| JA ELEC & TELECOM (GROUP) LIMITED | Private company limited by shares | Dissolved |
| OSA TELECOM & ELECTRONIC LIMITED | Private company limited by shares | Live |
| YU ON TELECOM ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| TELECOM ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| FEEDER ELECTRONICS (TELECOM) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HUNGKE TELECOM ELECTRONICS LIMITED | Private company limited by shares | Live |
| WONG'S ELECTRONICS TELECOM LIMITED | Private company limited by shares | Dissolved |
| E-LINK TELECOM LIMITED | Private company limited by shares | Dissolved |
| ELNOUHA Telecom Limited | Private company limited by shares | Live |
| ELYSIAN TELECOM LIMITED | Private company limited by shares | Live |
| HSS TELECOM & ENERGY LIMITED | Private company limited by shares | Live |
| ASENSE ENERGY & TELECOM LIMITED | Private company limited by shares | Live |
| TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BS (TELECOM) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAM KIN TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| B & E TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| TIN FAI TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| WIN YIP TELECOM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TIN WAI TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| HO TIN TELECOM ENGINEERING LIMITED | | Live |
| NEW WIN TELECOM ENGINEERING LIMITED | | Live |
| BASE TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CABLEFFUSION TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CABLEFFUSION TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| CAPITAL TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Convey Telecom Engineering Limited | Private company limited by shares | Live |
| MHK ELECTRICAL & TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| GENERAL TELECOM ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING HING TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| HONOR TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN KONG TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KWAN MING TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LIANG JIA TELECOM ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAIN TECH TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| NEOTEL TELECOM ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| ONRICH ENGINEERING (TELECOM) LIMITED | Private company limited by shares | Live |
| PROGRAM TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| SUNNY TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| 3A TELECOM SYSTEMS AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TEAMPOWER TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| TECHNIC (TELECOM) ENGINEERING LIMITED | Private company limited by shares | Live |
| TECHNO TELECOM ENGINEERING LIMITED | Private company limited by shares | Live |
| Gain Power Telecom Technology Engineering Co Limited | Private company limited by shares | Live |
| TECHWAVE TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YAT TUNG TELECOM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SUN TUNG TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| VECENT TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Mei Ying Telecom Engineering Limited | | Live |
| TELECOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| TELECOM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ENTONE TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| E-Pay Telecom Services HK Limited | Private company limited by shares | Dissolved |
| EPOCH TELECOM LIMITED | Private company limited by shares | Dissolved |
| TELECOM EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| HDG TELECOM EQUIPMENT LIMITED | Private company limited by shares | Live |
| ASIA TELECOM (EQUIPMENT) COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHANG YUAN TELECOM EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| FADAR TELECOM EQUIPMENT (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HIGHWAVE TELECOM EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| WAIHING TELECOM EQUIPMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN TELECOM & COMPUTER EQUIPMENT (HK) LIMITED | Private company limited by shares | Live |
| Elite Telecom Equipment Supply Limited | Private company limited by shares | Live Commenced dormancy on 10-Dec-2015 |
| GUANGZHOU CHUANGQI TELECOM EQUIPMENT CO. LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Guomai Telecom Equipment Company Limited | Private company limited by shares | Live |
| Hong Telecom Equipment Service Limited | Private company limited by shares | Live |
| KTECH TELECOM EQUIPMENT (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| LEADER TELECOM EQUIPMENT (H.K.) LIMITED | Private company limited by shares | Live |
| RELIABLE TELECOM EQUIPMENT (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| WEALTHY SUN TELECOM EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG HUATEL TELECOM EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| FASTFOM TELECOM EQUIPMENTS CO., LIMITED | Private company limited by shares | Live |
| ETONE TELECOM LIMITED | Private company limited by shares | Live |
| EURO-ASIA TELECOM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| EUROTEL TELECOM (ASIA) LIMITED | Private company limited by shares | Dissolved |
| EU-TOUCH TELECOM SERVICE LIMITED | Private company limited by shares | Dissolved |
| Ever Max Telecom Company Limited | Private company limited by shares | Live |
| EVER SKY TELECOM LIMITED | Private company limited by shares | Dissolved |
| eVision Telecom Limited | Private company limited by shares | Live |
| EVOLUTION TELECOM LIMITED | Private company limited by shares | Live |
| EXCELLENCE TELECOM LIMITED | Private company limited by shares | Live |
| EXPERTISE TELECOM LIMITED | Private company limited by shares | Live |
| Experts Telecom Limited | | Live |
| EXPRESS TELECOM LIMITED | Private company limited by shares | Dissolved |
| EXPRESS FORTUNE TELECOM LIMITED | Private company limited by shares | Dissolved |
| GLOBAL EXPRESS TELECOM LIMITED | Private company limited by shares | Dissolved |
| TOP EXPRESS TELECOM INFRASTRUCTURE LIMITED | Private company limited by shares | Dissolved |
| EXPRESS TELECOM (ASIA PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| FIRST FAIR TELECOM LIMITED | Private company limited by shares | Dissolved |
| FAMEWELL CHINA TELECOM LIMITED | Private company limited by shares | Dissolved |
| FANGTAI TELECOM LIMITED | Private company limited by shares | Dissolved |
| FAST TELECOM LIMITED | Private company limited by shares | Dissolved |
| AL FAYAZ TELECOM HK LIMITED | Private company limited by shares | Live |
| FEDA TELECOM LIMITED | Private company limited by shares | Live |
| FEDEX TELECOM LIMITED | Private company limited by shares | Dissolved |
| Fiber Optic Telecom Co., Limited | Private company limited by shares | Live |
| Telecom Solutions Fiber Optic Co., Limited | Private company limited by shares | Live |
| FIBERLINK TELECOM LIMITED | Private company limited by shares | Live |
| NINGBO FIBRE TELECOM EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| TELECOM FIELD COMPANY LIMITED | Private company limited by shares | Dissolved |