Gadgets / Audio Publisher / Manufacturer
- Ikex
- Ikins
- Imation
- IMMEDIA
- Imprinc
- INBYTE
- Incipio
- innerexile
- Innovative
- INROCK
- INX
- IQ Labo
- ITPROTECH
- iui audio
- iWatchz
- Japan Nano Digital
- Japan Trust Technology
- JayLoo
- JC2
- Jelly
- JESTTAX
- JIT
- Jiyu Kokuminsha
- JJC
- Joetsu Elec
- JUICY ELECTORONICS
- Jupiter
- Just Mobile
- JUSTEM
- JVC
- KADOKAWA
- KAIHOU
- Kajikawa Kousakusyo
- Karl Lagerfeld
- Kawade Shobo Shinsha
- Kawasumi
- KEIYO
- KenkoTokina
- Kensington
- KENZO
- Kewpie
- KILY & ASSOCIATES
- kisomo
- Kjstar
- Klipsch
- Kodak
- Kodansha
- Kojima Tusyo
- LANDMICE
- Landport
- LAYBLOCK
- Lead Trend
- LEADIS
- Leef
- LeFreak
- LEZROCK
- LG Electronics Japan
- LG Innotek
- Libra
- Linkage
- Links International
- LISTEN FLAVOR
- Little Marcel
- Logitec
- LOOK EAST
- LPL
- Lucky Ship
- macros
- Magazine House
- Magnetic Laboratories
- MAGREX
- Mainichishimbun Shuppan
- Man & Wood
- maroo
- Maruhachi Sangyo
- MARUSHIN
- MATIN
- maxell
- Maximum
- maxtel
- Media Five
- MERCURY
- MILTY
- MIRO
- Mitsuibishi
- mix-style
- MIYOSHI
- Mobile Link Technology Ltd.
- Moi-meme-Moitie
- moments
- mononoff
- MOREBEST
- motomo
- Motor Magazine
- MPOWERD
- Mqbix
- Mr.H
- mtc
- MtoKプランニング
- Mush