- HVK Co., Ltd.
- Address:# 1302, Unit A. Woolimblue 9 Bussiness Center. 240-21. Teomchang-dong. Gangseo-gu
- I-fac
- Address:541-9 Bong am dong
- samjoo electronics
- Address:# 366-7, Songnae-dong,
- Ing Mart International Co.,Ltd.
- Address:4f, Myungin 2nd Plaza,12-10, Gyesan-dong, Gyeyang-gu
- Hains Co.,Ltd.
- Address:363-307, Gyeongseo-Dong, Seo-Gu
- Kumho Oraltech Co.,Ltd.
- Address:Kumho Dental Pharm Bldg.4f,300-2, Doksan-dong, Geumcheon-gu
- MECE. international
- Address:yukgok dong 36-14 303
- UVTEC
- Address:203-1, Community & Culture Center, Soongsil Univ, 511
- Von Global
- Address:253-2 Non Hyun Dong Gang Nam Gu
- Kumho Dental Tech
- Address:995-24, Siheung 1-dong, Kumchun-gu
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