| O.S.I. TRADE MARK SERVICES LIMITED | Private company limited by shares | Dissolved |
| OSIBAO COSMETICS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Osica Group Limited | Private company limited by shares | Live |
| HK OSICA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OSIDI FURNITURE LIMITED | Private company limited by shares | Live |
| osiem Limited | Private company limited by shares | Live |
| Osier Limited | Private company limited by shares | Live |
| OSIER GROUP LIMITED | Private company limited by shares | Live |
| OSIFA TRADING CO., LIMITED | Private company limited by shares | Live |
| OSIKA CO., LIMITED | Private company limited by shares | Live |
| OSIM TOV LIMITED | Private company limited by shares | Live Commenced dormancy on 13-Aug-2014 |
| Osim Asset Limited | Private company limited by shares | Live |
| OSIM (HK) CO. LIMITED | Private company limited by shares | Live |
| HONGKONG OSIM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FRANCE OSIM INTERNATIONAL GROUP FASHION LIMITED | Private company limited by shares | Live |
| HONG KONG OSIM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OSIM TRADING COMPANY LIMITED | Private company limited by shares | Live |
| OSIMA TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSIMI GROUP LIMITED | | Live |
| OSIN COMPANY LIMITED | | Live |
| OSIN INVESTMENTS CO., LIMITED | Private company limited by shares | Dissolved |
| OSION INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| Osion International Limited | | Live |
| OSION TRADING COMPANY LIMITED | | Live |
| O-SIP LIMITED | Private company limited by shares | Live |
| OSIPAI TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OSIPTELL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OSIR COMPANY LIMITED | Private company limited by shares | Live |
| OSIRI Limited | Private company limited by shares | Dissolved |
| OSIRIOS LIMITED | | Live |
| Osiris Limited | Private company limited by shares | Live |
| OSIRIS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OSIRIS RESEARCH LIMITED | Private company limited by shares | Dissolved |
| OSIRIS SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSIRIS TOBACCO COMPANY LIMITED | Private company limited by shares | Live |
| OSISS LIMITED | Private company limited by shares | Live |
| OSISS HOLDINGS COMPANY LIMITED | Private company limited by shares | Live |
| OSITO LIMITED | Private company limited by shares | Live |
| OSITV LIMITED | Private company limited by shares | Live |
| Osiya Consultancy Limited | Private company limited by shares | Live |