27, 1998 | — | 5 |
| Ad Vitam Distribution | France | 1998 | — | 1 |
| Adam & Eve | United States | March 1971 | — | 18 |
| Adam Film | Turkey | — | — | 1 |
| Adam's World Of Imagination | India | 2015 | — | 1 |
| Adams Filmi | Finland | 1912 | 1989 | 2 |
| Adastra Films | France | 2008 | — | 4 |
| Addict Films | Norway | — | — | 1 |
| Adel Productions | France | 1968 | 1988 | 6 |
| Adelaide Film Festival | Australia | 2002 | — | 1 |
| Adelaide Film Festival Investment Fund | Australia | — | — | 1 |
| Adelaide Productions | United States | 1993 | — | 1 |
| Adelphi Films | — | 1939 | 1956 | 3 |
| Adhadhu | Maldives | 2011 | — | 1 |
| ADK Holdings | Japan | March 19, 1956 | — | 3 |
| Adler Entertainment | Italy | — | — | 1 |
| Adness Entertainment | United States | 2007 | — | — |
| Adult Swim | United States | September 1999 | — | 3 |
| Adult Time | Canada | 2019 | — | 8 |
| Advanced Action Videos | United States | May 7, 2003 | March 25, 2011 | 1 |
| Advent Film Group | United States | 2007 | — | — |
| Adventure Line Productions | France | 1972 | — | — |
| AEG Live | — | — | — | 3 |
| Aegean Oil S.A. | Greece | — | — | 1 |
| Aes-Nihil Productions | United States | — | — | 1 |
| Aetios Productions | Canada | — | — | 1 |
| Affirm Films | United States | 2008 | — | 8 |
| Afghan Film | Afghanistan | 1968 | May 13, 2025 | 1 |
| AFI Conservatory | United States | 1969 | — | 1 |
| AFIFA | Germany | 1921 | 1956 | — |
| Africa Magic | South Africa | 2004 | — | 1 |
| African Film Productions | South Africa | 1915 | — | 1 |
| Afro-Centric Productions | United States | 1998 | — | — |
| AFS Film | Turkey | 1997 | — | 1 |
| After Dark Films | — | — | — | 10 |
| After the Wedding | United Kingdom | — | — | 1 |
| Agat Film & Cie | France | — | — | 5 |
| Agat Films & Cie – Ex Nihilo | France | June 30, 1986 | — | 30 |
| AGBO | United States | March 27, 2015 | — | 10 |
| AGedO | Italy | 1992 | — | 1 |
| Agencja Produkcji Filmowej | Poland | 1991 | — | 2 |
| Agenda Media | Germany | 2008 | June 30, 2015 | — |
| Aggregate Films | — | 2012 | — | 2 |
| Agitator | Norway | — | April 12, 2021 | 1 |
| Agnès b. | — | 1975 | — | 1 |
| Agora Films | Switzerland | 1999 | — | 1 |
| AGS Entertainment | — | 2006 | — | 22 |
| AGTV Productions | Chile | 2011 | — | — |
| Aho & Soldan | Finland | 1924 | — | — |
| Ahotsa.info | Spain | 2014 | — | 1 |
| AI Multimedia | United States | 2018 | — | 1 |
| Aim Rain Limited | United Kingdom | May 21, 1993 | — | 1 |
| Air Productions | France | 1993 | — | — |
| Ajay Devgn Films | India | 2000 | — | 13 |
| Ajiado | Japan | 1978 | — | 1 |
| Ajoz Films | France | 1981 | 2018 | — |
| Akanga Film Asia | Singapore | — | — | 1 |
| Akis Bado | Lithuania | 2019 | — | 1 |
| Akka Films | Switzerland | 2003 | — | 3 |
| AKOM | South Korea | 1985 | — | 1 |
| Akson Studio | Poland | — | — | 5 |
| Aksoy Film Production | Turkey | — | — | 2 |
| Akufen | Canada | — | — | 1 |
| Al Arabia Cinema Production & Distribution | Egypt | 2000 | — | 2 |
| Al Hayat Media Center | Islamic State | 2014 | — | 2 |
| Al Jazeera | Qatar | November 1996 | — | 3 |
| Al Jazeera Balkans | Bosnia and Herzegovina | 2011 | 2025 | 1 |
| Al Jazeera Documentary Channel | Qatar | 2007 | — | 1 |
| Ala Bianca Group S.r.l. | Italy | 1990 | — | 1 |
| Alan Landsburg Productions | United States | 1971 | 1994 | 1 |
