- Yokogawa Measuring instruments Korea Corporation
- Address:
- autosys
- Address:1001-002, it castle 1dong, 550-1,
- POWER21
- Address:609, hanshin S-MECA, 1359 Guanpyeong-dong, Yuseong-gu, Daejeon, Korea
- Otochem Co.,Ltd.
- Address:Yeongdeungpo-dong 7-ga ,Yeongdeungpo-gu
- Marktech Trading Co.,Ltd.
- Address:395-8,Yangjae-dong ,Seocho-gu
- Hwa Jin Enterprise Co.,Ltd
- Address:1573-10,Songjeong-dong ,Gangseo-gu
- NANOENTEK INC
- Address:12F Ace High-End Tower 235-2, Guro3-dong, Guro-gu, Seoul, 152-740
- SV CORP.
- Address:719-1. I-dong, Sangnok-gu
- SurfaceTech
- Address:No. 307 Starwood Bd. , 5439-1 Sangdaewon-Dong
- Korea Highway and Airport Technlogy co.,LTD
- Address:Suit 405, World Merdian Bizcenter, 15-1, Yangpyeong-dong-3-Ga, Yeongdeungpo-gu
- RENTECH KOREA CORP
- Address:
- Dae Il Science Co., Ltd.
- Address:164-1,Poi-dong ,Gangnam-gu
- Suntech Engineering Co., Ltd.
- Address:
- HANINT Co., Ltd.
- Address:# 1614, LG Palace B / D, 165-8, Donggyo-Dong, Mapo-Gu,
- Istek Inc.
- Address:235,Guro-dong ,Guro-gu
- SONGAM STUD INDUSTRY
- Address:204 WonSan-Li, HaSeong-Myeon
- Various, Inc.
- Address:Suite 902, 199 Useong Character, Dogok 2-dong, Gangnam-gu, Seoul, Korea
- K-MAC, Korea Materials & Analysis Corporation
- Address:104-11 Moonji Dong Yusung Ku
- Nano Technics Co., Ltd
- Address:RM.103,2 BA, SHIHWA INDUSTRIAL COMPLEX,Jeongwang-dong ,Siheung-si
- Biotel Co., Ltd
- Address:121-3, Botong-ri, Jeongnam-myeon, Hwaseong-si