| Keynote Telecom Technology Co., Limited | Private company limited by shares | Live |
| LEADER TELECOM CO., LIMITED | Private company limited by shares | Live |
| LIEN TELECOM CO., LIMITED | Private company limited by shares | Live |
| FAST LINK TELECOM CO., LIMITED | Private company limited by shares | Live |
| LIRONG TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Lixing Telecom Co., Limited | | Live |
| LONYO TELECOM CO., LIMITED | Private company limited by shares | Live |
| MOBIGLOBE TELECOM CO., LIMITED | Private company limited by shares | Live |
| NICE TELECOM CO., LIMITED | Private company limited by shares | Live |
| HK NINEHE TELECOM GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Nobitel Telecom Co., Limited | Private company limited by shares | Live |
| HK ONEWAY TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| HK OTHMAN TELECOM CO., LIMITED | Private company limited by shares | Live |
| Jitron Telecom Parts Co., Limited | Private company limited by shares | Live |
| PREMIER TELECOM TECH CO., LIMITED | Private company limited by shares | Dissolved |
| RAVA TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| SEEKER TELECOM (CHINA) CO., LIMITED | Private company limited by shares | Live |
| SilverTech Telecom Co., Limited | Private company limited by shares | Live |
| SIYUE TELECOM GROUP CO., LIMITED | Private company limited by shares | Live |
| CHINA SKYLINE TELECOM CO., LIMITED | Private company limited by shares | Live |
| SKYWARD TELECOM CO., LIMITED | Private company limited by shares | Live |
| Smart Telecom Co., Limited | Private company limited by shares | Dissolved |
| SMART TELECOM HK CO., LIMITED | Private company limited by shares | Live |
| SMART-TECH TELECOM CO., LIMITED | Private company limited by shares | Live |
| Snowfly Telecom Co., Limited | Private company limited by shares | Live |
| SOUTH TELECOM CO., LIMITED | Private company limited by shares | Live |
| SUNLIGHT TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| SUNLIGHT TELECOM CO., LIMITED | Private company limited by shares | Live |
| SUNRISE TELECOM CO., LIMITED | Private company limited by shares | Live |
| TELECOM AND POWER SYSTEM CO., LIMITED | Private company limited by shares | Live |
| TALK TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| Homk Telecom Tech Co., Limited | Private company limited by shares | Live |
| ZHEJIANG PINGAN TELECOM TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| LI GAO TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| JOY TeleCom Technology Co., Limited | | Live |
| HK Lingsheng Telecom Technology Co., Limited | | Live |
| Ming Hua Telecom Technology Co., Limited | Private company limited by shares | Live |
| NINGBO GMF TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Ober Telecom Technology Co., Limited | Private company limited by shares | Live |
| TELESAILOR TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK TIANCHENG TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Shenzhen Tianjian Telecom Technology Co., Limited | Private company limited by shares | Live |
| TONG TIN DEI TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WIRENET TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YONLIT TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YUCHENG TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| XUN TENG TELECOM CO., LIMITED | Private company limited by shares | Live |
| HK XUN TENG TELECOM CO., LIMITED | Private company limited by shares | Live |
| TENGSUN TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| TEUACCELE TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OHHO TELECOM TRADING CO., LIMITED | Private company limited by shares | Live |
| SKY POWER TELECOM TRADING CO., LIMITED | Private company limited by shares | Live |
| TWINSTAR TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| UNISCOPE TELECOM CO., LIMITED | Private company limited by shares | Live |
| UNISTAR TELECOM CO., LIMITED | Private company limited by shares | Live |
| UNITE TELECOM CO., LIMITED | Private company limited by shares | Live |
| Universal Trading Telecom Co., Limited | Private company limited by shares | Live |
| HK VIVAN TELECOM CO., LIMITED | Private company limited by shares | Live |
| WELLAND TELECOM CO., LIMITED | | Live |
| WeNet Telecom Co., Limited | Private company limited by shares | Live |
| WINGS TELECOM CO., LIMITED | Private company limited by shares | Live |
| XINBAI TELECOM CO., LIMITED | Private company limited by shares | Live |
| XING DA TELECOM CO., LIMITED | Private company limited by shares | Live |
| YITENG TELECOM CO., LIMITED | Private company limited by shares | Live |
| ZHCALL TELECOM CO., LIMITED | Private company limited by shares | Live |
| ZHONGGUANCUN TELECOM CO., LIMITED | Private company limited by shares | Live |
| Zongheng Telecom Co., Limited | Private company limited by shares | Live |
| COMBA TELECOM LIMITED | Private company limited by shares | Live |
| Comba Telecom Data Limited | Private company limited by shares | Live |
| COMBA TELECOM TECHNOLOGY (GUANGZHOU) LIMITED | Private company limited by shares | Live |
| COMBA TELECOM HOLDING (HK) LIMITED | | Live |
| Comba Telecom Network Systems Limited | Private company limited by shares | Live |
| Comba Telecom Networks Limited | Private company limited by shares | Live |
| COMBA TELECOM SYSTEMS LIMITED | Private company limited by shares | Live |
| COMEMORE TELECOM LIMITED | Private company limited by shares | Dissolved |
| GO COM-GLOBAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| AMERICAN COMMERCE (TELECOM) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMERCE TELECOM (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG COMMERCE TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIAN PACIFIC COMMERCIAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| COMMNET TELECOM LIMITED | Private company limited by shares | Live |
| Calltime Telecom Communication Limited | Private company limited by shares | Live |
| COMMUNICATION CENTRE TELECOM LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL COMMUNICATION TELECOM CO., LIMITED | Private company limited by shares | Live |
| Asia Telecom Communications Limited | Private company limited by shares | Live |
| TELECOM NETWORK COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| COMTECH TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| NEW CONCEPT TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| IT CONCEPT TELECOM LIMITED | Private company limited by shares | Live |
| CONCEPT 21 TELECOM LIMITED | Private company limited by shares | Dissolved |
| SMART CONCEPT TELECOM SERVICE LIMITED | Private company limited by shares | Live |
| Concordia Telecom Limited | Private company limited by shares | Live |
| Confirm Telecom Limited | Private company limited by shares | Live |
| TELINK TELECOM ENGINEERING CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| TELECOM CONSULTANT SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| H & H TELECOM CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| AVALON TELECOM CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TELECOM CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| NETRON TELECOM CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WAH FAI TELECOM CONSULTING LIMITED | Private company limited by shares | Dissolved |