| Alasti Kino | Estonia | 2009 | — | 5 |
| Alatas Films | Greece | — | — | 1 |
| Alba Sotorra Productions | Spain | — | — | 2 |
| Albachiara | Italy | — | — | 2 |
| Albafilm-Tirana | Albania | 1945 | — | 8 |
| Albanian General Vision | Albania | — | — | 1 |
| Albanian National Center of Cinematography | Albania | — | — | 1 |
| Albena Produccions | — | — | — | 1 |
| Albert Bonniers Förlag | Sweden | 1837 | — | 1 |
| Alberts Frères | Netherlands | 1899 | 1911 | — |
| Alchemy | United States | 2010 | June 30, 2016 | 3 |
| Alcon Entertainment | United States | 1997 | — | 32 |
| Alcove Entertainment | United Kingdom | 2005 | — | 2 |
| Aldo, Giovanni & Giacomo | Italy | — | — | 1 |
| ALEF Film & Media Group | Slovakia | 1997 | — | 1 |
| Aleph Producciones | — | — | — | 2 |
| Alert film | Norway | — | — | 1 |
| Alexander Nanau Production | Romania | — | — | 1 |
| Alexandra Film | Estonia | January 30, 2009 | — | 3 |
| Alexandros Film | Greece | — | — | 1 |
| Alfa Pictures | Spain | — | — | 1 |
| Algefa | Germany | 1936 | 1955 | 1 |
| Algerian Television Broadcasting | Algeria | — | — | 2 |
| Ali n' Productions | Morocco | — | — | 3 |
| Alia Film | Italy | — | — | 3 |
| Alice Films | — | — | — | 1 |
| Alien Films Entertainment | Romania | — | — | 1 |
| Alien Internet Services | Belgium | 2012 | — | 1 |
| Align | United States | — | — | 1 |
| All Things Comedy | United States | October 2012 | — | 1 |
| All Yours Film | Netherlands | — | — | 1 |
| All-Ukrainian Photo-Cinema Administration | Soviet Union | 1922 | 1930 | 19 |
| All3Media | United Kingdom | 2003 | July 9, 2026 | — |
| Allarts | Netherlands | — | — | 1 |
| Allary Film | Germany | 1984 | — | 1 |
| Allegro Film | Austria | — | — | 7 |
| Allen Media Group | United States | 1993 | — | — |
| Allfilm | Estonia | 1995 | — | 30 |
| Alliance Atlantis | Canada | 1998 | 2008 | 17 |
| Alliance Films | Canada | 2007 | 2013 | 15 |
| Allians Film | Sweden | — | — | 1 |
| Allianz-Film | Germany | — | — | — |
| Allied Artists International | United States | 1979 | — | — |
| Allied Filmmakers | United Kingdom | 1985 | — | 9 |
| Allied Stars Ltd | United Kingdom | — | — | 2 |
| Alligator Film | Norway | — | — | 1 |
| AllMusic | United States | 1991 | — | 1 |
| Alloy Entertainment | — | — | — | 7 |
| Allspark | United States | March 6, 2009 | October 9, 2020 | 6 |
| Allspark Pictures | — | May 2008 | 2020 | 1 |
| Alpha Films | France | — | — | 1 |
| Alpha France | France | 1966 | — | 4 |
| Alpha Group Company | People's Republic of China | 1993 | — | — |
| Alpha TV | Greece | January 26, 1996 | — | 1 |
| Alpha-i | Bangladesh | — | — | 1 |
| AlphaVille Pictures Copenhagen | Denmark | 2003 | — | 2 |
| Alquimia Cinema | Spain | — | — | 1 |
| Alta Films | Spain | — | — | 4 |
| Alta Loma Films | France | December 1999 | — | 1 |
| Alta Vista | Italy | — | — | 1 |
| Altamira Pictures | Japan | 1993 | — | 1 |
| AltaVista | United States | 1994 | July 8, 2013 | 2 |
| Altice Studio | — | — | — | 1 |
| Altitude Film | United Kingdom | 2012 | — | 4 |
| Alvernia Studios | Poland | — | — | 1 |
| AM Television | India | 2012 | — | 1 |
| Amaco Investments | Nigeria | — | — | 1 |
| Amal Neerad Productions | — | 2012 | — | 2 |
| Amalga | Canada | — | — | 2 |
| Amanah Surga Productions | Indonesia | — | — | 2 |
| Amania Films | Spain | 2012 | — | 3 |
| Amaru Entertainment | United States | 1997 | — | 1 |
| Amateru | Italy | 2018 | — | 1 |
| Amauta Films | Peru | April 1937 | 1940 | — |
| Amazon | United States | July 5, 1994 | — | 1 |
| Amazon MGM Studios | United States | 2010 | — | 38 |
| Amazon Prime Video | United States | September 7, 2006 | — | 7 |
| Amazone | Japan | April 1988 | April 2010 | — |
| Ambassador Theatres | Taiwan | 2001 | — | 1 |
| Amber Films | — | 1968 | — | 1 |
| Ambient Entertainment | Germany | October 11, 1999 | — | 1 |
| Amblimation | United Kingdom | May 1989 | 1997 | 3 |
| Amblin Entertainment | United States | 1981 | — | 95 |
| Amblin Partners | United States | December 16, 2015 | — | 11 |
| Amblin Television | United States | July 31, 1984 | — | 1 |
| AMC Networks International Southern Europe | Spain | July 8, 2014 | — | 1 |
| Amedia | Russia | February 21, 2002 | — | 7 |
| American Broadcasting Company | United States | October 12, 1943 | — | 26 |
| American Broadcasting-Paramount Theatres, Inc. | — | November 15, 1949 | July 24, 1989 | 1 |
| American Film Company | United States | 2008 | — | 2 |
| American Film Institute | United States | 1967 | — | 3 |
| American Film Manufacturing Company | United States | 1910 | 1921 | 39 |
| American Greetings | United States | 1906 | — | 2 |
| American International Pictures | United States | 1954 | 1980 | 70 |
| American Nurses Association | United States | 1896 | — | — |
| American Society of Civil Engineers | United States | 1852 | — | 1 |
| American Sports Network | United States | July 17, 2014 | — | — |
| American Zoetrope | United States | 1969 | — | 57 |
| AMG Entertainment | Japan | August 11, 2000 | — | 3 |
| Amicus Productions | United Kingdom | 1960 | 1980 | 23 |
| Amigos Creations | India | 1999 | — | 3 |
| Amiguetes Entertainment | Spain | 1994 | — | 4 |
| Amitabh Bachchan Corporation | India | 1995 | — | 3 |
| Amoros Producciones | — | 2006 | — | 2 |
| AMOS Pictures | United Kingdom | — | — | 1 |
| Amour Fou | Austria | — | — | 11 |
| Amrion | Estonia | 2003 | — | 9 |
| Amuse | Japan | October 16, 1977 | — | 3 |
| Anagram Produktion | Sweden | 2001 | — | 8 |
| Anagram Sverige | Sweden | August 3, 2004 | — | — |
| Anal Vids | Czech Republic | — | — | — |
| Anand Pandit Motion Pictures | India | — | — | 5 |
| Anatman Films | Indonesia | — | — | 1 |
| Anatman Pictures | Indonesia | 2013 | — | 5 |
| Anchor Bay Entertainment | United States | 1985 | 2017 | 2 |
| And Pictures | Japan | May 13, 2013 | — | 2 |
| Andell Holdings | — | — | — | 1 |
| ANDMARQ | South Korea | September 8, 2015 | — | 2 |
| Andscape | United States | — | — | 1 |
| Angel Digital Pvt Ltd | India | — | — | 1 |
| Angel Films | Denmark | 1988 | — | 1 |
| Angel Films | Finland | August 11, 2009 | — | 1 |
| Angels Broadcast Television | United States | 1985 | — | — |
| Anglo-Amalgamated | United Kingdom | 1942 | 1971 | 8 |
| Anglo-Hollandia | Netherlands | 1919 | — | 5 |
| Anhui Television | People's Republic of China | September 30, 1960 | — | 1 |
| Anima Vitae | Finland | March 6, 2000 | — | 2 |
| Animafilm | Romania | 1964 | — | 1 |
| Animagrad | Ukraine | 2012 | — | 2 |
| Animal Logic | Australia | 1991 | — | 8 |
| Animal Planet | United States | October 1996 | — | 1 |
| Animation Digital Network | France | September 2013 | — | 1 |
| Animax Entertainment | United States | October 26, 2001 | — | 1 |
| Anime International Company | Japan | 1982 | — | 2 |
| Animex | Mexico | 2000 | — | 4 |
| Animoon | Poland | — | — | 1 |
| Animose Studio | Russia | 1999 | — | — |
| Animācijas brigāde | Latvia | January 19, 1993 | — | 4 |
| Aniplex | Japan | September 1995 | — | 1 |
| Anita Stewart Productions | United States | 1917 | 1922 | 1 |
| Anjali Pictures | India | — | — | 5 |
| Anjana Productions | India | 1988 | — | 5 |
| Anka Film | Turkey | — | — | 1 |
| Ankush Hazra Motion Pictures | India | August 17, 2022 | — | 2 |
| Annapurna Animation | — | December 2022 | — | 1 |
| Annapurna Films | South Korea | — | — | 5 |
| Annapurna Pictures | United States | 2011 | — | 28 |
| Annapurna Studios | India | 1975 | — | 32 |
| Anonymous Content | United States | 1999 | — | 27 |
| Anosi | Greece | October 1987 | — | 1 |
| ANS Productions | Turkey | — | — | 3 |
| ANS TV | Azerbaijan | 1991 | July 18, 2016 | 1 |
| Antelope | United Kingdom | — | — | 1 |
| Antena 3 | Spain | December 25, 1989 | — | 13 |
| Antenne 2 | France | 1975 | September 6, 1992 | 3 |
| Anthology Studios | South Korea | November 17, 2020 | — | 1 |
| Anti-Corruption Foundation | Russia | September 9, 2011 | — | 4 |
| Antidote Films | — | — | — | 1 |
| Anurag Kashyap Films | — | 2009 | — | 7 |
| Anzervos | Greece | 1943 | 1969 | 13 |
| Anša Epnera studija AVE | Latvia | — | — | 2 |
| AOI Pro. | Japan | October 25, 1963 | — | 2 |
| AP Films | United Kingdom | 1957 | 1966 | 1 |
| Apatow Productions | United States | 1999 | — | 25 |
| Aperture Entertainment | United States | 2009 | — | 3 |
| Apocalypso Pictures | Poland | — | — | 1 |
| Apollo Film Productions | Estonia | July 5, 2017 | — | 14 |
| Apollo Pictures | United States | 1917 | — | — |
| Apologetics Press | United States | 1979 | — | 1 |
| Appaloosa Films | — | 2009 | — | 4 |
| Appalshop | United States | 1969 | — | 2 |
| Apparition | United States | August 6, 2009 | September 26, 2010 | 2 |
| Appetite Production | Poland | 2008 | — | — |
| Appian Way | Italy | 311 BC | — | 1 |
| Appian Way Productions | United States | 2004 | — | 14 |
| Applause Entertainment | India | — | — | 3 |
| Apple Corps | United Kingdom | 1967 | — | 2 |
| Apple Film Production | Poland | 1990 | — | 1 |
| Apple Original Films | United States | — | — | 3 |
| Apple TV | United States | November 2019 | — | 1 |
| Applecross peninsula | United Kingdom | — | — | 1 |
| APPP | Japan | 1984 | — | 3 |
| Aprilfilm | Norway | — | — | 3 |
| AQS | Czech Republic | March 27, 1998 | — | 1 |
| Aquarius Films | Australia | 2008 | — | 2 |
| Aquarius Films | Australia | — | — | 1 |
| Aquila Films | Italy | 1907 | — | 2 |
| Aquí y Allí Films | — | 2010 | — | 9 |
| Ara-Film | Norway | — | — | 10 |
| Araba Films | Spain | — | — | — |
| Arad Productions Inc. | United States | — | — | 1 |
| Aragón TV | Spain | 2006 | — | 1 |
| Arc Media | South Korea | — | — | 1 |
| Arca-Winston Films Corp. | Germany | — | — | 1 |
| Arcadia | Estonia | — | — | 1 |
| Arcadia Motion Pictures | Spain | 2004 | — | 19 |
| Arcana Studio | Canada | 2004 | — | 1 |
| Arcapix | France | — | — | 1 |
| Archaia Entertainment | United States | 2002 | — | 1 |
| Archant | — | 1845 | — | 1 |
| Archdiocese of Caceres | Philippines | June 29, 1951 | — | 1 |
| Archer Street | United Kingdom | — | — | 1 |
