- Happo Co,. Ltd
- Address:2415-8ximookamodo
- SHINWA MUSIC Co.,Ltd.
- Address:12-8, Azasuetomo, Inuyama, Oaza
- Mejiro Co.-Wada Gakki
- Address:3-17-30 Shimoochiai
- HAKATA PIANO CENTER
- Address:
- Hamana
- Address:889-7 Sakae-cho
- NIGURUMA SERVICE CO LTD
- Address:
- Tatsuro Miyatake
- Address:A906 8-1 TAKASU
- ART MUSIC
- Address:
- Aqua Music Venture
- Address:6-8-24 Gumizawa Totuka Yokohama Kanagawa
- Arco Percussion
- Address:Miyagiishinomaki1-2-17 Tachimachi
- FAIRY INC.
- Address:1-4-5, Shitaya,
- sika maru corp
- Address:5f, Mizuho Building, 2-12-2 Kamiosaki
- PIANO CLUB
- Address:
- Saxz Inc.
- Address:1-11-7 Hiyoshidai
- Ishibashi Web Shop
- Address:OS BLDG 1F, 2-14 Ogawa-machi,Kanda,Chiyoda-Ku
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