- Sun-A International Co., Ltd.
- Address:102-1103, Kangbyun Charmant, 628-16, Deungchon-Don, Kangseo-Gu
- INFOCHIPS
- Address:8F, Taeyang Bldg. , 826-34, Yeoksam-dong, Kangnam-gu
- YongJin Elecomm Co.,Ltd
- Address:# 147, Nae-Dong, Ojeong-Gu
- Core Electric co Ltd
- Address:
- Actipass R & M Co., Ltd.
- Address:366, KWIRAE-RI, JUNG NAM-MYUM
- KPCR Co., Ltd.
- Address:
- MPDEVICE CO LTD
- Address:45B-1L, # 435 Nohnhyun-dong, Namdong-ku
- Utx Co., Ltd
- Address:371-28,Gasan-dong ,Geumcheon-gu
- FIBER & NETWORKING CO LTD
- Address:959-75, Daechon-dong
- MI-SEOJIN
- Address:3F, 98Saneop-ro, Gwonseon-gu
- ABCO ELECTRONICS
- Address:SANDAEWON
- Hoya Lens Korea Co.,Ltd
- Address:YOONIL BLDG, 1443-15, Seocho 1-dong ,Seocho-gu
- ADMOTECH Inc.
- Address:1320, Gwanpyung-Dong, Yusong-Gu
- Curoholdings Co.,Ltd
- Address:23-8,Yeouido-dong ,Yeongdeungpo-gu
- Phicom
- Address:Eunhaeng-dong
- e-Tron Co.,Ltd
- Address:room1601, Kumkang Venturetel, 1108, Bisan-dong, Dongan-gu
- TRF co.
- Address:167-16 3F, Goean-dong, Sosa-gu
- SUNWAVETEC CO LTD
- Address:Sunwavetec Bldg, 990-3, Cheonggye-Dong,
- JUYOUNG INTERNATIONAL INC
- Address:# 213, Seolleung Daewoo i-ville, 890-49, Daechi-dong, Kangnam-ku
- Lanbird Technology
- Address:1487,Gayang 3-dong ,Gangseo-gu