| NMN (Hong Kong) Health Science Limited | Private company limited by shares | Live |
| HONG KONG HIGHLY SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live Commenced dormancy on 02-Aug-2001 |
| SCIENCE (HONG KONG) HOLDING LIMITED | | Live |
| HONG KONG HTYD SCIENCE & TECHNOLOGY LIMITED | | Live |
| HONG KONG INFINITY SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG INSTITUTION OF SCIENCE LIMITED -THE- | Company limited by guarantee | Live |
| Creditable (Hong Kong) Science Instrument Limited | Private company limited by shares | Live |
| HONG KONG YOUNG SCIENCE INSTRUMENT LIMITED | Private company limited by shares | Live |
| Integral Ad Science Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG SCIENCE KAOLIN COMPANY LIMITED | Private company limited by shares | Live |
| SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ABC SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Live |
| M Science Hong Kong Limited | Private company limited by shares | Live |
| GS SCIENCE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Science Sun (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG SCIENCE LAB LIMITED | | Live |
| HONG KONG SCIENCE LAB LIMITED | | Live |
| Brewer Science Hong Kong Limited | Private company limited by shares | Live |
| China Science and Research Hong Kong Company Limited | Private company limited by shares | Live |
| ELEMENT SCIENCE HONG KONG LIMITED | Private company limited by shares | Live |
| Fibrocell Science Hong Kong Limited | Private company limited by shares | Dissolved |
| HAPPY SCIENCE HONG KONG LIMITED | Company limited by guarantee | Live |
| Science City (Hong Kong) Investment Co. Limited | Private company limited by shares | Live |
| Ocean Science (Hong Kong) Limited | Private company limited by shares | Live |
| SCIENCE & RESEARCH (HONG KONG) LIMITED | Private company limited by shares | Live |
| Tea Science Society of Hong Kong Limited | Private company limited by shares | Live |
| Chubb (Hong Kong) science tech Limited | Private company limited by shares | Live |
| EXCELLENT SCIENCE AND TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GENERAL (HONG KONG) SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Mano Science Technology (Hong Kong) Limited | Private company limited by shares | Live |
| Mr. Science Technology & Media (Hong Kong) Limited | Private company limited by shares | Live |
| TOP VIEW SCIENCE & TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Life Science Consultant Limited | | Live |
| HONG KONG PU YIN LIFE SCIENCE LIMITED | Private company limited by shares | Live |
| In Hong Kong Life Science Limited | Private company limited by shares | Live |
| EZZ (Hong Kong) Life Science Limited | | Live |
| Hong Kong master science and technology Limited | | Live |
| MPORE (HONG KONG) MATERIAL SCIENCE LIMITED | Private company limited by shares | Live |
| HONG KONG MCKEY SCIENCE AND TECHNOLOGY COMPANY LIMITED | | Live |
| Hong Kong MedPure Life Science Limited | Private company limited by shares | Live |
| HONG KONG GOLD META SCIENCE LIMITED | Private company limited by shares | Dissolved |
| MOGE SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Live |
| Hong Kong Ngongfull Science and Technology Limited | Private company limited by shares | Live |
| Hong Kong Northern Science Company Limited | | Live |
| HONG KONG INSTITUTION OF OPTOELECTRONICS SCIENCE LIMITED | Company limited by guarantee | Live |
| PACIFIC SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Science of Parenting Association Limited | | Live |
| PROVISIONAL HONG KONG SCIENCE PARK COMPANY LIMITED | Private company limited by shares | Dissolved |
| PERBIO SCIENCE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Perpetual Science and Technology Limited | Private company limited by shares | Live |
| HONG KONG POLITICAL SCIENCE ASSOCIATION LIMITED | Company limited by guarantee | Live |
| PROTEC SCIENCE HONG KONG LIMITED | | Live |
| Hong Kong Ralon Medical & Science Limited | Private company limited by shares | Live |
| HONG KONG RENXIA SCIENCE LIMITED | Private company limited by shares | Live |
| Hong Kong Science Research Limited | Private company limited by shares | Live |
| HONG KONG SENGE SCIENCE LIMITED | Private company limited by shares | Live |
| SHENG HUA SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG SINO-ASIA SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Hong Kong Social Science Association Limited | Private company limited by shares | Live |
| Soft Science Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG STEM CELLS SCIENCE LIMITED | Private company limited by shares | Live |
| SYLOY SCIENCE (HONG KONG) LIMITED | Private company limited by shares | Live |
| Hong Kong Science And Technology Accelerator Limited | Private company limited by shares | Live |
| Aerospace Science and Technology (Hong Kong) Limited | Private company limited by shares | Live |
| A BEST SCIENCE AND TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG BESTCOM SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG GAO YAN BIOLOGY SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BIOSCIENCE SCIENCE AND TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| BOGUAN SCIENCE AND TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| Hong Wen Le Science Technology Co., Limited | Private company limited by shares | Live |
| LSD SCIENCE & TECHNOLOGY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG SC SCIENCE & TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONG KONG SZX SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Hong Kong Science And Technology Co., Limited | Private company limited by shares | Live |
| BRS Science & Technology Hong Kong Co., Limited | Private company limited by shares | Live |
| HONG KONG QI JIA SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Science Technology Co., Limited | Private company limited by shares | Live |
| Hong Kong Wei Chi Da Science And Technology Co., Limited | Private company limited by shares | Live |
| HONG KONG BO SI YUN WEI SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONG KONG CONTEMPORARY SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Hong Kong Dong Xin Science & Technology Limited | Private company limited by shares | Live |
| Hong Kong FHJR Science and Technology Limited | Private company limited by shares | Live |
| FINGER (HONG KONG) SCIENCE & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| FIRMUS SCIENCE AND TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Forest Science & Technology Hong Kong Limited | Private company limited by shares | Live |
| Hong Kong Garden Science & Technology Company Limited | Private company limited by shares | Live |
| Hong Kong Genesis Science Technology Limited | Private company limited by shares | Live |
| HONG KONG GERCHIN SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONG KONG GOOGXUN SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SCIENCE & TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HACOM SCIENCE & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HORIZON SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HUAYI SCIENCE & TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Isent Science and Technology Limited | Private company limited by shares | Live Commenced dormancy on 19-Oct-2018 |
| HONG KONG JIAJIE SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong JuYi Science and technology Limited | | Live |
| JUYI (HONG KONG) SCIENCE TECHNOLOGY LIMITED | | Live |
| Hong Kong Keson Science & Technology Limited | Private company limited by shares | Live |
| VG SCIENCE & TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| DB HONG KONG SCIENCE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |