- Inpa Co., Ltd.
- Address:Room 1017,Ilsantechno town,1141-1 Baikseok-dong,Ilsan-gu
- Banana Train Co.,Ltd.
- Address:202-802 Bucheon Technopark Yakdae-dong,Yakdae-dong ,Wonmi-gu, Bucheon-si
- TeacherLang
- Address:BI center 3077, Ansan University, Sangrok-gu
- DONGHWA IND CO., LTD.
- Address:865-44 Gahyeon-Ri Tongjin-Eup
- TOMO Co., Ltd.
- Address:RM.801-4 TRADE TOWER,159-1 SAMSUNG-DONG,KANGNAM-KU
- nakwon stationery co.,ltd
- Address:io2ho, hanwool1st apt storement, yuliangdong, shangdang gu
- Haidong Machinery Equipment Co., Ltd
- Address:
- Kyoung-Yeon Kang
- Address:
- H.O.S.
- Address:304-1 Jangdae-dong
- WOLRDNET
- Address:
- IT-Chem
- Address:YangCheongRi
- Acabar Corporation
- Address:2F BOOIL BLDG, 494-95 YONGGANG-DONG, MAPO-GU
- ROHO Corporation
- Address:626-5 Sulmoon-dong
- Spornia
- Address:16-57,Gusan-dong ,Eunpyeong-gu
- T-Works Co.,Ltd.
- Address:MS Bldg, 98, Wa-dong, Danwon-gu,
- Youngil Education System
- Address:
- CellaGene
- Address:# 316, Yujung Bldg 50-7, Dongjak-gu, Daebang-dong
- expertech
- Address:# 1606 paradistel, 159-6 dongkyudong
- Bu Young World Co., Ltd
- Address:254-9,Yongdu-dong ,Dongdaemun-gu
- JAEIL GENERAL CO LTD
- Address:3Na-407 Shihwa Industrial, 1290-6 Jungwang-dong