| Archie Comics | United States | 1939 | — | 1 |
| Archipel 33 | France | 1988 | — | 2 |
| Archipel 35 | France | — | — | 6 |
| Arclight Films | Australia | 2002 | — | 1 |
| Arco Film | Italy | 1960 | — | 10 |
| Arctandriafilm | Norway | — | — | 1 |
| Ardmore Studios | Ireland | — | — | 2 |
| Arena Films | France | — | — | 6 |
| Arena Synchron | Germany | 1972 | — | — |
| Argentina Sono Film | Argentina | 1933 | — | 114 |
| Argo Pictures | Japan | February 14, 1990 | — | 1 |
| Argonauts Productions | Greece | 2003 | — | 4 |
| Argonon | United Kingdom | 2011 | — | — |
| Argos Comunicación | Mexico | 1992 | — | 4 |
| Argos Films | France | 1949 | — | 16 |
| Argosy Films | Australia | — | — | 2 |
| Argosy Pictures | United States | 1939 | 1956 | 2 |
| Argus Film Produktie | Netherlands | — | — | 1 |
| Aries Cinematográfica Argentina | Argentina | 1956 | — | 43 |
| Ark Resources Entertainment | Nigeria | 2002 | — | 1 |
| Arka Media Works | India | 2001 | — | 4 |
| Arlong Productions | Spain | — | — | 2 |
| Armadillo Film | Netherlands | 2001 | — | 1 |
| Armenakob | Armenia | October 5, 2000 | April 24, 2009 | — |
| Armenfilm | Armenian Soviet Socialist Republic | April 16, 1923 | — | 94 |
| Armenia 1 | Armenia | November 29, 1956 | — | 1 |
| Army Pictorial Service | United States | — | — | 1 |
| Arnljot Berg Filmproduksjon | Norway | 1966 | — | 2 |
| ARP Sélection | France | January 20, 1984 | — | 6 |
| Arpa Films | Spain | — | — | 1 |
| ARRAY | — | 2010 | — | 1 |
| Arrow Films | — | — | — | 1 |
| Arrow Productions | United States | — | — | 2 |
| Arrow-Film | Norway | 1964 | — | 1 |
| Ars Media | Slovakia | — | — | 1 |
| Arsenal | Germany | 1975 | — | — |
| Arsmedia | Slovenia | — | — | 1 |
| Art & Industry | United States | 2004 | — | 2 |
| Art Aia - La Dolce Berlin | Germany | — | — | 1 |
| Art Aia-Creatives / In / Residence | Italy | — | — | 1 |
| Art et essai | — | — | — | 6 |
| Art film 80 | Federal Republic of Yugoslavia | 1980 | — | 2 |
| Art for The World | — | 1995 | — | 1 |
| Art Institute of Chicago | United States | 1879 | — | 1 |
| Art Pictures Studio | Russia | 1992 | — | 17 |
| Art Port | Japan | October 1990 | — | 4 |
| Art Theatre Guild | Japan | 1961 | — | 11 |
| Art-O-Graf | United States | 1919 | — | 1 |
| Artbox | Iceland | — | — | 1 |
| Arte | Germany | — | — | 76 |
| Arte France | France | June 2, 1986 | — | 43 |
| Arte France Cinéma | France | August 30, 1991 | — | 89 |
| Arte Radiotelevisivo Argentino | Argentina | December 22, 1989 | — | 4 |
| Artemis Films | Canada | — | — | 1 |
| Artfilm | Sweden | — | — | 10 |
| Arthouse Traffic | Ukraine | 2003 | — | — |
| Artis Film | Romania | — | — | 1 |
| Artisan Entertainment | United States | 1982 | 2004 | 20 |
| Artist Company | South Korea | 2016 | — | — |
| Artist Studio | South Korea | — | — | 1 |
| Artista Filmi | Finland | 1995 | — | 9 |
| Artistfilm | Sweden | — | — | 1 |
| Artists Equity | United States | 2022 | — | 5 |
| Artland | Japan | September 14, 1978 | 2015 | 1 |
| Arts Council England | United Kingdom | 1994 | — | 8 |
| Arts Council of Great Britain | United Kingdom | 1940 | — | 2 |
| Arts Council of Wales | United Kingdom | 1946 | — | 1 |
| Artza Productions | Israel | 2006 | — | 1 |
| Artédis | France | 1983 | — | 1 |
| Artémis Productions | Belgium | 1994 | — | 11 |
