| Amaco Investments | — | — | 1 |
| Amateru | टोरीनो | 2018 | 1 |
| Ambassador Theatres | — | 2001 | 1 |
| Amber Films | — | 1968 | 1 |
| American Broadcasting-Paramount Theatres, Inc. | 1501 Broadway | 15 नवंबर 1949 | 1 |
| American Society of Civil Engineers | Reston | 1852 | 1 |
| Anatman Films | — | — | 1 |
| Andell Holdings | लॉस एंजेलिस | — | 1 |
| Animation Digital Network | पेरिस | सितंबर 2013 | 1 |
| Animax Entertainment | लॉस एंजेलिस | 26 अक्टूबर 2001 | 1 |
| Animoon | — | — | 1 |
| Annapurna Animation | High Ridge, North Stamford | दिसंबर 2022 | 1 |
| Anosi | कैलेंद्री | अक्टूबर 1987 | 1 |
| Antelope | — | — | 1 |
| Apocalypso Pictures | Boars Hill | — | 1 |
| Apple TV | — | नवंबर 2019 | 1 |
| AQS | प्राग | 27 मार्च 1998 | 1 |
| Aquarius Films | — | — | 1 |
| Arad Productions Inc. | — | — | 1 |
| Aragón TV | आरागोन | 2006 | 1 |
| Arcadia | — | — | 1 |
| Arcana Studio | कोक्वाल्टम | 2004 | 1 |
| Arcapix | — | — | 1 |
| Archaia Entertainment | हॉलीवुड | 2002 | 1 |
| Archant | नॉर्विच | 1845 | 1 |
| Arclight Films | सिडनी | 2002 | 1 |
| Argo Pictures | — | 14 फ़रवरी 1990 | 1 |
| Armadillo Film | ऐम्स्टर्डैम | 2001 | 1 |
| Army Pictorial Service | — | — | 1 |
| ARRAY | — | 2010 | 1 |
| Arrow-Film | ओस्लो | 1964 | 1 |
| Ars Media | — | — | 1 |
| Art Aia - La Dolce Berlin | — | — | 1 |
| Artbox | — | — | 1 |
| Artemis Films | मॉन्ट्रियल | — | 1 |
| Artis Film | बुख़ारेस्ट | — | 1 |
| Artist Studio | दक्षिण कोरिया | — | 1 |
| Artland | मुसाशीनो | 14 सितंबर 1978 | 1 |
| Arts Council of Wales | Wales Millennium Centre | 1946 | 1 |
| Artza Productions | — | 2006 | 1 |
| Asahi Broadcasting Group Holdings | ओसाका | 15 मार्च 1951 | 1 |
| Ascot Elite Entertainment Group | ज़्यूरिख़ | 1928 | 1 |
| Askania Media | बर्लिन | 1997 | 1 |
| Aspartame Jack | — | — | 1 |
| Aspekt Telefilm | हैम्बर्ग | 1974 | 1 |
| AST Studio | — | — | 1 |
| Atlântida Cinematográfica | रियो डि जेनेरो | 18 सितंबर 1941 | 1 |
| ATO Records | न्यूयॉर्क नगर | 2000 | 1 |