| YOUFANG NEW ENERGY SCIENCE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| Engineering Science Limited | Private company limited by shares | Live |
| SCIENCE AND ENGINEERING RESEARCH CENTER LIMITED | Private company limited by shares | Live |
| Groundwater Science and Engineering Limited | Private company limited by shares | Live |
| SCIENCE RESEARCH MACHINERY ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Science & Engineering Research Limited | Private company limited by shares | Live |
| NGOs Science Trading & Engineering Consultant Company Limited | Private company limited by shares | Live |
| Enlace Science Limited | | Live |
| USA ENRUITE CROP SCIENCE LIMITED | Private company limited by shares | Dissolved |
| USA ENRUITE CROP SCIENCE LIMITED | Private company limited by shares | Live |
| SCIENCE (HK) ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| ALTON SCIENCE ENTERPRISES LIMITED | Private company limited by shares | Live |
| HK Ecological Environment Protection Science and Technology Association Limited | Private company limited by shares | Live |
| Hong Kong Environmental Science & Technology Co. Limited | | Live |
| GRAND LIVE ENVIRONMENTAL SCIENCE CO. LIMITED | Private company limited by shares | Live |
| HONGKONG MILLER ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MING HUA ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Resume Environmental Science and Technology Co., Limited | Private company limited by shares | Live |
| Yuen Yuen Environmental Science And Technology Co. Limited | Private company limited by shares | Live |
| Guangdong ErJi Science And Innovation Co., Limited | Private company limited by shares | Live |
| E-SECURITY SCIENCE LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ESSENCE SCIENCE AND TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SCIENCE ESTHETIC SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| eSYSTEM SCIENCE LIMITED | Private company limited by shares | Live |
| Eureka Science Limited | Private company limited by shares | Live |
| EUROAM SCIENCE & TECHNOLOGY (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| EUROASIAN SYSTEM SCIENCE RESEARCH ASSOCIATION LIMITED | Private company limited by shares | Live |
| EVER SCIENCE LIMITED | Private company limited by shares | Live |
| Everthrive Science And Technology Limited | Private company limited by shares | Live |
| EXCELLENT SCIENCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| PKU SCIENCE & CULTURE EXCHANGE LIMITED | Private company limited by shares | Dissolved |
| SCIENCE EXPRESS LIMITED | Private company limited by shares | Dissolved |
| FASTSTAR SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Feida Science Co., Limited | | Live |
| FEIMI SCIENCE LIMITED | Private company limited by shares | Live |
| FEIYI SCIENCE E-COMMERCE CO., LIMITED | Private company limited by shares | Live |
| FENG MAO SCIENCE CO., LIMITED | Private company limited by shares | Live |
| Feng Mao Science Hongkong Co., Limited | Private company limited by shares | Live |
| Feng Xinquan Science and Trade Co., Limited | Private company limited by shares | Live |
| HONG KONG FLEET ELECTRONIC SCIENCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FLOW SCIENCE LIMITED | Private company limited by shares | Dissolved |
| May Flower Science Limited | | Live |
| FLYWOR SCIENCE CO., LIMITED | Private company limited by shares | Live |
| SCIENCE FOCUS LIMITED | Private company limited by shares | Live |
| FOCUS SCIENCE INSTRUMENTS (HK) LIMITED | Private company limited by shares | Dissolved |
| FOCUS SCIENCE INSTRUMENTS (HK) LIMITED | Private company limited by shares | Live |
| SCIENCE & HEALTH (HONGKONG) FOODSTUFF LIMITED | Private company limited by shares | Live |
| FOREFRONT SCIENCE AND TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tao Shu Kui Forensic Science Identification Limited | Private company limited by shares | Live |
| Forever Standard Science Co., Limited | Private company limited by shares | Live |
| Forever Science and Technology (Hong Kong) Limited | Private company limited by shares | Dissolved |
| GBA Science Forum Company Limited | | Live |
| GUANGDONG FOSHAN DATANG MINGZHU SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA ART & SOCIAL SCIENCE FOUNDATION LIMITED | Company limited by guarantee | Dissolved |
| EAST ASIAN HISTORY OF SCIENCE FOUNDATION LIMITED | Company limited by guarantee | Live |
| HAN MING EDUCATION & SCIENCE FOUNDATION LIMITED | Private company limited by shares | Live |
| HONG KONG FRAGRANT SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| FuChen (HK) Science and Technology Limited | Private company limited by shares | Live |
| FULAI BIOLOGY SCIENCE AND TECHNOLOGY CO., LIMITED | | Live |
| HK FUSHI ELECTRIC SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| FUTURE SCIENCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| FUTURE SCIENCE AWARDS FOUNDATION LIMITED -THE- | Company limited by guarantee | Live |
| China Future Science Academy Limited | Private company limited by shares | Live |
| China Future Science and Technology Promotion Association Limited | Private company limited by shares | Live |
| Future Science Media Publishing Co., Limited | Private company limited by shares | Live |
| FUTURE DIGITAL SCIENCE LIMITED | Private company limited by shares | Live |
| Incept Future Science Limited | Private company limited by shares | Live |
| FUTURE SCIENCE TECHNOLOGY LIMITED | | Live |
| Gaia Life Science International Co., Limited | Private company limited by shares | Live |
| GAIA HEALTH SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Garylangel Science And Technology (hk) Co., Limited | Private company limited by shares | Dissolved |
| Gemological Science International HK Limited | Private company limited by shares | Live |
| Gene Port Science Limited | Private company limited by shares | Live |
| GEO-TECHNIC SCIENCE LIMITED | Private company limited by shares | Dissolved |
| GEOWAY SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GERMANY BLUEBIRD SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| UK GESA CROP SCIENCE LIMITED | Private company limited by shares | Live |
| Giant (Shenzhen) Science & Technology Co., Limited | Private company limited by shares | Live |
| The Red Giant Science and Technology Group Limited | | Live |
| HK Gilson Science & Technology Co., Limited | Private company limited by shares | Live |
| GLOBAL TOP SCIENCE LIMITED | Private company limited by shares | Live |
| GLOBAL SCIENCE LIMITED | | Live |
| GLOBAL SCIENCE ANALYTICS LIMITED | | Live |
| A-TECH GLOBAL SCIENCE LIMITED | Private company limited by shares | Live |
| GLOBAL CENTURY SCIENCE GROUP LIMITED | Private company limited by shares | Live |
| Global Aerospace Science and Technology Corporation Limited | | Live |
| GLOBAL GENESIS SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Tegent Global Science Solution Limited | | Live |
| SCIENCE GLOBE LIMITED | Private company limited by shares | Dissolved |
| GLOBE OWNS INTERNATIONAL ONLINE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Globeshopping Internet Science And Technology (HK) Limited | Private company limited by shares | Live |
| SCIENCE GLORY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| GMIF (HK) SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GOLDEN EAGLE GIANT SCIENCE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Golden Eagle Science Group Co., Limited | | Live |
| GOLDEN GRAND MEDICAL SCIENCE (HK) LIMITED | Private company limited by shares | Dissolved |
| GOLDEN CENTURY SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Golden Rooster Science and Technology Company Limited | Private company limited by shares | Live |
| Good For You Science & Technology Co., Limited | Private company limited by shares | Live |
| GOOD LUCK SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |