| Anthology With Cranes | | 山村 浩二 | 2011 | Nippon Animation | 2014 |
| Antithesis | | Kachi CHAN | 2017 | Nippon Visions | 2019 |
| Antonym | 螺旋銀河 | 草野なつか | 2014 | Nippon Visions | 2014 |
| Any Crybabies Around? | 泣く子はいねぇが | 佐藤快磨 | 2020 | Nippon Cinema | 2022, 2022 |
| Anywhere | | Lyota TAKAHASHI | 2018 | Nippon Animation | 2019 |
| Aoi Swimming: We Are Lumpen | | Mikio SAITO | 2018 | Nippon Visions | 2019 |
| Apartment | | Jun AOKI | 2004 | Nippon Digital | 2005 |
| Apparatus M | | Takashi ITO | 1996 | Nippon Retro | 2007 |
| Apple Colored Water | | Saeko AKAGI | | Nippon Digital | 2005 |
| Apple Computer Promo | | Sei HISHIKAWA @ Drawing + Manual Inc | | Nippon Digital | 2002 |
| Apple Humming | | Saeko AKAGI | | Nippon Digital | 2005 |
| Appleseed | | 荒牧伸志 | 2004 | Nippon Cinema | 2005 |
| Appleseed Alpha | アップルシード アルファ | 荒牧伸志 | 2014 | Nippon Animation | 2015 |
| Appleseed: Ex Machina | エクスマキナ | 荒牧伸志 | 2007 | Nippon Cinema | 2008 |
| Aquatic | | 山村 浩二 | 1987 | Nippon Digital | 2004 |
| Aragami | | 北村龍平 | 2002 | Nippon Cinema | 2004 |
| Arch Angels | | Issei ODA | 2006 | Nippon Cinema | 2007 |
| Arirang Rhapsody | アリラン ラプソディ〜海を越えたハルモニたち〜 | 金聖雄 | 2023 | Nippon Docs | 2024 |
| Aristocrats | あのこは貴族 | 岨手由貴子 | 2020 | Nippon Cinema | 2021 |
| Arita | | 岩井俊二 | 2002 | Nippon Cinema | 2004 |
