| HK TOCO LC SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TONG DE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TOPONE SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Topone Science & Technology (H.K.) Company Limited | Private company limited by shares | Live |
| TOPS SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HongTong Science and Technology Trading Limited | Private company limited by shares | Live |
| Trinow Science Technology Limited | Private company limited by shares | Live |
| China Truespace Science & Technology Limited | Private company limited by shares | Live |
| TYMIN SCIENCE & TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| UNISENSE SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| UPBRIGHT SCIENCE TECHNOLOGY HK LIMITED | Private company limited by shares | Live |
| VAHAN SCIENCE AND TECHNOLOGY GROUP CORPORATION LIMITED | Private company limited by shares | Live |
| VAPPS SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Via.nulla Science and Technology International Limited | | Live |
| Vision Science and Technology Company Limited | Private company limited by shares | Live |
| People's Voice (China) Science & Technology Limited | Private company limited by shares | Live |
| HK WALI SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WANGCAI SCIENCE & TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HK WANGCHAO SCIENCE TECHNOLOGY INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| Wealth Science & Technology Limited | Private company limited by shares | Live |
| HK Weichuangli Science & Technology Co., Limited | Private company limited by shares | Live Commenced dormancy on 22-Sep-2015 |
| WEIJIAN SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHONGQING WELKIN SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| WENDING SCIENCE TECHNOLOGY (SHENZHEN) LIMITED | Private company limited by shares | Live |
| WildRabbit Science and technology Limited | Private company limited by shares | Live |
| WING SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Wingson Science and Technology Company Limited | Private company limited by shares | Live |
| Wirtun Science & Technology Co., Limited | Private company limited by shares | Live |
| HK ONK DE WISDOM SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Wise Network Science and Technology Consultancy Limited | Private company limited by shares | Live |
| Worth Science And Technology Limited | Private company limited by shares | Live |
| Chinese Wei Xiao Yao Science And Technology Limited | Private company limited by shares | Live |
| HK XIEXIN SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| XILE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| XIMODA SCIENCE AND TECHNOLOGY (H.K) LIMITED | Private company limited by shares | Live |
| XINDI SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| JIA XING SCIENCE & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| RUN XING SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HUA XING SCIENCE & TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| Xinguo Science & Technology (HK) Limited | | Live |
| Xinyi Science Technology (Hongkong) Company Limited | Private company limited by shares | Live |
| HE XIONG SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| XIZHI SCIENCE AND TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Xynai Science And Technology Limited | Private company limited by shares | Live |
| USA YANGDEFA SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| YANXIN ENVIROMENTAL SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Gold yard Science and Technology Investment Limited | Private company limited by shares | Live |
| SHENZHEN YEEGO SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YIDESHUI SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK YIMASINO SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YINGCHUN SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Yintai(Hongkong) Science And Technology Limited | Private company limited by shares | Live |
| YOUXIONG SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YOUYU SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YUANYUZHOU SCIENCE AND TECHNOLOGY (CHINA) LIMITED | | Live |
| YUEJING SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Yueshao Science Technology Limited | | Live |
| Yunda Science and Technology Limited | Private company limited by shares | Live |
| YUNNAN BMF SCIENCE AND TECHNOLOGY LIMITED | | Live |
| Zahir Science & Technology Investments (HK) Limited | | Live |
| Zenith & Van Science and Technology Company Limited | Private company limited by shares | Live |
| Zeno Science and Technology Limited | Private company limited by shares | Live |
| SHENZHEN ZEPPELIN SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK ZHICHENG SCIENCE AND TECHNOLOGY ILLUMINATION LIMITED | Private company limited by shares | Live |
| ZHIYOU SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGANDA SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Zhongcheng Science and Technology Limited | Private company limited by shares | Live |
| ZHONGDINGHUATAI SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGJI UNITE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGJINCHUANGRONG SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGRONGJVXIN SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGYAN SCIENCE AND TECHNOLOGY CO., LIMITED | | Live |
| TECH-RICH SCIENCE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| TECOM SCIENCE (HONGKONG) LIMITED | Private company limited by shares | Live |
| Tengda Science And Technology Co., Limited | Private company limited by shares | Live |
| TENGSHENG SCIENCE & TRADE LIMITED | Private company limited by shares | Live |
| Testo Science Limited | | Live |
| TEWANG SCIENCE & TECHNOLOGY HK COMPANY LIMITED | Private company limited by shares | Dissolved |
| THERAPY SCIENCE LIMITED | Private company limited by shares | Live |
| Thinmed Science (HK) Limited | Private company limited by shares | Live |
| HARMONY THREE-DIMENSIONAL SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BEAUTY THRU SCIENCE LIMITED | Private company limited by shares | Dissolved |
| TIANBOYA SCIENCE AND TRADE LIMITED | Private company limited by shares | Dissolved |
| TianXi Science & Technology Company Limited | Private company limited by shares | Live |
| GUANGDONG FOSHAN TIANYUAN SCIENCE AND TECHNOLOGY CERAMICS LIMITED | Private company limited by shares | Live |
| TIDESTONE SCIENCE AND TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Scigene Time Science And Technology Limited | Private company limited by shares | Live |
| TITAN SCIENCE AND TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| HK LIAOYOU TOEC SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TOMORROW'S SCIENCE TODAY, LIMITED | Private company limited by shares | Dissolved |
| TONGGONG XIECHENG SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ZOE SCIENCE TRADE LIMITED | Private company limited by shares | Live |
| Science World Trade Co., Limited | | Live |
| ZHITU SCIENCE AND TRADE CO., LIMITED | Private company limited by shares | Live |
| Elite Science International Trade Limited | Private company limited by shares | Live |
| HK East Grand Medicine Science Technology Trade Limited | Private company limited by shares | Live |
| OSEN Science Trade Limited | Private company limited by shares | Live |
| HK FRODA SCIENCE AND TECHNOLOGY TRADE CO., LIMITED | Private company limited by shares | Live |
| LUSTER SCIENCE AND TECHNOLOGY TRADE LIMITED | Private company limited by shares | Live |
| BIO YUNG TRADE SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |