| China Agrochem Science Limited | Private company limited by shares | Live |
| CHINA ANTI-AGING SCIENCE CENTER LIMITED | | Live |
| HK CHINA ARTWORK SCIENCE APPRAISAL LIMITED | Private company limited by shares | Live |
| CHINA AEROSPACE SCIENCE CENTER LIMITED | Private company limited by shares | Live |
| CHINA SCIENCE CENTER SHARES LIMITED | Private company limited by shares | Live |
| LAB SCIENCE CHINA CO., LIMITED | Private company limited by shares | Live |
| CHINA AEROSPACE SCIENCE COSMETICS GROUP LIMITED | Private company limited by shares | Live |
| CHINA DANDAO SCIENCE RESEARCH CO., LIMITED | Private company limited by shares | Live |
| CHINA FENGSHUI SCIENCE RESEARCH INSTITUTION LIMITED | Private company limited by shares | Live |
| CHINA FIBROCELL SCIENCE LIMITED | Private company limited by shares | Dissolved |
| CHINA GIS SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| CHINA SCIENCE DEVELOPING GROUP LIMITED | Private company limited by shares | Dissolved |
| China Science Equipment (HK) Limited | Private company limited by shares | Live |
| CHINA SCIENCE HOLDING GROUP LIMITED | | Live |
| CHINA SCIENCE ART INVESTMENT LIMITED | Private company limited by shares | Live |
| China Science Investment Co., Limited | | Live |
| China Science International Investment Company Limited | Private company limited by shares | Live |
| China Science Microelectronics Co., Limited | | Live |
| China Precision Science Group Limited | Private company limited by shares | Live |
| CHINA SCIENCE PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| China Science Publishing House Co., Limited | | Live |
| CHINA SCIENCE CULTURE PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| CHINA SCIENCE TECH GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG CHINANI SCIENCE COMPANY LIMITED | Private company limited by shares | Live |
| CHINES MEDICAL SCIENCE ASSOCIATION CO., LIMITED | Private company limited by shares | Live |
| MERRILL CHIP SCIENCE & TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| CINCL LIFE SCIENCE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| CINIA Sweden (Hongkong) Environmental Science & Technology Co. Limited | Private company limited by shares | Dissolved |
| City Brain Science And Engineering Co., Limited | Private company limited by shares | Live |
| CITYMAX CROP SCIENCE (HK) CO., LIMITED | Private company limited by shares | Live |
| ZH CLASSICS SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Clear Data Science Limited | Private company limited by shares | Live |
| CLOUDS & MUD SCIENCE AND TRADE CO., LIMITED | Private company limited by shares | Live |
| H & RG SCIENCE CO., LIMITED | Private company limited by shares | Live |
| S&E SCIENCE CO., LIMITED | Private company limited by shares | Dissolved |
| NEW SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Z.D SCIENCE CO., LIMITED | Private company limited by shares | Live |
| HK AN JU BAO SCIENCE CO., LIMITED | Private company limited by shares | Live |
| APM SCIENCE CO., LIMITED | Private company limited by shares | Live |
| HK OWL SCIENCE CO., LIMITED | Private company limited by shares | Live |
| ith Science Co., Limited | Private company limited by shares | Live |
| ASIA SCIENCE CO., LIMITED | Private company limited by shares | Dissolved |
| JOREED (ASIA) SCIENCE CO., LIMITED | Private company limited by shares | Live |
| ASIA SCIENCE PUBLISHER CO., LIMITED | Private company limited by shares | Live |
| AUKOO Science Co., Limited | | Live |
| AVANT SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Aylin Science & Trade Co., Limited | Private company limited by shares | Live |
| Baiye Science Co., Limited | Private company limited by shares | Live |
| BASIC SCIENCE CO., LIMITED | | Live |
| Best Science instrument HK Co., Limited | | Live |
| CAIRUI SCIENCE (HK) CO., LIMITED | Private company limited by shares | Live |
| Chaoyang Science and Trade Co., Limited | Private company limited by shares | Live |
| CHICO CROP SCIENCE CO., LIMITED | Private company limited by shares | Live |
| HK CHIGOO SCIENCE CO., LIMITED | Private company limited by shares | Live |
| USA Wonder Crop Science Co., Limited | | Live |
| SCIENCE DISCOVERY CO., LIMITED | Private company limited by shares | Live |
| HWX SCIENCE & ELECTRIC CO., LIMITED | | Live |
| GRAND SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Hileap Biomedical Science Co., Limited | Private company limited by shares | Live |
| CHASE SCIENCE (HK) CO., LIMITED | Private company limited by shares | Live |
| Yunfei Hongda Science Instrument Co., Limited | Private company limited by shares | Live |
| Horizon Science & Trade Co., Limited | Private company limited by shares | Live |
| CIB Science Instruments Co., Limited | | Live |
| Jidian Science Co., Limited | Private company limited by shares | Live |
| KEANYU SCIENCE CO., LIMITED | Private company limited by shares | Live |
| KERUN SCIENCE AND TRADE CO., LIMITED | Private company limited by shares | Live |
| HK LAIXIN SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Liangzi Science Co., Limited | Private company limited by shares | Live |
| LNNOVAY SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Luella Science Co., LIMITED | Private company limited by shares | Live |
| MIRACLE HK SCIENCE CO., LIMITED | Private company limited by shares | Live |
| PHOENIX SCIENCE (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| 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 |