GKデザイングループ
GK Design Group
GK Design Group Inc.
GK Industrial Design Inc.
GK Sekkei Inc.
GK Graphics Inc.
GK Dynamics Inc.
GK Tech Inc.
GK Kyoto Inc.
GK Design Soken Hiroshima Inc.
GK Design International, Inc.(Los Angeles / Atlanta)
GK Design Europe bv(Amsterdam)
GK Design Shanghai Inc.
Qingdao HaiGao Design and Mfg. Co., Ltd. (QHG)