| 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 |
| Telecom Digital Finance Limited | Private company limited by shares | Live |
| FINE TELECOM LIMITED | Private company limited by shares | Live |
| FINMEK TELECOM LIMITED | Private company limited by shares | Live |
| FIRESTONE TELECOM LIMITED | Private company limited by shares | Live |
| FIRST TELECOM LIMITED | Private company limited by shares | Dissolved |
| FIRSTOPTION TELECOM CO., LIMITED | Private company limited by shares | Live |
| FIZAN TELECOM LIMITED | Private company limited by shares | Live |
| FLAG TELECOM ASIA LIMITED | Private company limited by shares | Live |
| FlyfoneTalk Telecom Limited | Private company limited by shares | Live |
| FLYING TELECOM LIMITED | Private company limited by shares | Live |
| FLYING TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FLYN TELECOM LIMITED | Private company limited by shares | Live |
| FOCUS TELECOM LIMITED | Private company limited by shares | Dissolved |
| FORTEX TELECOM LIMITED | Private company limited by shares | Dissolved |
| FORTUNE TELECOM LIMITED | Private company limited by shares | Live |
| Forum Telecom HK Limited | Private company limited by shares | Dissolved |
| China Telecom Internet & IOT Foundation Co., Limited | Private company limited by shares | Live |
| FOUNT LIGHT TELECOM LIMITED | | Live |
| Foxton Telecom Limited | Private company limited by shares | Live |
| Freecall Telecom Limited | Private company limited by shares | Live |
| FREE-COM TELECOM LIMITED | Private company limited by shares | Dissolved |
| Freely power and telecom Co,. LIMITED | Private company limited by shares | Dissolved |
| Freeman Telecom Group Company Limited | Private company limited by shares | Live |
| FRONTIER TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| FUBO TELECOM COMPANY LIMITED | | Live |
| FUJIAN TELECOM LIMITED | Private company limited by shares | Dissolved |
| FUJIHONG TELECOM LIMITED | Private company limited by shares | Live |
| EMERGING TECHNOLOGY AND TELECOM INVESTMENT FUND LIMITED | Private company limited by shares | Dissolved |
| YEN FUNG TELECOM LIMITED | Private company limited by shares | Dissolved |
| YAT FUNG TELECOM (GROUP) LIMITED | Private company limited by shares | Live |
| HANG FUNG HONG TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hang Fung Telecom Infrastructure Limited | Private company limited by shares | Live |
| SHUI FUNG TELECOM LIMITED | Private company limited by shares | Live |
| Wa Fung Telecom Trading Limited | | Live |
| WING FUNG TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FUTURE TELECOM LIMITED | Private company limited by shares | Dissolved |
| HK FUTURE STAR TELECOM LIMITED | Private company limited by shares | Live |
| FUXIN TELECOM (HK) LIMITED | Private company limited by shares | Live |
| GAAF TELECOM LIMITED | Private company limited by shares | Dissolved |
| GAIN HILL TELECOM LIMITED | Private company limited by shares | Live |
| GAINWELL TELECOM LIMITED | Private company limited by shares | Live |
| GALAXI TELECOM LIMITED | Private company limited by shares | Live |
| GALAXMIAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| GALAXY TELECOM LIMITED | Private company limited by shares | Dissolved |
| GALAXY TELECOM LIMITED | Private company limited by shares | Live |
| TELECOM GALLERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Gamma Telecom Limited | Private company limited by shares | Live |
| GAMPLUS TELECOM GROUP LIMITED | Private company limited by shares | Dissolved |
| GAOFENG TELECOM TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| GATEWAY TELECOM LIMITED | Private company limited by shares | Dissolved |
| Gateway Telecom Investment Co. Limited | Private company limited by shares | Live |
| GEAR TELECOM LIMITED | Private company limited by shares | Live |
| GEEMARC TELECOM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GENERAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| TELECOM GENERATION COMPANY LIMITED | Private company limited by shares | Live |
| TELECOM GENERATION INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| Telecom Generation (Hong Kong) Company Limited | Private company limited by shares | Live |
| GENIE TELECOM (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| GENIUS TELECOM UNITED LIMITED | | Live |
| GETEK TELECOM LIMITED | Private company limited by shares | Dissolved |
| GETEKNET TELECOM EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| G'FIVE TELECOM LIMITED | Private company limited by shares | Live |
| GIANT TELECOM LIMITED | Private company limited by shares | Live |
| GIANT TELECOM TRADING LIMITED | Private company limited by shares | Live |
| Glister Telecom Co., Limited | | Live |
| GLOBAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| GLOBAL TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| GLOBAL TELECOM HK LIMITED | Private company limited by shares | Dissolved |