| Frontier Science Publishing Co., Limited | | Live |
| Ruixing Science Co., Limited | | Live |
| TECHWIN SCIENCE (HK) CO., LIMITED | Private company limited by shares | Live |
| SJC Science And Trade Co., Limited | Private company limited by shares | Live |
| Winbo Bio Science Instrument Co., Limited | Private company limited by shares | Live |
| Wisllent Science & Trade Co., Limited | | Live |
| XINYING SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Xinyuan Science and Trade Co., Limited | Private company limited by shares | Live |
| ZHONGSHENG SCIENCE AND TRADE CO., LIMITED | Private company limited by shares | Live |
| Science Of Coaching Limited -The- | Private company limited by shares | Live |
| COCREAT SCIENCE TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Collect Intelligence Science & Technology Limited | Private company limited by shares | Live |
| Asian College of Exercise and Sports Science Limited | Company limited by guarantee | Live |
| ORIENTAL ART SCIENCE COLLEGE LIMITED | Private company limited by shares | Live |
| RICH OF COLOUR NETWORK SCIENCE AND TECHNOLOGY CO LIMITED | Private company limited by shares | Live |
| HONGTAI SCIENCE COMMERCIAL CO., LIMITED | Private company limited by shares | Live |
| Science and Technology Commercial Applications Limited | Private company limited by shares | Live |
| GT Science and Culture Communication Co., Limited | Private company limited by shares | Live |
| U.S. Compton Heat Science and Technology International Limited | Private company limited by shares | Dissolved |
| WNX COMPUTER SCIENCE LIMITED | Private company limited by shares | Dissolved |
| HKU COMPUTER SCIENCE ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| WEIHENGDA COMPUTER SCIENCE CO., LIMITED | Private company limited by shares | Live |
| COMPUTER SCIENCE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| FOSHAN CONGRONG SCIENCE COSMETIC CO., LIMITED | Private company limited by shares | Live |
| Science Construction Group Limited | | Live |
| Genchem Science Consulting (HK) Co., Limited | Private company limited by shares | Live |
| China-UK Science Education Consulting Limited | | Live |
| IORI SCIENCE & TECHNOLOGY CONSULTING LIMITED | | Live |
| HORIZON CONSUMER SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| Corporate & Asset Science Limited | Private company limited by shares | Live |
| LEGEND SCIENCE CORPORATE (HK) LIMITED | Private company limited by shares | Live |
| SCIENCE CORPORATION LIMITED | Private company limited by shares | Live |
| NEW SCIENCE CORPORATION LIMITED | Private company limited by shares | Live |
| Revenue Science Corporation Limited | Private company limited by shares | Live |
| Pure Science Cosmetics Limited | Private company limited by shares | Live |
| Wisdom & Courage Science and Technology Company Limited | | Live |
| C.P. SCIENCE (HK) LIMITED | Private company limited by shares | Dissolved |
| CQHEALTH SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CR-CP Life Science Advisor Limited | Private company limited by shares | Live |
| CREATE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CREATE SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| RT CREATION SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| Science & Creation Technology Co., Limited | Private company limited by shares | Live |
| CREATION SCIENCE & TECHNOLOGY GROUP (H.K.) LIMITED | Private company limited by shares | Dissolved |
| CREATIVE SCIENCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEWHOPE CREATIVE SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| LG Crop Science Limited | Private company limited by shares | Live |
| MCL Crop Science Limited | | Live |
| CRYOELECTRIC SCIENCE LIMITED | Private company limited by shares | Live |
| CHINA SCIENCE & TECHNOLOGY CAPITAL SERVICES (CSTCS) LIMITED | Private company limited by shares | Live |
| CTECH SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| CHINA INTERNATIONAL SCIENCE EDUCATION CULTURE INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| Elephant Eden Culture & Science Service Limited | Private company limited by shares | Live |
| Park Culture (HK) Science And Technology Limited | Private company limited by shares | Live |
| DAISHIN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| CHINA DAOYUANTANG BIOMEDICINE SCIENCE ACADEMY LIMITED | Private company limited by shares | Live |
| DATA SCIENCE LIMITED | Private company limited by shares | Live |
| Data Science Solutions Limited | Private company limited by shares | Live |
| Strategic Data Science Limited | | Live |
| DATIAN SCIENCE TECHNOLOGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DAWSON SCIENCE ASIA LIMITED | Private company limited by shares | Dissolved |
| Daxin Science Limited | Private company limited by shares | Live |
| DAYLAMP SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| DEAY SCIENCE & TECHNOLOGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| DEHAO SCIENCE AND TECHNOLOGY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| DELTEK SCIENCE LIMITED | Private company limited by shares | Live |
| DERMA SCIENCE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| DERMALIGHT SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| CHUNG WAH SCIENCE & ELECTRONIC DESIGN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ShenZhen Dexinrong Science and Technology Co., Limited | Private company limited by shares | Live |
| NINGBO DEYI SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Deze Science And Technology Limited | | Live |
| DIGESTIVE SCIENCE PUBLISHING CO. LIMITED | Private company limited by shares | Dissolved |
| DIGIT SCIENCE LIMITED | Private company limited by shares | Live |
| DIGITAL SCIENCE LIMITED | Private company limited by shares | Dissolved |
| DOERS KNOWLEDGE DISC BEHAVIORAL SCIENCE LIMITED | Private company limited by shares | Live |
| DOMINIC SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DONGRUIYISHENG (HK) SCIENCE & TRADE LIMITED | Private company limited by shares | Live |
| HK Dongxing Science And Technology Co., Limited | Private company limited by shares | Live |
| DoubleH Science and Technology Co., Limited | Private company limited by shares | Live |
| DOUBLELINE SCIENCE LIMITED | Private company limited by shares | Live |
| (CHINA) DRAGON SCIENCE AND TECHNOLOGY CULTURE MEDIA LIMITED | Private company limited by shares | Dissolved |
| DUTCH-BRABANT SCIENCE AND EDUCATION CONSULTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SCIENCE DYNAMICS ASIA LIMITED | Private company limited by shares | Dissolved |
| HK DY-SHITONG SCIENCE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GREEN FOREST EARLY CHILDHOOD EDUCATION SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG EARTH EXPLOIT SCIENCE LIMITED | Private company limited by shares | Live |
| FAR EAST SCIENCE COMPANY, LIMITED | Private company limited by shares | Dissolved |
| FAR EAST BUSINESS SCIENCE AND TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Glory East Science & Technology Limited | Private company limited by shares | Live |
| Trade Science Far East Limited | | Live |
| EAST SCIENCE TRADING LIMITED | Private company limited by shares | Live |
| EASTRIVER SCIENCE AND TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Live |
| Eastriver Science And Technology (H.K.) Limited | Private company limited by shares | Dissolved |
| SCIENCE ECCENTRIC LIMITED | | Live |
| ECO-LIFE SCIENCE LIMITED | Private company limited by shares | Live |
| CHINA ECOLOGICAL SCIENCE ACADEME LIMITED | Private company limited by shares | Dissolved |
| HK PENGCHENG ECOLOGICAL SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| United Ecological Science Organization Group Limited | Private company limited by shares | Live |
| TA Ecology Science Limited | Private company limited by shares | Live |