- DAEIL SYSTEMS CO., LTD.
- Address:27-26 Nan-Dong, Cheoin-Gu
- Hanbando Co., Ltd.
- Address:742-5,Wonsi-dong ,Danwon-gu, Ansan-si
- HAE SUNG MEDICAL CO.
- Address:21-9, Sejong-daero 2-gil
- Jarvis sapphire
- Address:
- HANARO TRADING CO.,LTD
- Address:103-1510 Digital Empire II 486 Shin Dong, Youngtong-Gu
- Synus
- Address:Anyang Trade Center 510ho Bisan-dong
- HS Biosystems
- Address:Seoulin Bldg, 452-2, Songnae-dong Gangdong-gu
- Photonics Planar Intearation Technology Inc
- Address:958-10,Daechon-dong ,Buk-gu
- Unicos Co., Ltd
- Address:Unicos B / D, # 114-1, Munhwa-Dong
- Optonest Co.,Ltd
- Address:958-6 Daechon-dong,Daechon-dong ,Buk-gu
- VisionST
- Address:# 110 Byucksan Digitalvalley3, 212-13, Guro-dong, Guro-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
- AIJOARA
- Address:
- Medizs
- Address:702, Tamnip-dong
- Pichina Optical Co., Ltd.
- Address:277-14,Ojeong-dong ,Daedeok-gu
- MuHan Trading Co., Ltd
- Address:970-7, Gyesan-dong, Gyeyang-gu
- WTS
- Address:776-1
- Ampelos enterprise
- Address:RM406, 1st innoplex B / D, 371-47
- AJUHITEK INC.
- Address: