- Campnet Co., Ltd.
- Address:4th Floor, 934-6, Gwanyang-dong, Dongan-gu
- Hantel Co.,Ltd.
- Address:513-15,Sangdaewon-dong ,Jungwon-gu, Seongnam-si
- Ace Technology Corp.
- Address:727-5,Gojan-dong ,Namdong-gu
- Nextlink Co., Ltd.
- Address:c 606-2, Bundang TechnoPark ,145, Yatap-dong, Bundang-gu, Seongnam-si
- SOLCOM I&C CO., LTD.
- Address:203-36
- Enidus
- Address:195-58,Anyang 7-dong ,Manan-gu, Anyang-si
- READU CO LTD
- Address:1-32, Geumjeong-doing