| 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 |
| Global Aerospace and Telecom Consulting Limited | Private company limited by shares | Live |
| Goldex Telecom Consulting Limited | Private company limited by shares | Live |
| Terabit Telecom Consulting Limited | Private company limited by shares | Live |
| TELECOM CONVENIENCE STORE LIMITED | Private company limited by shares | Dissolved |
| CONWAY TELECOM LIMITED | Private company limited by shares | Dissolved |
| Core Telecom Services Limited | Private company limited by shares | Live |
| Cornwall Telecom Limited | Private company limited by shares | Live |
| DNS TELECOM CORPORATION LIMITED | Private company limited by shares | Dissolved |
| TELECOM CORPORATION LIMITED | Private company limited by shares | Live |
| AVENIR TELECOM CORPORATION LIMITED | Private company limited by shares | Live |
| DESH TELECOM CORPORATION LIMITED | Private company limited by shares | Dissolved |
| ICALL ELECTRONICS & TELECOM CORPORATION LIMITED | Private company limited by shares | Dissolved |
| FIRST TELECOM CORPORATION LIMITED | Private company limited by shares | Live |
| New Guoxin Telecom Corporation Limited | Private company limited by shares | Live |
| POWER TELECOM INDUSTRY CORPORATION LIMITED | Private company limited by shares | Dissolved |
| PARKVILLE TELECOM CORPORATION LIMITED | Private company limited by shares | Dissolved |
| TELECOM TECHNOLOGY CORPORATION LIMITED | Private company limited by shares | Live |
| COSLUCK TELECOM LIMITED | Private company limited by shares | Dissolved |
| Co-Union Telecom Limited | Private company limited by shares | Dissolved |
| COUNTRY CAPITAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| CREATONE TELECOM LIMITED | Private company limited by shares | Dissolved |
| CREATOR TELECOM LIMITED | Private company limited by shares | Live |
| CRISTAL TELECOM LIMITED | Private company limited by shares | Live |
| C-tech Telecom Limited | Private company limited by shares | Live |
| Asia Cube Telecom (Indonesia) Limited | Private company limited by shares | Live |
| CYBER TELECOM LIMITED | Private company limited by shares | Dissolved |
| CYBER TELECOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| CYBER TELECOM ONLINE LIMITED | Private company limited by shares | Live |
| CYBERLINK TELECOM LIMITED | Private company limited by shares | Dissolved |
| Cypress Telecom Limited | Private company limited by shares | Live |
| CYPRESS TELECOM (HONG KONG) LIMITED | Private company limited by shares | Live |
| DAMAK TELECOM LIMITED | Private company limited by shares | Live |
| Danawa Telecom Co. Limited | Private company limited by shares | Dissolved |
| TELECOM DIGITAL DATA LIMITED | Private company limited by shares | Live |
| DAWEI TELECOM CO., LIMITED | Private company limited by shares | Live |
| Dawei Telecom Holding Company Limited | Private company limited by shares | Live |
| DAYE TELECOM LIMITED | Private company limited by shares | Live |
| DECON TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| DEFINE TELECOM LIMITED | Private company limited by shares | Live |
| DENON TELECOM LIMITED | Private company limited by shares | Dissolved |
| HK Derun Fung Int'l Telecom Limited | | Live |
| CHINA TELECOM DEVELOP LIMITED | Private company limited by shares | Dissolved |
| Morse Telecom Technology Develop Limited | | Live |
| NEW ASIA TELECOM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| TELECOM SCIENTIFIC DEVELOPMENT (CHINA) LIMITED | Private company limited by shares | Dissolved |
| FOREVER TECHNOLOGY TELECOM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG YI TONG TELECOM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| PACIFIC TELECOM DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| NEW CONTINENT TELECOM DEVELOPMENT PTE. LIMITED | Private company limited by shares | Dissolved |
| Sanou Telecom Development Limited | Private company limited by shares | Dissolved |
| TELECOM TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Thai Telecom Development Company Limited | Private company limited by shares | Live |
| Vstar Hope Telecom Development (HK) Limited | Private company limited by shares | Live |
| KINGTEL TELECOM DEVICE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TELECOM DIGITAL LIMITED | Private company limited by shares | Live |
| TELECOM DIGITAL 2 LIMITED | Private company limited by shares | Live |
| DIGITAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| DIGITAL TELECOM LIMITED | Private company limited by shares | Live |
| FIRST DIGITAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| FUCOM DIGITAL TELECOM GROUP LIMITED | Private company limited by shares | Live |
| DIGITEK TELECOM LIMITED | Private company limited by shares | Live |
| DIGITONE TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIRECT TELECOM LIMITED | Private company limited by shares | Live Commenced dormancy on 16-Dec-2015 |
| Telecom Distribution Company Limited | Private company limited by shares | Live |
| AZ Telecom Distribution Limited | Private company limited by shares | Live |
| Telecom Elektronik Distribution Limited | Private company limited by shares | Live |
| SNP TELECOM SYSTEM DISTRIBUTION LIMITED | Private company limited by shares | Dissolved |
| DIVULGE TELECOM LIMITED | Private company limited by shares | Live |