| ARY Digital Network | Pakistan | 2000 | — | — |
| ARY Films | — | — | — | 2 |
| Aryana Film | Pahlavi Iran | — | — | 12 |
| Arzu Film | Turkey | — | — | 33 |
| As Films Producción | Spain | — | — | 1 |
| As-Sahab | Pakistan | 2001 | — | 2 |
| ASA Film | Denmark | 1936 | — | 1 |
| ASA Film Production | Denmark | July 25, 1994 | — | 3 |
| Asahi Broadcasting Group Holdings | Japan | March 15, 1951 | — | 1 |
| Ascot Elite Entertainment Group | Germany | 1928 | — | 1 |
| Ashmont Productions | United States | 1965 | 1976 | — |
| Aska Film Productions | Slovakia | — | — | 5 |
| Askania Media | Germany | 1997 | — | 1 |
| Asmik Ace Entertainment | Japan | 1985 | — | 7 |
| Aspartame Jack | Canada | — | — | 1 |
| Aspekt Telefilm | Germany | 1974 | — | 1 |
| Aspide 1 UG | Germany | — | — | 1 |
| Asre Talaei Studio | Iran | 1951 | — | 27 |
| Assemblage Entertainment | — | December 2013 | — | 2 |
| Associate Directors | Belgium | 1991 | — | — |
| Associated Argentine Artists | Argentina | 1941 | — | 14 |
| Associated British Picture Corporation | United Kingdom | 1928 | 1970 | 173 |
| Associated Exhibitors | — | — | 1926 | 2 |
| Associated Talking Pictures | United Kingdom | — | — | 2 |
| Associated-Rediffusion | United Kingdom | September 22, 1955 | — | 1 |
| Association coopérative de productions audio-visuelles | Canada | February 6, 1971 | — | 40 |
| Association of Malayalam Movie Artists | India | — | — | 1 |
| AST Studio | Japan | — | — | 1 |
| Asta Film | Denmark | December 2002 | — | 3 |
| Astor Pictures | United States | 1930 | 1963 | 1 |
| AStory | South Korea | 2004 | — | 2 |
| Astral Media | Canada | 1961 | July 5, 2013 | 6 |
| Astrid Lindgren's World | Sweden | 1981 | — | 3 |
| Astro Shaw | Malaysia | 2005 | — | 8 |
| Astron-6 | Canada | 2007 | — | 3 |
| Asymmetrical Productions | United States | 1993 | — | 1 |
| AT&T SportsNet Pittsburgh | United States | 1986 | — | — |
| AT&T SportsNet Rocky Mountain | United States | 1988 | — | — |
| AT-Prod | Belgium | 1994 | — | 1 |
| Athenaeum Productions | United Kingdom | 2017 | — | 2 |
| Atlantic Entertainment Group | United States | 1974 | 1989 | 4 |
| Atlantique Productions | France | 1982 | — | — |
| Atlas Entertainment | United States | 1995 | — | 15 |
| Atlas Film | Iran | — | — | 12 |
| Atlas Film Company | United States | — | — | 1 |
| Atlasley | Spain | 2006 | — | 3 |
| Atlântida Cinematográfica | Brazil | September 18, 1941 | — | 1 |
| Atmo Media Network | Sweden | 1999 | — | 3 |
| Atmo Produktion | Sweden | — | — | 2 |
| ATNINE FILM | South Korea | May 22, 1996 | — | — |
| ATO Records | United States | 2000 | — | 1 |
| Atomfilm | Norway | — | August 4, 2025 | 1 |
| Atomic Monster | — | 2014 | — | 18 |
| Atopia | Canada | 2000 | — | 2 |
| ATR | Ukraine | 2015 | — | 1 |
| Atresmedia | Spain | 1989 | — | 7 |
| Atresmedia Cine | Spain | November 2000 | — | 52 |
| Atria | — | 1953 | 1998 | 1 |
| Attackers | Japan | 1996 | — | 1 |
| Attica Art Productions | Greece | — | — | 1 |
| Attraction | Canada | 2002 | — | 3 |
| Attraction Images | Canada | 2002 | — | — |
| ATV | United Kingdom | September 24, 1955 | — | — |
| ATV | Russia | September 15, 1988 | — | — |
| Atípica Films | — | — | — | 7 |
| Audax Films | — | 2013 | — | 1 |
| Audiovision | — | 2002 | — | 3 |
| Audiovisual Archive of the Democratic and Labour Movement | Italy | — | — | 1 |
