| Arrow-Film | Oslo | 1964 | 1 |
| Arsmedia | — | — | 1 |
| Art Aia - La Dolce Berlin | — | — | 1 |
| Art-O-Graf | — | 1919 | 1 |
| Artistfilm | — | — | 1 |
| Artland | Musashino | September 14, 1978 | 1 |
| Arts Council of Wales | Wales Millennium Centre | 1946 | 1 |
| Artza Productions | — | 2006 | 1 |
| Artédis | — | 1983 | 1 |
| 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 |
| Aspartame Jack | — | — | 1 |
| Aspekt Telefilm | Hamburg | 1974 | 1 |
| Association of Malayalam Movie Artists | — | — | 1 |
| AST Studio | — | — | 1 |
| Asymmetrical Productions | California | 1993 | 1 |
| Atlas Film Company | — | — | 1 |
| ATR | — | 2015 | 1 |
| Atria | — | 1953 | 1 |
| Attackers | Tokyo | 1996 | 1 |
| Attica Art Productions | Athens | — | 1 |
| August Entertainment | — | 1988 | 1 |
| Australian Film Institute | Melbourne | November 1958 | 1 |
| Australian Union Conference of Seventh-day Adventists | — | 2001 | 1 |
| Avalon Produkcija | — | — | 1 |
| Avant-Film | Oslo | April 28, 1959 | 1 |
| Avatar Studios | — | 2021 | 1 |
| Avex Entertainment | — | April 2007 | 1 |
| Avex Music Creative | Tokyo | October 1997 | 1 |
| Aywon Film Corporation | — | — | 1 |
| Azad Azerbaijan TV | Baku | 2000 | 1 |
| Azalea Producciones | — | — | 1 |
| Azar Film | — | — | 1 |
| B's International | Higashiyama | 1990 | 1 |
| B. A. Entertainment | — | — | 1 |
| B92 | Belgrade | 1989 | 1 |
| Baby Einstein | Atlanta | 1996 | 1 |
| Babyjane Productions | — | — | 1 |
| Babylon'13 | — | 2013 | 1 |
| Balboa 2 | Hvidovre | 1997 | 1 |
| Baldur Film | Seltjarnarnes | — | 1 |
| Balti Video | Tallinn | February 3, 1995 | 1 |
| Bang Bros | Miami | 2004 | 1 |
| Bang Zoom! Entertainment | Bang Zoom! Studios | 1993 | 1 |
| Bang! | — | — | 1 |
| Banijay Nordics | Sweden | — | 1 |