- Migreen Optical
- Address:1696-1,Sinil-dong ,Daedeok-gu
- OPTONICS
- Address:namdong-gu nonhyun-dong 443-1
- Young Shin Corporation
- Address:#302 Chungyong Bldg.
- INCHEON SURVEY INSTRUMENT CO LTD
- Address:
- Synus
- Address:Anyang Trade Center 510ho Bisan-dong
- HS Biosystems
- Address:Seoulin Bldg, 452-2, Songnae-dong Gangdong-gu
- Green & Glass Optical co.,ltd
- Address:1f, 485-2 songchon-dong, daedeok gu
- Photonics Planar Intearation Technology Inc
- Address:958-10,Daechon-dong ,Buk-gu
- Unicos Co., Ltd
- Address:Unicos B / D, # 114-1, Munhwa-Dong
- PAKKOREA INTL TRADING CO.LTD
- Address:50-32shin dang 6-dong chungku
- Saramsoft Co.,Ltd
- Address:A-402, Acrotower, Gwanyang-dong, Dongan-gu,
- MEGA MEDICAL CO., LTD.
- Address:#2504, A Bldg, Woolim Blue 9, 583
- Optonest Co.,Ltd
- Address:958-6 Daechon-dong,Daechon-dong ,Buk-gu
- VisionST
- Address:# 110 Byucksan Digitalvalley3, 212-13, Guro-dong, Guro-gu
- Mu Tech Korea Co., Ltd.
- Address:481-10,Gasan-dong ,Geumcheon-gu
- Hanbando Commerce Co.
- Address:
- Astrodreamtech Co., Ltd.
- Address:555-31 Baekseok-dong, Seobuk-gu,
- pharoscom co ltd
- Address:302 Yang-Ji B / D, 397-1, Sungne-Dong, Kangdong-Gu
- Photon Dynamics Korea
- Address:397-26 Doryong-dong,Doryong-dong ,Yuseong-gu
- AMTEK
- Address:# 102-603, Digital Empire II, 486, Shin-Dong