- Quadgate
- Address:Room501, Woolim E-Biz Center II,184-1 Guro-3Dong
- TeacherLang
- Address:BI center 3077, Ansan University, Sangrok-gu
- Kd Net Co., Ltd.
- Address:437-2,Mogok-dong ,Pyeongtaek-si
- SHINELP KOREA LTD
- Address:578 Jayang 3-dong, Gwangjin-gu
- WOOAM INC
- Address:2F KOAMI Bldg. , 13-6, Yeouido-dong
- Orukol Information & Communication
- Address:3Fl, 839-13, Bangbae-Dong
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