| OPTIMUX VALVES CORPORATION LIMITED | Private company limited by shares | Live |
| OPTIN LIMITED | Private company limited by shares | Live |
| OPTINETWORKS LIMITED | Private company limited by shares | Dissolved |
| Optinvest Limited | | Live |
| Optioil Limited | | Live |
| OPTION LIMITED | Private company limited by shares | Dissolved |
| OPTION LIMITED | Private company limited by shares | Live |
| CP OPTION LIMITED | Private company limited by shares | Dissolved |
| TOP OPTION LIMITED | Private company limited by shares | Live |
| ACE OPTION LIMITED | Private company limited by shares | Live |
| Option CC Limited | Private company limited by shares | Live |
| Option One Company Limited | Private company limited by shares | Live |
| X Option Limited | | Live |
| GS option Limited | | Live |
| OPTION CAR ACCESSORIES LIMITED | Private company limited by shares | Dissolved |
| Bach Option Limited | Private company limited by shares | Live |
| BEST OPTION INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHINESE OPTION LIMITED | Private company limited by shares | Dissolved |
| DAILY OPTION LIMITED | Private company limited by shares | Live |
| OPTION ENTERPRISES LIMITED | | Live |
| FIRST OPTION LIMITED | Private company limited by shares | Live |
| SKY OPTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OPTION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Lead Option Limited | Private company limited by shares | Live |
| JILIN GUANQUN INTERNATIONAL OPTION MARKET TRADING SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OPTION SMART INVESTMENTS LIMITED | Private company limited by shares | Live |
| BPR STAFF OPTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| BC STAFF OPTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| OPTION UNIFORM COMPANY LIMITED | Private company limited by shares | Live |
| OptionAutomator Limited | Private company limited by shares | Live |
| OPTIONFORTUNE LIMITED | Private company limited by shares | Live |
| OPTIONFORTUNE TRADE LIMITED | Private company limited by shares | Live |
| Optionhobby Limited | Private company limited by shares | Dissolved |
| Biz Options Limited | Private company limited by shares | Dissolved |
| DIG OPTIONS LIMITED | Private company limited by shares | Live |
| VGI OPTIONS LIMITED | Private company limited by shares | Dissolved |
| Options Limited | Private company limited by shares | Live |
| SMI OPTIONS Limited | Private company limited by shares | Live |
| ALL OPTIONS ASIA LIMITED | Private company limited by shares | Dissolved |
| ALL OPTIONS ASIA HOLDING LIMITED | Private company limited by shares | Dissolved |
| Best Options Limited -The- | Private company limited by shares | Live |
| FIRST OPTIONS LIMITED | Private company limited by shares | Dissolved |
| Gold Options Limited | | Live |
| T. OPTIONS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Options Investments Limited | Private company limited by shares | Live |
| PACIFIC OPTIONS LIMITED | Private company limited by shares | Dissolved |
| RESOURCING OPTIONS LIMITED | Private company limited by shares | Live |
| Options Solution Limited | Private company limited by shares | Live |
| OptionScape HK Pty Limited | Private company limited by shares | Live |
| OPTIONSXPRESS INC. LIMITED | Private company limited by shares | Dissolved |
| OptiPaint Company Limited | Private company limited by shares | Live |
| MIDA OPTIPRODUCTS MANUFACTURING LIMITED | Private company limited by shares | Live |
| OPTIQE LIMITED | Private company limited by shares | Live |
| OPTIQUE LED LIMITED | Private company limited by shares | Dissolved |
| OPTIQUE OMNI (H.K.) LIMITED | Private company limited by shares | Dissolved |
| OPTIQUE INTERNATIONAL, LIMITED | Private company limited by shares | Dissolved |
| OPTIROAM LIMITED | Private company limited by shares | Live |
| OptiRom Co., Limited | Private company limited by shares | Live |
| OPTISOLUTION LIMITED | Private company limited by shares | Live |
| OPTISTORAGE (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Opti-sun Trade Limited | Private company limited by shares | Live |
| Optisuns Vision Limited | Private company limited by shares | Live |
| Optitech Investments Limited | Private company limited by shares | Live |
| OptiTech Precision Mould Co., Limited | Private company limited by shares | Live |
| Optitek Limited | Private company limited by shares | Live |
| OPTITEX ASIA LIMITED | Private company limited by shares | Live |
| OptiTrade Pro Limited | | Live |
| OPTITUNE ASIA LIMITED | Private company limited by shares | Live |
| OPTIUM JOY LIMITED | Private company limited by shares | Live |
| OPTIVA LIMITED | Private company limited by shares | Live |
| OPTIVA ASIA, LIMITED | Private company limited by shares | Dissolved |
| Optiver Alternative Investments HK Limited | Private company limited by shares | Live |
| OPTIVER HOLDING HONG KONG LIMITED | Private company limited by shares | Live |
| OPTIVER INVESTMENT HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OPTIVER TRADING HONG KONG LIMITED | Private company limited by shares | Live |
| Optivest Capital Limited | Private company limited by shares | Live |
| OPTIVIEW COMPANY LIMITED | Private company limited by shares | Live |
| OPTIWAY (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| Optiwise Company Limited | Private company limited by shares | Live |
| NEO OPTIX LIMITED | Private company limited by shares | Live |
| Optix Consultancy Limited | | Live |
| Optix Investment Limited | Private company limited by shares | Live |
| OPTIX RESEARCH INC LIMITED | Private company limited by shares | Live |
| OPTIX SOLUTIONS LIMITED | Private company limited by shares | Live |
| SUNBOND OPTIX LIMITED | Private company limited by shares | Live |
| Optizone Laser Limited | Private company limited by shares | Dissolved |
| Optizone Technology Limited | Private company limited by shares | Live |
| OptiZ-OPTO Display Co., Limited | Private company limited by shares | Live |
| Optlink Technology Co., Limited | Private company limited by shares | Live |
| OPTLITE INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| OPTLUX COMPANY LIMITED | Private company limited by shares | Dissolved |
| OPTMAR LIMITED | Private company limited by shares | Live |
| Optmaster Limited | | Live |
| OPTMEL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OptNet Limited | | Live |
| OPTO COMPANY LIMITED | Private company limited by shares | Dissolved |
| Opto Limited | Private company limited by shares | Live |
| ST Opto Company Limited | Private company limited by shares | Live |
| Opto X Company Limited | Private company limited by shares | Live |
| OPTO ASIA LIMITED | Private company limited by shares | Live |