| August Cinema | — | 2011 | — | 8 |
| August Entertainment | United States | 1988 | — | 1 |
| August First Film Studio | People's Republic of China | 1952 | — | 35 |
| Augustus Film | Netherlands | — | — | 1 |
| Aura Films | United Kingdom | — | — | 2 |
| Aurora Film Corporation | India | 1906 | — | 3 |
| Aurora Productions | United States | 1978 | — | 6 |
| Aurora Studios | Finland | 2020 | — | 5 |
| Aurum Film | Poland | 2015 | — | 6 |
| Austral-American Productions | Australia | — | — | 2 |
| Australasian Films | Australia | — | — | 12 |
| Australian Broadcasting Corporation | Australia | July 1983 | — | 26 |
| Australian Children's Television Foundation | Australia | 1982 | — | 1 |
| Australian Film Commission | Australia | May 5, 1975 | July 2008 | 7 |
| Australian Film Development Corporation | Australia | August 17, 1970 | July 8, 1975 | — |
| Australian Film Finance Corporation Limited | Australia | July 1988 | July 2008 | 14 |
| Australian Film Institute | Australia | November 1958 | — | 1 |
| Australian Film Syndicate | Australia | — | — | 2 |
| Australian International Film Corporation | Australia | — | — | 3 |
| Australian Life Biograph Company | Australia | 1911 | — | 1 |
| Australian Photo-Play Company | Australia | — | — | 3 |
| Australian Union Conference of Seventh-day Adventists | Australia | 2001 | — | 1 |
| Authentic Entertainment | United States | 2000 | January 31, 2025 | — |
| Automat Pictures | United States | 2000 | — | — |
| Automatic Vaudeville Studios | Canada | 1998 | — | — |
| Autour de Minuit | France | 2001 | — | — |
| Auvergne-Rhône-Alpes Cinéma | France | 1991 | — | 21 |
| AVA Productions | India | 2012 | — | — |
| Avala Film | Serbia | July 15, 1946 | — | 18 |
| Avalon Produkcija | North Macedonia | — | — | 1 |
| Avant-Film | Norway | April 28, 1959 | — | 1 |
| Avatar Studios | — | 2021 | — | 1 |
| Avaton Films | Greece | 2017 | — | 1 |
| AVE | — | 1982 | — | 3 |
| Ave Fenix Pictures Studios | Mexico | 2014 | — | 2 |
| Avenue B Productions | France | 2004 | — | 5 |
| Avex Entertainment | Japan | April 2007 | 2014 | 1 |
| Avex Group | Japan | April 11, 1988 | — | 2 |
| Avex Music Creative | Japan | October 1997 | — | 1 |
| Avex Pictures | Japan | April 2014 | — | — |
| Avista Film | Germany | — | — | 2 |
| AVM Productions | India | 1945 | — | 60 |
| AVRO | Netherlands | 1923 | 2014 | 9 |
| Avventura Films | France | — | — | 2 |
| Avşar Film | Turkey | — | — | 6 |
| Awesomeness | United States | 2012 | — | 4 |
| AXN | United States | 1997 | — | 2 |
| AXS TV | United States | 2001 | — | 1 |
| Ay Yapım | Turkey | 2005 | — | 5 |
| Aymara Films | United States | 2024 | — | 2 |
| Ayngaran International | United Kingdom | 1987 | — | 8 |
| Aywon Film Corporation | United States | — | — | 1 |
| Azad Azerbaijan TV | Azerbaijan | 2000 | — | 1 |
| Azalea Producciones | Spain | — | — | 1 |
| Azar Film | Pahlavi Iran | — | — | 1 |
| Azerbaijan State Film Fund | Azerbaijan | December 22, 1993 | — | — |
| Azerbaijanfilm | Azerbaijan | April 28, 1923 | — | 98 |
| Azhir Film | Pahlavi Iran | — | — | 11 |
| Aziani | United States | 2005 | — | 1 |
| Azor Films | France | — | — | 2 |
| AzTV | Azerbaijan | February 14, 1956 | — | 6 |
| À Punt Mèdia | Spain | April 5, 2017 | June 27, 2024 | 1 |
| Ánima Estudios | Mexico | 2002 | — | 8 |