Music Publisher / Manufacturer
- Gentosha Education
- Gentosha Media
- Gentosha Media Consulting
- Gentosha Renaissance
- Gift
- Giza Studio
- God of Arts
- Good Smile Arts Shanghai
- Goodsmile Company
- GoodSmile Moment
- Goodsmile Racing
- GOON TRAX、メディアファクトリー
- Groove
- GruntSt
- GruntStyle
- Hachama
- Hagoromo
- HAL LEONARD CORPORATION
- HALLEON
- HANA
- handcuts Records
- HAPPINET
- Happinet
- Happinet Media Marketing
- Happinet Pictures
- Happy Promotion
- Harukaze Shobo
- Hasepro (BANDAI)
- helios
- Hello!Project Official Shop
- Heritage
- Hiboom
- Hifumi Records
- HOBBY JAPAN
- HOBBY STOCK
- hololive RECORDS
- Homesha
- Howling Bull Entertainment
- Humming Bird
- i-rights,LLC
- Ichijinsha
- iga
- Imagica Medai Publishing
- Imperial Records
- In Pre-the Rio
- indeiesmusic.com
- INFASウェーブ
- INFASパブリケーションズ
- Inox
- Inpartmaint
- Inpartmaint
- INROCK
- INROCK
- IN通信社
- Ivy
- J Storm
- J-Disc
- J-Friends Project
- J-One Records
- J-WAVE
- J.P.S.
- Jace Tones
- Japan Arts
- Japan Home Video
- Japan Home Video
- Japan Image Communications
- Japan Media Supply Co.
- Japan Print Systems
- Japan Publications Trading
- Japan Victor
- Jimco Japan
- Jiyu Kokuminsha
- JLA Amusement
- JRC
- Jurokuhoui
- JVCエンタテインメント
- JVCエンタテインメント・ネットワークス株式会社
- Jリサーチ出版
- K&Bパブリッシャーズ
- K&Kプレス
- KADOKAW
- KADOKAWA
- KADOKAWA
- KADOKAWA
- KADOKAWA
- KADOKAWA
- Kadokawa Gakugei Shuppan
- Kadokawa Haruki Corporation
- Kadokawa Interactive Media
- Kadokawa Magazines
- Kadokawa Marketing
- Kadokawa Media House
- Kadokawa Shoten
- Kadokawa Shoten
- KamLand
- KAMU
- Kato Shokai
- Kawade Shobo Shinsha
- Ki/oon Records
- Kindai Eiga sha