| RIGHTONE TELECOM LIMITED | Private company limited by shares | Dissolved |
| Ringme Telecom Limited | Private company limited by shares | Live |
| FREQUENT RISE TELECOM LIMITED | Private company limited by shares | Live |
| Riseing Sun Telecom Trade Limited | | Live |
| Rising Telecom Limited | | Live |
| ROISA TELECOM LIMITED | Private company limited by shares | Live |
| ROOTS TELECOM LIMITED | Private company limited by shares | Dissolved |
| ROSE TELECOM HK LIMITED | Private company limited by shares | Dissolved |
| ROTEX TELECOM SERVICE LIMITED | Private company limited by shares | Dissolved |
| ROYAL OVERFLY TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| RUIKAI TELECOM LIMITED | Private company limited by shares | Live |
| RUIXING TELECOM LIMITED | Private company limited by shares | Dissolved |
| Russwill Telecom Limited | Private company limited by shares | Live |
| SHENZHEN SACON TELECOM CO., LIMITED | Private company limited by shares | Live |
| SAIGON INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| SET SAIL TELECOM LIMITED | Private company limited by shares | Live |
| Samford Telecom Services Limited | Private company limited by shares | Live |
| SANDU TELECOM CO., LIMITED | Private company limited by shares | Live |
| NAM SANG TELECOM CO. LIMITED | Private company limited by shares | Live |
| HK SANHE TELECOM LIMITED | | Live |
| SCORPION TELECOM LIMITED | Private company limited by shares | Live |
| SEACOM FANG TAI TELECOM LIMITED | Private company limited by shares | Dissolved |
| SEATEK TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| CCT TELECOM SECURITIES LIMITED | Private company limited by shares | Live |
| TELECOM DIGITAL SECURITIES LIMITED | Private company limited by shares | Live |
| ASIA SECURITY TELECOM CO., LIMITED | Private company limited by shares | Live |
| SEGO TELECOM LIMITED | Private company limited by shares | Live |
| TELECOM SERVICE LIMITED | Private company limited by shares | Live |
| TELECOM SERVICE ONE LIMITED | Private company limited by shares | Live |
| FUTURA TELECOM SERVICE LIMITED | Private company limited by shares | Dissolved |
| SMART TELECOM SERVICE LIMITED | Private company limited by shares | Live |
| SMART COOL TELECOM SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| VALIANT TELECOM SERVICE LIMITED | Private company limited by shares | Dissolved |
| SKY TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| APT TELECOM SERVICES LIMITED | Private company limited by shares | Live |
| DCN TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| Telecom Services Pvt Limited | Private company limited by shares | Live |
| V8 Telecom Services Limited | Private company limited by shares | Live |
| AMERICAN TELECOM SERVICES, (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| AMERICAN TELECOM SERVICES, (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| Telecom Services Asia Limited | Private company limited by shares | Live |
| ASIA-LINK TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| CHAIN TELECOM & SERVICES LIMITED | Private company limited by shares | Dissolved |
| CHINA TELECOM NETWORK SERVICES LIMITED | Private company limited by shares | Dissolved |
| COMPUTER AND TELECOM SERVICES LIMITED | Private company limited by shares | Live |
| BWF Telecom Consultancy Services Limited | Private company limited by shares | Live |
| TELECOM - NETWORK CONSULTING & SERVICES LIMITED | Private company limited by shares | Live |
| TELECOM DIGITAL SERVICES LIMITED | Private company limited by shares | Live |
| EPRO TELECOM SERVICES LIMITED | Private company limited by shares | Live |
| Excel Telecom Services Limited | Private company limited by shares | Live |
| HARMONY TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| HIMATIC TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| HOMEKING TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TELECOM NETWORK SERVICES LIMITED | Private company limited by shares | Dissolved |
| Macroview Telecom Services Limited | Private company limited by shares | Live |
| MAXCOM TELECOM SERVICES LIMITED | Private company limited by shares | Live |
| GOLD MEDAL TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| PACIFIC TELECOM SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISDOM TELECOM CONSULTANCY & SERVICES PVT. LIMITED | Private company limited by shares | Live |
| SPEEDA TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| STAR TELECOM SERVICES LIMITED | Private company limited by shares | Live Commenced dormancy on 22-Nov-2002 |
| SUNNY TELECOM SERVICES LIMITED | Private company limited by shares | Live |
| Pan Telecom ATM Systems and Services Limited | Private company limited by shares | Live |
| UNIQUE TELECOM SERVICES LIMITED | Private company limited by shares | Dissolved |
| SETEC TELECOM TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| SHAH Telecom Limited | Private company limited by shares | Live |
| Shark Telecom Limited | Private company limited by shares | Live |
| SHARON TELECOM LIMITED | Private company limited by shares | Live |
| SHARP TELECOM LIMITED | Private company limited by shares | Dissolved |
| SHARP TELECOM SERVICE LIMITED | Private company limited by shares | Dissolved |
| SHAUN TELECOM LIMITED | Private company limited by shares | Live |
| Shebataki Telecom Limited | Private company limited by shares | Live |
| SHENG LI TELECOM LIMITED | Private company limited by shares | Live |
| YU SHENG TELECOM LIMITED | | Live |
| Hong Kong Shengbo Telecom Limited | | Live |
| HK SHIHONG TRADE TELECOM LIMITED | Private company limited by shares | Live |
| SHINECITY TELECOM LIMITED | Private company limited by shares | Dissolved |
| SHINECITY TELECOM BD LIMITED | Private company limited by shares | Live |
| SHING TAI TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| WAN SHING TELECOM LIMITED | Private company limited by shares | Live |
| Shing Telecom Limited | Private company limited by shares | Live |
| WAI SHING TELECOM CO., LIMITED | Private company limited by shares | Dissolved |
| Yu Shing Telecom (Hong Kong) Co., Limited | Private company limited by shares | Live |
| YUNG SHING TELECOM LIMITED | Private company limited by shares | Dissolved |
| SHREE TELECOM CO., LIMITED | Private company limited by shares | Live |
| Shrine Telecom Service Co., Limited | Private company limited by shares | Dissolved |
| Shuangbao Telecom Company Limited | | Live |
| SHUANGZHI Telecom LIMITED | Private company limited by shares | Live |
| Kam Shui Telecom Limited | Private company limited by shares | Live |
| JIN SHUO INTERNATIONAL TELECOM LIMITED | Private company limited by shares | Dissolved |
| SICHO TELECOM (HK) LIMITED | Private company limited by shares | Live |
| ONE SIDE TELECOM (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| SIFA TELECOM LIMITED | Private company limited by shares | Live |
| SIGNAL TELECOM CO. LIMITED | Private company limited by shares | Dissolved |
| SIGNAL NETWORK TELECOM LIMITED | Private company limited by shares | Dissolved |
| SIGTO TELECOM (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Silver Fox Telecom Limited | Private company limited by shares | Live |
| Simtoo Telecom China Co. Limited | Private company limited by shares | Live |
| SINCERE TELECOM LIMITED | Private company limited by shares | Live |
| SUN SING TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |