| EXCEL SOURCE TELECOM INFRASTRUCTURE LIMITED | Private company limited by shares | Live Commenced dormancy on 17-Jul-2013 |
| SKY SOURCE TELECOM INSTRUMENT MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| SOUTH-EAST ASIA TELECOM ("SEAT") COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUTHEAST TELECOM HOLDING GROUP LIMITED | Private company limited by shares | Live |
| CHINA SOUTHEAST TELECOM (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SOUTHERN TELECOM LIMITED | Private company limited by shares | Dissolved |
| SOUTHERN TELECOM LIMITED | Private company limited by shares | Live |
| SPACE TELECOM LIMITED | Private company limited by shares | Live |
| NEW SPACE TELECOM LIMITED | Private company limited by shares | Live |
| TELECOM SPARKLE LIMITED | Private company limited by shares | Live |
| SPEAK TELECOM LIMITED | Private company limited by shares | Live |
| TELECOM SPECIALS MOBILE PHONE LIMITED | Private company limited by shares | Dissolved |
| NEW SPEED TELECOM LIMITED | Private company limited by shares | Live |
| SPHERIS TELECOM LIMITED | Private company limited by shares | Live |
| SPIRIT TELECOM LIMITED | Private company limited by shares | Live |
| SPIX TELECOM LIMITED | Private company limited by shares | Live |
| SPORT TELECOM LIMITED | Private company limited by shares | Live |
| SPRINT TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| Sprite Telecom Limited | Private company limited by shares | Live |
| TELECOM SQUARE HK LIMITED | Private company limited by shares | Live |
| TELECOM SQUARE TRADING LIMITED | Private company limited by shares | Dissolved |
| SROT TELECOM LIMITED | Private company limited by shares | Live |
| STAR TELECOM PCN LIMITED | Private company limited by shares | Dissolved |
| STAR TELECOM LIMITED | Private company limited by shares | Live |
| ASIA STAR TELECOM LIMITED | Private company limited by shares | Live |
| FINE STAR TELECOM LIMITED | Private company limited by shares | Dissolved |
| GOLD STAR TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| STAR TELECOM HOLDING LIMITED | Private company limited by shares | Live |
| PACIFIC STAR TELECOM LIMITED | Private company limited by shares | Dissolved |
| STAR TELECOM PROPERTIES LIMITED | Private company limited by shares | Live |
| TRUE STAR TELECOM CO., LIMITED | Private company limited by shares | Live |
| STARISE TELECOM LIMITED | Private company limited by shares | Live |
| STARRY SKY TELECOM LIMITED | | Live |
| STARWAVE TELECOM LIMITED | Private company limited by shares | Live |
| STARWAY TELECOM LIMITED | Private company limited by shares | Live |
| STONEHENGE TELECOM HONG KONG LIMITED | Private company limited by shares | Dissolved |
| TELECOM STORE LIMITED | Private company limited by shares | Dissolved |
| STRAITS TELECOM LIMITED | Private company limited by shares | Live |
| Strand Telecom HK Limited | Private company limited by shares | Live |
| STARS AND STRIPES TELECOM LIMITED | Private company limited by shares | Dissolved |
| SUMMER TELECOM LIMITED | Private company limited by shares | Live |
| NINGBO SUMMIT TELECOM CO., LIMITED | Private company limited by shares | Live |
| Summits Telecom Limited | Private company limited by shares | Live |
| SUNFLEX TELECOM LIMITED | Private company limited by shares | Dissolved |
| SUNFLOWER TELECOM LIMITED | Private company limited by shares | Dissolved |
| SUNJET TELECOM LIMITED | Private company limited by shares | Live |
| SUNRICE TELECOM PROVIDER LIMITED | Private company limited by shares | Live |
| SUNRISE TELECOM LIMITED | Private company limited by shares | Dissolved |
| Asia Sunrise Telecom Limited | Private company limited by shares | Live |
| SUNSEA Telecom Hong Kong Limited | Private company limited by shares | Live |
| SUNSEA TELECOM TECH HONG KONG LIMITED | Private company limited by shares | Live |
| SUNSHINE TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNSHINE TELECOM LIMITED | Private company limited by shares | Live |
| SUNSTONE TELECOM CO., LIMITED | Private company limited by shares | Live |
| SUNTECH TELECOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TELECOM SUPERMARKET LIMITED | Private company limited by shares | Live |
| SUPERSTAR TELECOM HK LIMITED | Private company limited by shares | Live |
| Superyun Telecom Limited | Private company limited by shares | Dissolved |
| KA WAH TELECOM SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| SUPREME TELECOM LIMITED | Private company limited by shares | Dissolved |
| SURE WIN TELECOM LIMITED | | Live |
| SURPASS TELECOM COMPANY LIMITED | Private company limited by shares | Live |
| Surplus Telecom Company Limited | Private company limited by shares | Live |
| SWEDEN TELECOM LIMITED | Private company limited by shares | Dissolved |
| SWILLTECH TELECOM LIMITED | Private company limited by shares | Live |
| SWING TELECOM LIMITED | Private company limited by shares | Dissolved |
| SWOT TELECOM LIMITED | Private company limited by shares | Live |
| SYMPHONY TELECOM ASIA LIMITED | Private company limited by shares | Dissolved |
| SANDA TELECOM SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOLAR SYSTEM TELECOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAFER TELECOM SYSTEM LIMITED | Private company limited by shares | Dissolved |
| PAN TELECOM SYSTEMS LIMITED | Private company limited by shares | Live |
| Dragon Telecom Systems Limited | Private company limited by shares | Dissolved |
| HUTCHISEN TELECOM SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Tadiran Telecom (Asia) APAC Limited | | Live |
| STAR TELECOM TAIWAN LIMITED | Private company limited by shares | Dissolved |
| Taiyang Telecom Co., Limited | | Live |
| TALENT TELECOM LIMITED | Private company limited by shares | Dissolved |
| TAMA TELECOM LIMITED | Private company limited by shares | Live |
| TARGET TELECOM LIMITED | Private company limited by shares | Dissolved |
| Teal Telecom Limited | Private company limited by shares | Live |
| TEAM TELECOM LIMITED | Private company limited by shares | Live |
| TEAMWORK TELECOM LIMITED | Private company limited by shares | Dissolved |
| Tai Pei Telecom Tech Limited | Private company limited by shares | Live |
| SUN TECH TELECOM LIMITED | Private company limited by shares | Live |
| TUNG TECH TELECOM & ENGINEERING LIMITED | Private company limited by shares | Live |
| HAND TECH TELECOM LIMITED | Private company limited by shares | Dissolved |
| JKANG TELECOM TECH LIMITED | Private company limited by shares | Dissolved |
| ZTE NETWORK TELECOM TECH LIMITED | Private company limited by shares | Live |
| TECHNIQUE TELECOM LIMITED | Private company limited by shares | Dissolved |
| TECHNO TELECOM LIMITED | Private company limited by shares | Dissolved |
| Centaurus Telecom Technologies Group Limited | | Live |
| GENERAL TELECOM TECHNOLOGIES CO., LIMITED | Private company limited by shares | Dissolved |
| ICOM TECHNOLOGIES & TELECOM LIMITED | Private company limited by shares | Live |
| Kravert Telecom Technologies Limited | Private company limited by shares | Live |
| UNITED TELECOM TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TECHNOLOGY TELECOM LIMITED | Private company limited by shares | Dissolved |
| IP TELECOM & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| IW TECHNOLOGY TELECOM LIMITED | Private company limited by shares | Live |