| OSMEN PATIO FURNITURE LIMITED | Private company limited by shares | Live |
| Osment Technology Co., Limited | Private company limited by shares | Live |
| OSMIA (H.K.) LIMITED | Private company limited by shares | Live |
| Le Osmiaa (H.K.) Limited | Private company limited by shares | Live |
| OSMILES LIMITED | Private company limited by shares | Dissolved |
| Osmillennium Limited | Private company limited by shares | Live |
| Osmium Capital Limited | Private company limited by shares | Live |
| Osmium Consulting Group Limited | Private company limited by shares | Live |
| Osmium Institute Hong Kong Limited | | Live |
| OSMO COMPANY LIMITED | Private company limited by shares | Dissolved |
| Osmofactory Limited | | Live |
| OSMOND LIMITED | Private company limited by shares | Dissolved |
| R W OSMOND & ASSOCIATES LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Mar-1999 |
| Osmond Drainage Limited | Private company limited by shares | Live |
| Osmond Property Company Limited | | Live |
| OSMOND TECHNOLOGY LIMITED | | Live |
| OSMOS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SO OSMOSE COLLECTION LIMITED | Private company limited by shares | Live |
| Osmoses Hong Kong Limited | Private company limited by shares | Live |
| Osmosia Limited | | Live |
| OSMOSIS LIMITED | Private company limited by shares | Dissolved |
| Osmosis Limited | Private company limited by shares | Live |
| Digital Osmosis Limited | Private company limited by shares | Live |
| Osmoslab Technologies Limited | Private company limited by shares | Live |
| OSMUIR LIMITED | Private company limited by shares | Dissolved |
| OSMUND LIMITED | Private company limited by shares | Dissolved |
| OSMUND CONSULTANT (ENG.) LIMITED | Private company limited by shares | Dissolved |
| OSMUND WOODWORKING MACHINERY LIMITED | Private company limited by shares | Dissolved |
| HK OSNACH INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| OSNEY LIMITED | Private company limited by shares | Dissolved |
| KOREA OSNI DRESS (HK) INT'L LIMITED | Private company limited by shares | Dissolved |
| OSNI TRADING COMPANY LIMITED | Private company limited by shares | Live |
| OSNOR LIMITED | Private company limited by shares | Dissolved |
| Osnpay Limited | | Live |
| Osobang Company Limited | Private company limited by shares | Live |
| OSOFT CO. LIMITED | Private company limited by shares | Live |
| OSOG Investments Limited | Private company limited by shares | Live |
| OSOGhome Limited | Private company limited by shares | Live |
| Osome Limited | Private company limited by shares | Live |
| Osome CPA Limited | | Live |
| OSON COMPANY LIMITED | Private company limited by shares | Dissolved |
| Oson Pharmacy Company Limited | Private company limited by shares | Live |
| Oson Pharmacy (Y.T.) Company Limited | | Live |
| OSONG LIFE HONG KONG LIMITED | Private company limited by shares | Live |
| OSONG TRADING LIMITED | Private company limited by shares | Live |
| OSOO LANA COMPANY LIMITED | Private company limited by shares | Live |
| OSOOL TRADING CO., LIMITED | Private company limited by shares | Live |
| OSORI LIMITED | Private company limited by shares | Live |
| OSORNO LIMITED | Private company limited by shares | Dissolved |
| Osowu Venture International (HK) Limited | | Live |
| Ospace Limited | Private company limited by shares | Live |
| OSPACE ASIA LIMITED | Private company limited by shares | Live |
| Ospace ideas Co., Limited | | Live |
| OSPARK LIMITED | Private company limited by shares | Dissolved |
| O-Spheres Limited | | Live |
| Ospicon Company Limited | Private company limited by shares | Live |
| OSPINTER LIMITED | Private company limited by shares | Live |
| OSPON ENTERPRISE LIMITED | Private company limited by shares | Live |
| OSPOP LIMITED | Private company limited by shares | Dissolved |
| O!Sport Company Limited | Private company limited by shares | Live |
| OSPREY COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSPREY LIMITED | Private company limited by shares | Live |
| OSPREY DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| FINDHORN OSPREY LIMITED | Private company limited by shares | Live |
| OSPREY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OSQHIN(CHINA) COSMETICS PTY LIMITED | Private company limited by shares | Live |
| O-Square Company Limited | Private company limited by shares | Live |
| Osquares Limited | Private company limited by shares | Live |
| DP (OSR) LIMITED | Private company limited by shares | Live |
| OSRALYN COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSRAM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GERMANY OSRAM STOCK COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK OSRAM LIGHTING APPLIANCES LIMITED | Private company limited by shares | Dissolved |
| OSRAM Asia Pacific Limited | Private company limited by shares | Live |
| HONGKONG OSRAN GLASSES CO., LIMITED | Private company limited by shares | Live |
| OSRAN (HONGKONG) TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| OSRAN OPTICAL CO., LIMITED | Private company limited by shares | Live |
| Osrfid Technology Limited | | Live |
| OSRIC LIMITED | Private company limited by shares | Dissolved |
| OSRK Limited | | Live |
| OSRO CHINA LIMITED | Private company limited by shares | Live |
| O.S.S. Oriental Service and Sourcing Limited | Private company limited by shares | Dissolved |
| OSSA LIMITED | Private company limited by shares | Dissolved |
| Germany OSSDEN Intelligent Technology Co., Limited | Private company limited by shares | Live |
| OSSEN LIMITED | Private company limited by shares | Live |
| OSSEN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| OSSEN INTERNATIONAL CO., LIMITED | | Live |
| SHENZHEN OSSEN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| OSSEN GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| OSSEN GROUP CO., LIMITED | Private company limited by shares | Live |
| OSSEN TELECOMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| OSSEO LIMITED | Private company limited by shares | Dissolved |
| OSSEODENT LIMITED | Private company limited by shares | Dissolved |
| OSSF (HONG KONG) LIMITED | Private company limited by shares | Live |
| OSSG LIMITED | Private company limited by shares | Live |
| OSSHA LIMITED | Private company limited by shares | Dissolved |
| Ossian Limited | Private company limited by shares | Live |
| Ossic HK Limited | Private company limited by shares | Live |
| OSSINA LIMITED | Private company limited by shares | Live |
| OSSINGTON LIMITED | Private company limited by shares | Dissolved |