| ORION ENGINEERING LIMITED | Private company limited by shares | Live |
| ORION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ORION ENTERPRISES LIMITED | Private company limited by shares | Live |
| Orion Express Company Limited | | Live |
| NINGBO ORION FASTENERS LIMITED | Private company limited by shares | Live |
| Orion Finance Limited | Private company limited by shares | Live |
| ORION FOODS LIMITED | Private company limited by shares | Live |
| ORION FOOTWEAR FAREAST LIMITED | Private company limited by shares | Dissolved |
| Orion Gears Limited | Private company limited by shares | Live |
| Global Orion Limited | Private company limited by shares | Dissolved |
| ORION GLOBAL LIMITED | Private company limited by shares | Live |
| ORION GLOBAL HUMAN CAPITAL LIMITED | Private company limited by shares | Live |
| ORION GLOBAL TRADING LIMITED | Private company limited by shares | Dissolved |
| ORION (GLOBAL) TRADING LIMITED | | Live |
| ORION GLOVES LIMITED | Private company limited by shares | Dissolved |
| HK ORION GROUP LIMITED | Private company limited by shares | Dissolved |
| ORION GROUP LIMITED | Private company limited by shares | Live |
| ORION CONSULTING GROUP LIMITED | Private company limited by shares | Dissolved |
| Orion Finance Group Limited | Private company limited by shares | Live |
| ORION (HONG KONG) GROUP LIMITED | Private company limited by shares | Live |
| ORION GROUP S.A. LIMITED | Private company limited by shares | Live |
| ORION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| ORION SHIPPING (HONG KONG) LIMITED | | Live |
| ORION IMPRESA LIMITED | Private company limited by shares | Live |
| ORION INCORPORATION LIMITED | Private company limited by shares | Dissolved |
| ORION INCORPORATION LIMITED | Private company limited by shares | Live |
| ORION INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ORION INDUSTRY LIMITED | Private company limited by shares | Live |
| Orion Intelligent Technologies Limited | Private company limited by shares | Live |
| ORION INTERNATIONALE LIMITED | Private company limited by shares | Dissolved |
| ORION INV. HOLDING LIMITED | Private company limited by shares | Live |
| ORION INVESTA LIMITED | Private company limited by shares | Dissolved |
| ORION INVESTIGATIONS LIMITED | Private company limited by shares | Live |
| ORION INVESTMENT CO. LIMITED | Private company limited by shares | Live |
| Orion HK Investment Limited | Private company limited by shares | Live |
| Orion Investment Holding Limited | Private company limited by shares | Live |
| Orion Kinetics Limited | | Live |
| ORION ENERGY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Orion Properties (Hong Kong) Company Limited | Private company limited by shares | Live |
| DONGGUAN ORION TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| ORION TRANSPORT LAMPS LIMITED | Private company limited by shares | Live |
| Orion LifeTech (Asia) Limited | Private company limited by shares | Live |
| ORION LINK LIMITED | Private company limited by shares | Live |
| ORION MANAGEMENT LIMITED | Private company limited by shares | Live |
| ORION ASSET MANAGEMENT LIMITED | | Live |
| ORION ENDURANCE MANAGEMENT LIMITED | Private company limited by shares | Live |
| ORION MANAGEMENT GROUP LIMITED | Private company limited by shares | Live |
| ORION STRATEGIC MANAGEMENT CO. LIMITED | Private company limited by shares | Live |
| ORION MARBLE COMPANY LIMITED | | Live |
| ORION MARITIME CARRIERS LIMITED | Private company limited by shares | Dissolved |
| ORION METRO LIMITED | Private company limited by shares | Live |
| Monoceros Orion Limited | | Live |
| Orion Motors Limited | | Live |
| ORION NETWORK EXCHANGE LIMITED | | Live |
| ORION ONLINE LIMITED | Private company limited by shares | Live |
| Orion Outdoor Limited | Private company limited by shares | Live |
| ORION PACIFIC LIMITED | Private company limited by shares | Live |
| ORION (ASIA PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| ORION (ASIA PACIFIC) LIMITED | Private company limited by shares | Live |
| ORION PLUS LIMITED | Private company limited by shares | Live |
| ORION OFFSET PRINTING LIMITED | Private company limited by shares | Dissolved |
| ORION PUBLICATIONS LIMITED | Private company limited by shares | Dissolved |
| ORION RESOURCES LIMITED | Private company limited by shares | Live |
| ORION RISING HK LIMITED | Private company limited by shares | Live |
| ORION ROYAL PACIFIC LIMITED | Private company limited by shares | Dissolved |
| ORION ENERGY SAVING HK LIMITED | Private company limited by shares | Dissolved |
| Orion Scuba Limited | Private company limited by shares | Live |
| ORION SEMI LIMITED | Private company limited by shares | Live |
| ORION SOLUTIONS LIMITED | Private company limited by shares | Live |
| ORION SOURCING COMPANY LIMITED | Private company limited by shares | Live |
| ORION SPACE LIMITED | Private company limited by shares | Live |
| Orion Spirit Limited | | Live |
| ORION STAR LIMITED | Private company limited by shares | Live |
| ORION STAR LINE LIMITED | Private company limited by shares | Dissolved |
| ORION LUCKY STAR LIMITED | Private company limited by shares | Live |
| Orion Star Shipping Limited | | Live |
| ORION STARS LIMITED | Private company limited by shares | Live |
| ORION STPK LIMITED | | Live |
| ORION STUDIO LIMITED | Private company limited by shares | Live |
| ORION TECH HK LIMITED | Private company limited by shares | Live |
| ORION TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| Orion Technologies Limited | Private company limited by shares | Live |
| ORION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ORION INNOVATING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ORION HONG KONG TOURS LIMITED | Private company limited by shares | Dissolved |
| ORION TRADE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ORION TRADING LIMITED | Private company limited by shares | Dissolved |
| ORION TRADING LIMITED | Private company limited by shares | Dissolved |
| ORION TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Orion Trading HK Limited | Private company limited by shares | Live |
| Orion Asia Trading Limited | Private company limited by shares | Live |
| Orion Minerals Trading Limited | Private company limited by shares | Live |
| ORION RESOURCES (TRADING) LIMITED | Private company limited by shares | Live |
| Orion3 Founders Limited | Private company limited by shares | Live |
| ORIONATION DEVELOPMENT LIMITED | | Live |
| ORIONCOM LIMITED | Private company limited by shares | Live |
| OrionEco Limited | | Live |
| ORIONIDS TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Orionis Technology Limited | | Live |
| ORION'S CREATIONS (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |