| 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 |
| PT TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BO TAI TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| NEW SKY TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| JSL Telecom Technology Co. Limited | Private company limited by shares | Live |
| Technology Telecom Limited | Private company limited by shares | Live |
| Sky Telecom Technology Limited | Private company limited by shares | Live |
| Able Telecom Technology Limited | Private company limited by shares | Dissolved |
| ASIA TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TECHNOLOGY TELECOM (ASIA) LIMITED | Private company limited by shares | Live |
| ASIAN TELECOM & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Baike Telecom Technology Limited | Private company limited by shares | Live |
| BROADNET TELECOM TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CEDAR TELECOM TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| Central Telecom Technology Group Limited | Private company limited by shares | Dissolved |
| CHINA TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK DEZHEN TELECOM. TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DIGITAL TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| DLEE TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| FASTWIN TECHNOLOGY TELECOM LIMITED | Private company limited by shares | Dissolved |
| YING FUNG LUNG TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GRAND TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA NEW TELECOM TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| IAD10000 TELECOM & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| JIMMY ELECTRONIC TELECOM TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| MICROSOFE TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MINGYI TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MOBILITY TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Pinpin Technology & Telecom Limited | | Live |
| TELECOM PLUS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TELECOM PLUS TECHNOLOGY HOLDINGS LIMITED | Private company limited by shares | Live |
| Polestar Telecom Technology Limited | | Live |
| Rayfond Telecom Technology Limited | Private company limited by shares | Live |
| Reach Telecom Technology Limited | Private company limited by shares | Live |
| TELECOM RESOURCES TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SKYNET TELECOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SOAR TELECOM TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |