- A.ONE Tech Logic
- Address:332-9, Sau-dong
- Hai Yang Olix Co., Ltd.
- Address:Samjeong-dong ,Ojeong-gu, Bucheon-si
- JAE WON COM NET
- Address:Rm3102, Ma-Dong, Chungang Circulation Complex, 1258, Kurobon-Dong, Kuro-Gu
- ARA Networks Co., Ltd
- Address:13nd Fl, EunSeong Bldg, 53-8 Cheongdamdong, Gangnamgu,
- Hunit Networks
- Address:Byuck San Digital Valley Guro Dong
- Youngill Telecom
- Address:1874, Sindang-dong, Dalseo-ku
- KTM Technology
- Address:sd
- Bridgetec Corp.
- Address:14Fl., Korea Teachers Pension Bldg., 27-2, Yeouido-dong, Yeongdeungpo-gu
- ACT Communication Technologies Co.,Ltd.
- Address:4Fl, joilB/D, 291-2, Yatapdong, Bundang-gu
- INOCOVA CO., LTD.
- Address:# 20-4, 4f young cultural foudation bldg, yang-jae 1dong
- TELCRA KOREA
- Address:# 605 Haedong Bldg. , 154, Bangyi-Dong,
- Goodway Company
- Address:Youido dong
- HIWAVE INC
- Address:1288-1, Bojeong-dong
- Ant Telecom Co., Ltd.
- Address:Cheongwun B/D 6F, 990-198, Keomsa-dong, Dong-gu, Daegu, Korea
- Cybernet Inc.
- Address:513-15,Sangdaewon-dong ,Jungwon-gu, Seongnam-si
- vcore
- Address:11th FL. , Byucksan Digitalvalley 3, 121-13, Guro-dong
- TELE FRONTIER
- Address:3F, 396-11, DAEBANG-DONG, DONGJAK-GU
- Chun Il Rf Co.,Ltd.
- Address:609-24,Guro-dong ,Guro-gu
- SH BEACON INC
- Address:Seocho gu
- I-DO-IT Co., Ltd
- Address:#11-1201 Hyundai Apt., Kwanpyungro 333, Dongan Gu,