- Kodenshi Korea Corp.
- Address:513-5,Eoyang-dong ,Iksan-si
- Telenics Company
- Address:301-1103, Booyeong 3rd Apt. Samgae Dong
- Kyung Bo Sealtech Co., Ltd
- Address:779-1,Wonsi-dong ,Danwon-gu, Ansan-si
- Dongbu LED Co.,ltd.
- Address:
- PTG Global(H.Q)
- Address:375 Seoseok Dong Dong Gu
- Imp Engineering
- Address:275-2,Yangjae-dong ,Seocho-gu
- Dasol Electronics
- Address:1020-9 3F, Bangbae-dong
- DHE Co.,Ltd
- Address:# 396 Seocheon-Dong, Giheung-Gu,
- M-FOD International Co., Ltd
- Address:602, Jiseok B / D, 678-4, DeungChon3-Dong
- HLW Co.,Ltd
- Address:15, Shindae-ri, Shilchon-eup,
- Seoul Semicon
- Address:
- Kec Holdings Co., Ltd.
- Address:517-4,Gasan-dong ,Geumcheon-gu
- Hani Corporation
- Address:1695-5,Seocho-dong ,Seocho-gu
- dksemi
- Address:# 182-7 Sins-dong, Eunpyung-Gu
- Dasa Trading Co.
- Address:3rd Floor, Myong Bldg,396-36, Seogyo-dong, Mapo-gu
- ITSWELL Co.,LTD.
- Address:58B-4L, 626-3 Gojan-dong
- Autoffice E&M CO., LTD
- Address:Seocho-gu Kangnam 37 Street 49
- AlphaMed
- Address:256-12, Beop-Got Dong, Ilsan Seo-Gu
- INCLUX CO.,LTD
- Address:3F, 945, Gosaek-dong, Gwonseon-gu,
- Vichel Inc.
- Address:92-6,Yangjae-dong ,Seocho-gu