- Hanseo Co., Ltd.
- Address:266,Nowon 3-ga ,Buk-gu
- Sam Woong Corp.
- Address:62-11,Nowon 3-ga ,Buk-gu
- Star Optical Fashion
- Address:557-36,Chimsan-dong ,Buk-gu
- NemoDAL
- Address:1F, Danam B / D, 120
- Omega Optical Co.,
- Address:1228-2 Bisan-dong,Bisan-dong ,Seo-gu
- hanbyul optical co.
- Address:148 obong-ro
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