| HUANTONG TELECOM HONGKONG HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HUIYING TELECOM (HONGKONG) TRADE CO., LIMITED | | Live |
| HONGKONG LANSING TELECOM INT'L CO., LIMITED | Private company limited by shares | Live |
| HONGKONG JOIN TELECOM HOLDING LIMITED | Private company limited by shares | Dissolved |
| HONGKONG KONGYUK TELECOM BUSINESS CO., LIMITED | Private company limited by shares | Live |
| HONGKONG MACAU TELECOM HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HONGKONG TELECOM FUND MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG MKTEL TELECOM LIMITED | Private company limited by shares | Live |
| Opfibra (HongKong) Telecom Limited | Private company limited by shares | Live |
| HONGKONG PATRICK TELECOM LIMITED | Private company limited by shares | Dissolved |
| Hongshi (Hongkong) Telecom Services Co., Limited | Private company limited by shares | Live |
| SHATIN TELECOM (HONGKONG) LIMITED | Private company limited by shares | Live |
| HONGKONG SINTONG TELECOM LIMITED | Private company limited by shares | Dissolved |
| HONGKONG SOAR TELECOM COMPANY LIMITED | | Live |
| STONE TELECOM (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| HongKong Best Suppliers Telecom Co., Limited | Private company limited by shares | Dissolved |
| HONGKONG CHUNGHA TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGKONG ROVAN TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG TELECOM NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SOKEA TELECOM TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| HONGKONG TONGTIANDI TELECOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONGKONG TENGYUANTONG TELECOM EQUIPMENT COMPANY LIMITED | Private company limited by shares | Live |
| Hongkong DS Telecom Trading Co., Limited | | Live |
| HONGKONG WUZHOU TELECOM CORPORATION LIMITED | Private company limited by shares | Live |
| XINGQIU HONGKONG TELECOM LIMITED | | Live |
| HONGKONG XPHONE TELECOM CO., LIMITED | Private company limited by shares | Live |
| HONGSING TELECOM LIMITED | Private company limited by shares | Live |
| HONOR TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| NEW FLY HORSE TELECOM LIMITED | Private company limited by shares | Live |
| HOSHING TELECOM LIMITED | Private company limited by shares | Dissolved |
| SIX HOUSE TELECOM LIMITED | Private company limited by shares | Live |
| Smart House Telecom Group Limited | Private company limited by shares | Live |
| Huahui Telecom Limited | | Live |
| Huawei Telecom Technology (HK) CO., Limited | Private company limited by shares | Live |
| HUAXUN TELECOM ELECTRONICS LIMITED | | Live |
| Huayu Telecom Co., Limited | Private company limited by shares | Live |
| HUDGSON TELECOM HOLDING LIMITED | Private company limited by shares | Dissolved |
| HUDSON TELECOM LIMITED | Private company limited by shares | Live |
| Huicast Telecom Limited | | Live |
| Hunter Telecom Limited | Private company limited by shares | Live |
| Husing Telecom Limited | Private company limited by shares | Live |
| HUTCHISON TELECOM FINANCE LIMITED | Private company limited by shares | Live |
| HUTEL TELECOM (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA HYTERA TELECOM TECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| i-CABLE Telecom Limited | Private company limited by shares | Live |
| ICARD ASIA TELECOM LIMITED | Private company limited by shares | Dissolved |
| ICLOUD TELECOM LIMITED | Private company limited by shares | Live |
| IDEAL TELECOM HK LIMITED | Private company limited by shares | Live |
| iGear HK Telecom Limited | Private company limited by shares | Live |
| IMAX TELECOM HK LIMITED | Private company limited by shares | Live |
| IN-CITY TELECOM LIMITED | Private company limited by shares | Dissolved |
| IN-COINS TELECOM LIMITED | Private company limited by shares | Live |
| ASIA TELECOM INCORPORATION LIMITED | Private company limited by shares | Dissolved |
| NORSTAR TELECOM INCORPORATION LIMITED | Private company limited by shares | Dissolved |
| TELECOM INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ADVANCED TELECOM INDUSTRIES, LIMITED | Private company limited by shares | Dissolved |
| STAR TELECOM INDUSTRIES LIMITED | Private company limited by shares | Live |
| GLOBALNET TELECOM INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| GUANGDONG TELECOM INDUSTRY GROUP (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| INFINITY TELECOM LIMITED | Private company limited by shares | Dissolved |
| INFINITY TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| MULTITECH TELECOM INFO LIMITED | Private company limited by shares | Dissolved |
| INFOLINK TELECOM CO. LIMITED | Private company limited by shares | Dissolved |
| ASIA TELECOM INFORMATION LIMITED | Private company limited by shares | Dissolved |
| CHINA INFORMATION AND TELECOM EDUCATION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| East Telecom Advertising Information Limited | Private company limited by shares | Live |
| NETWORK TELECOM INFORMATION LIMITED | Private company limited by shares | Live |
| INFOWEB TELECOM LIMITED | Private company limited by shares | Dissolved |
| PAN TELECOM INFRASTRUCTURE LIMITED | Private company limited by shares | Live |
| ASIA TELECOM INFRASTRUCTURE LIMITED | Private company limited by shares | Live Commenced dormancy on 13-May-2016 |
| COOL'S TELECOM INFRASTRUCTURE LIMITED | Private company limited by shares | Dissolved |
| Sun Winter Telecom Infrastructure Limited | Private company limited by shares | Live |
| Innonik Telecom Limited | Private company limited by shares | Live |
| INNOVATION TELECOM LIMITED | Private company limited by shares | Live |
| Telecom Inspiration Limited | Private company limited by shares | Live |
| TELECOM INSTRUMENTS LIMITED | Private company limited by shares | Dissolved |
| INTELLECT TELECOM LIMITED | Private company limited by shares | Dissolved |
| INTELLIGENCE TELECOM LIMITED | Private company limited by shares | Live |
| INTELLIGENCE TELECOM MARKETING LIMITED | Private company limited by shares | Live |
| INTERACTIVE TELECOM LIMITED | Private company limited by shares | Live |
| INTERCONTINENTAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| INTERLINK TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| A. U. INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| TELECOM INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| TELECOM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| C G International Telecom Limited | Private company limited by shares | Live |
| ACT INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| C G TELECOM INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIT TELECOM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| RAM Telecom International Limited | Private company limited by shares | Dissolved |
| AIX INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| J2 INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| FLY UP INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| SKY INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| CAC Telecom International Limited | Private company limited by shares | Live |
| IDD 1538 INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Live |
| AFRICA TELECOM INTERNATIONAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| Aishwarya Telecom International Limited | Private company limited by shares | Dissolved |
| HOLY ANGEL TELECOM INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |