NSK ECHOMARK Co., Ltd. (Agatsuma-Gun, Gunma) : TS300P-1800
GRADIO Ltd. (Sapporo city, Hokkaido)
TK Corporation Ltd. (Sapporo city, Hokkaido)
Shimizu Octo, Inc. (Headquarters: Shinjuku-ku, Tokyo)
Kyoritsu Ad Studio Ltd. (Kawaguchi city, Saitama)
LABTOKYO Co., Ltd. (Shinjuku-ku, Tokyo)