| Potential Science and Technology Limited | Private company limited by shares | Live |
| Power Science Limited | Private company limited by shares | Live |
| POWERLEADER SCIENCE & TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| POWLITECH SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Science Beauty Printing Company Limited | Private company limited by shares | Live |
| YinCai Science & Technology Printing Co., Limited | Private company limited by shares | Live |
| PRISM ART AND SCIENCE ACADEMY LIMITED | Private company limited by shares | Live |
| ROCKET SCIENCE PRODUCTIONS ASIA LIMITED | Private company limited by shares | Live |
| CHINESE SCIENCE & CULTURE PROMOTION LIMITED | Private company limited by shares | Dissolved |
| HK SCIENCE PARK PROPERTY AGENCY LIMITED | | Live |
| Prosper Science Technology Limited | Private company limited by shares | Dissolved |
| Prosper Science And Technology Co., Limited | Private company limited by shares | Live |
| PROSPERITYS (HONGKONG) SCIENCE INNOVATION LIMITED | Private company limited by shares | Live |
| HUMANITIES SCIENCE PUBLICATIONS LIMITED | Private company limited by shares | Live |
| Science Publisher Limited | Private company limited by shares | Live |
| SCIENCE & ECONOMY PUBLISHING CO. LIMITED | Private company limited by shares | Dissolved |
| MARTIN SCIENCE PUBLISHING LIMITED | Private company limited by shares | Live |
| PURE SCIENCE OF SKIN LIMITED | Private company limited by shares | Live |
| Purevox Science and Technology Co., Limited | | Live |
| QFENG SCIENCE TRADE LIMITED | Private company limited by shares | Live |
| QUANXIN SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| QUSHUI SCIENCE AND TECHNOLOGY (HK) LIMITED | | Live |
| Qushui Science and Technology International Limited | | Live |
| Big Gas Racing Science Limited | Private company limited by shares | Live |
| RARITAN SCIENCE TRADING LIMITED | Private company limited by shares | Live |
| Dual Reality for Bespoke Education in Science & Technology Limited | Private company limited by shares | Live |
| RECO SCIENCE HK LIMITED | Private company limited by shares | Live |
| RE-CREATION SCIENCE FAR EAST COMPANY LIMITED | Private company limited by shares | Dissolved |
| REFOND SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SCIENCE RESEARCH LIMITED | Private company limited by shares | Live |
| China Better Future Education Science Research Limited | | Live |
| CHINA SCIENCE COMMUNICATION RESEARCH CENTER LIMITED | Private company limited by shares | Dissolved |
| CHINA TAO XINGZHI EDUCATION SCIENCE RESEARCH INSTITUE LIMITED | Private company limited by shares | Dissolved |
| CYBERNAUT SCIENCE AND INNOVATION RESEARCH LIMITED | Private company limited by shares | Live |
| NATURE SPIRIT SCIENCE RESEARCH LIMITED | Private company limited by shares | Live |
| HONG KONG REVELATOR SCIENCE & TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| Richor(Hong Kong) Science and Technology Co., Limited | | Live |
| SHANGHAITP RIVER SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Dr. Robot Creative Science Limited | Private company limited by shares | Live |
| Rockefeller Behavioral Science Limited | Private company limited by shares | Live |
| Rocket Science HK Limited | Private company limited by shares | Live |
| Rodeo (Hong Kong) Life Science Co. Limited | Private company limited by shares | Dissolved |
| Rok-It Science Universal Limited | Private company limited by shares | Live |
| FRANCE RONG YAN BEAUTY SCIENCE TRANING LIMITED | Private company limited by shares | Live |
| RONGDA SCIENCE AND TECHNOLOGY HK CO., LIMITED | Private company limited by shares | Live |
| RONGTONG SIHAI SCIENCE AND TRADE CO., LIMITED | Private company limited by shares | Live |
| ROSENTEC SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TOWA ROZAI SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| RUAN KE Science and Technology Co., Limited | Private company limited by shares | Live |
| Ruidehengxin Science & Technology (HONGKONG) Company Limited | Private company limited by shares | Live |
| HK RUIKE BIOLOGICAL SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| RUKH SCIENCE TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| RUN-SHENG HK SCIENCE & TECHNOLOGY TRADING LIMITED | Private company limited by shares | Live |
| SAIL DIGITAL SCIENCE COLLEGE (HK) LIMITED | Private company limited by shares | Dissolved |
| SAKESI WEIER SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Salem Science Limited | Private company limited by shares | Live |
| UK SANGGE CROP SCIENCE CO., LIMITED | Private company limited by shares | Dissolved |
| Sanyou International Education Science And Technology Company Limited | Private company limited by shares | Live |
| CAMBRIDGE SCIENCE SUMMER SCHOOL LIMITED | Private company limited by shares | Dissolved |
| GRADUATE SCHOOL OF CHINESE MANAGEMENT SCIENCE LIMITED | Private company limited by shares | Dissolved |
| SCOUT SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| BYVISION SECURITY SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ALL SECURITY & NETWORK SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| SCIENCE TECHNOLOGY SECURITY PROTECTION F7 GROUP LIMITED | Private company limited by shares | Live |
| Anxing Security Science & Technology Co., Limited | Private company limited by shares | Live |
| Sentient Science Limited | Private company limited by shares | Live |
| HK Serene Science and Technology Co., Limited | | Live |
| SAILING SCIENCE & SERVICE LIMITED | Private company limited by shares | Live |
| Zhi Shan Science Co., Limited | | Live |
| SHANG HAI QUE YOU SCIENCE CO., LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI PEOPLE SCIENCE HOLDING LIMITED | Private company limited by shares | Live |
| SHANGHAI RENMIN SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SHAP SCIENCE & TECHNOLOGY DEV. (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SCIENCE INT'L TECHNOLOGY SHARE (HK) LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN KAILIDA SCIENCE AND TECHNOLOGY SHARE LIMITED | Private company limited by shares | Live |
| RBK Science Shares Limited | Private company limited by shares | Live |
| SHARK SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN-HONG KONG MEDICAL SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| GERMANY SHIBALU CROP SCIENCE LIMITED | Private company limited by shares | Live |
| Shihong Science and Trade Co., Limited | Private company limited by shares | Live |
| HK SHIHUI SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SHING LEE SCIENCE & TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| SHIROUMA SCIENCE (HK) LIMITED | Private company limited by shares | Dissolved |
| HK ShunYuan Science Information Limited | Private company limited by shares | Live |
| SIEMNGS (HK) SCIENCE TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Asia Silica Science Association Co. Limited | Private company limited by shares | Live |
| HK SILIYANG SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SILK ROAD SCIENCE INNOVATION HK LIMITED | Private company limited by shares | Live |
| GENERAL SIMULATOR SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINCETIMES HK SCIENCE COMPANY LIMITED | Private company limited by shares | Live |
| Sine Science Tech Limited | Private company limited by shares | Live |
| SING TAI INTERNATIONAL LIFE SCIENCE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Ngai Sing Electronic Science and Technology Limited | Private company limited by shares | Live |
| Singa Science And Technology Limited | Private company limited by shares | Live |
| HONG KONG SINO-POWER SCIENCE & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOTT SCIENCE & TECHNOLOGY (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| SIPHONE SCIENCE AND TECHNOLOGY LIMITED | | Live |
| Siuma Science Education Limited | | Live |
| Sizy Science and Technology Co., Limited | Private company limited by shares | Live |