| WORLD CIVILIZATION OBSERVATION RESEARCH INSTITUTE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| CHINA LAW OBSERVATIONAL STUDY CONSULT GROUP LIMITED | Private company limited by shares | Dissolved |
| OBSERVATORY ESTATES LIMITED | Private company limited by shares | Dissolved |
| OBSERVATORY WATCH & JEWELLERY COMPANY LIMITED | Private company limited by shares | Live |
| BRIGHTEN OBSERVE LIMITED | Private company limited by shares | Live |
| OBSERVENTURE DESIGN & MARKETING LIMITED | Private company limited by shares | Live |
| Observer Limited | | Live |
| OBSERVERS CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG OBSERVERS LIMITED | Company limited by guarantee | Dissolved |
| China Observers Press Co., Limited | Private company limited by shares | Live |
| Health and Safety Observers Association Limited | Company limited by guarantee | Live |
| OBSERVERS TRAVEL ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Observia Asia Limited | Private company limited by shares | Live |
| Obsesseder Limited | | Live |
| Obsession Spa Limited | Private company limited by shares | Live |
| Magnificent Obsession Limited | Private company limited by shares | Live |
| SOCKS OBSESSION LIMITED | Private company limited by shares | Live |
| OBSESSIONS IN TIME LIMITED | Private company limited by shares | Dissolved |
| OBSESSPLANET HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| OBSETECH Limited | Private company limited by shares | Live |
| Obsevo Innovation Company Limited | Private company limited by shares | Live |