- DY Internationak Co.
- Address:420-2, Keumgok-Dong, Kwonsun-Gu,
- Core Technology & Inc.
- Address:2F, Hyeonbong Bldg., 121-22, Chunui, Wonmi, Bucheon
- IDTECK CO LTD
- Address:5F, Ace Techno Tower Bldg, 684-1 Deungcon-dong, Gangseo-gu,
- OPTOLOGICS CO.,LTD
- Address:# 607, 572-5, Anyangdong, Manangu,
- Potecs Corporation
- Address:
- GermanKorea Co., Ltd.
- Address:75-24, Bukyang-Dong,
- Ciellnk
- Address:# 410 Worldmerdian Center, Kasan, Kumcheon
- SAM WOONG
- Address:828 DUKAM Ri, ZUZHON MEON
- GYC CO.,LTD.
- Address:
- shinsungcontrol
- Address:
- Data Gate Korea
- Address:8F, Korean Teacher's Mutual Fund Bldg., 35-3, Yeouido-dong, Yeongdeungpo-gu
- Utofos WIreless Co.,Ltd.
- Address:6FL, KOLING SCIENCE VALLEY,
- KEUMSANG D&C
- Address:2F, 69, Gangdong-daero 53gil, Gangdong-gu
- SAFE-ROAD Co.,Ltd.
- Address:1160-2 Jungri-Dong
- DAELIM MACHINE CO,.LTD
- Address:Geumsadong 44-1,
- Daemmstoff Industrie Korea Ltd.
- Address:1506-1,Dadae-dong ,Saha-gu
- Soleill Incorpotated
- Address:70-10,Nonhyeon-dong ,Gangnam-gu
- SUNGBONG SAFETY
- Address:# 735, ITECO, 762, Deokpung-dong
- ETI CO LTD
- Address:155 Yongheung-ri Yongjin-myeon
- Yoo,Kyung Control Co.,Ltd
- Address:470-12,Gasan-dong ,Geumcheon-gu