- Unitron, Inc.
- Address:A-201, Hanyang Institue of Technology, 222 Wangsimni-ro, Seongdong-gu
- ComTech Korea
- Address:Biz center 1-907, Guro-dong, Guro-gu
- UFINE Technologies Co., Ltd.
- Address:46 Gumgok-Dong, Bundang-Gu, Sungnam-SI, Kyunggi Province 463-804, Korea
- Seohwa Telecom Co.,LTD.
- Address:SEOHWA Bldg. , # 678, Gasan-dong, Gumcheon-gu
- Line Tech Co.
- Address:70BL-7LOT 639-7 Gojandong
- MOATEL CO.,LTD
- Address:345-89Geumchun-Gu
- Kisan Telecom
- Address:66-2,Bangi-dong ,Songpa-gu
- Jung Ang System
- Address:JAS Bldge., 504-29, YounNam-Dong, Mapo-Gu
- Spectrum Co., Ltd
- Address:Ace High-Tech City 3-607 55-20 Munrae-Dong 3ga
- Kyoungdo System Co., Ltd.
- Address:67-37,Cheongcheon-dong ,Bupyeong-gu
- Lumens
- Address:522,Dangjeong-dong ,Gunpo-si
- KTM Technology
- Address:sd
- ACT Communication Technologies Co.,Ltd.
- Address:4Fl, joilB/D, 291-2, Yatapdong, Bundang-gu
- TELCRA KOREA
- Address:# 605 Haedong Bldg. , 154, Bangyi-Dong,
- HIWAVE INC
- Address:1288-1, Bojeong-dong
- Chun Il Rf Co.,Ltd.
- Address:609-24,Guro-dong ,Guro-gu
- CIJ Inc.
- Address:101 IT Pleax, Jangdong
- Kaicom Co.,Ltd.
- Address:#109, Techno Town, 1487,Gayang 3-dong ,Gangseo-gu
- Metis Communication
- Address:SuJi-Gu DongCHun-Dong 853-1 Hyundai F & G 607
- Sewon Teletech, Inc.
- Address:881,Gwanyang-dong ,Dongan-gu, Anyang-si