| Rongqing Optimal Selection Limited | | Live |
| OPTIMAL SKIN LIMITED | Private company limited by shares | Live |
| OPTIMAL SOAR LIMITED | Private company limited by shares | Live |
| OPTIMAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| OPTIMAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| OPTIMAL ASIA SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| Optimal Lead Solutions Limited | Private company limited by shares | Live |
| Optimal Sourcing Co., Limited | Private company limited by shares | Live |
| XIAMEN OPTIMAL STONE CO., LIMITED | Private company limited by shares | Live |
| OPTIMAL STORAGE LIMITED | Private company limited by shares | Dissolved |
| Optimal Strategy Limited | | Live |
| OPTIMAL SUCCESS LIMITED | Private company limited by shares | Live |
| OPTIMAL SUNBEAM (HK) COMPANY LIMITED | | Live |
| Optimal Talent Company Limited | Private company limited by shares | Live |
| OPTIMAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Yue Optimal Technology Limited | Private company limited by shares | Live |
| Optimal Technology Limited | | Live |
| OPTIMAL DE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Optimal Metal Technology Co., Limited | Private company limited by shares | Live |
| Optimal Trade Limited | Private company limited by shares | Live |
| Optimal Trading Limited | Private company limited by shares | Live |
| OPTIMAL - J TRADING LIMITED | Private company limited by shares | Live |
| DO OPTIMAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Century Optimal Trading Co., Limited | | Live |
| OPTIMAL FOCUS TRADING LIMITED | Private company limited by shares | Live |
| OPTIMAL SOURCES TRADING LIMITED | Private company limited by shares | Live |
| OPTIMAL LINGUAL TRANSLATIONS LIMITED | Private company limited by shares | Live |
| True Optimal Limited | | Live |
| FRANCE UNIVERSAL OPTIMAL PRODUCT GROUP LIMITED | Private company limited by shares | Live |
| OPTIMAL VANTAGE LIMITED | Private company limited by shares | Live |
| Zhongyin Optimal Cosmetic Co., Limited | Private company limited by shares | Live |
| OPTIMALLY HOLDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| OptimalStocks.com. Limited | Private company limited by shares | Dissolved |
| Optimapp Limited | Private company limited by shares | Live |
| Optimas Capital Limited | Private company limited by shares | Live |
| OPTIM-ASIA LIMITED | Private company limited by shares | Live |
| OPTIMATE LIMITED | | Live |
| OPTIMAX LIMITED | Private company limited by shares | Live |
| OPTIMAX HEALTHCARE LIMITED | Private company limited by shares | Live |
| OPTIME LIMITED | Private company limited by shares | Dissolved |
| OPTIME CAPITAL INVESTMENT LIMITED | Private company limited by shares | Live |
| OPTIMERA LIMITED | | Live |
| Optimex Global Network Limited | Private company limited by shares | Live |
| OPTIMIN CAPITAL LIMITED | Private company limited by shares | Live |
| Optimind Limited | Private company limited by shares | Live |
| OPTIMINDS LIMITED | Private company limited by shares | Live |
| Age of Optimise Limited | Private company limited by shares | Live |
| OPTIMISE LUCK LIMITED | Private company limited by shares | Dissolved |
| IC Optimism Company Limited | | Live |
| OPTIMISM LIMITED | | Live |
| OPTIMISSION BUSINESS CO., LIMITED | | Live |
| OPTIMISSION GLOBAL CO., LIMITED | Private company limited by shares | Dissolved |
| Ganancias Optimista HK Limited | Private company limited by shares | Live |
| OPTIMISTIC BROTHERS LIMITED | Private company limited by shares | Live |
| OPTIMISTIC EXTENSION LIMITED | Private company limited by shares | Dissolved |
| Zero Display Optimistictronics Limited | Private company limited by shares | Live |
| OPTIMIT LIFE LIMITED | Private company limited by shares | Live |
| Optimization Limited | Private company limited by shares | Live |
| INTEGRATED OPTIMIZATION SOLUTION LIMITED | Private company limited by shares | Dissolved |
| Office Software Optimization Limited | Private company limited by shares | Live |
| LEAD SAIL SUPPLY CHAIN OPTIMIZATION LIMITED | | Live |
| Smart Optimization Limited | Private company limited by shares | Live |
| Business Optimization Solutions Studio Limited | Private company limited by shares | Live |
| Optimize Limited | Private company limited by shares | Dissolved |
| Bid and Optimize Limited | Private company limited by shares | Live |
| Optimize Business Limited | | Live |
| OPTIMIZE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OPTIMIZE INVESTMENT LIMITED | Private company limited by shares | Live |
| OPTIMIZER LIMITED | Private company limited by shares | Live |
| Trip Optimizer Company Limited | Private company limited by shares | Live |
| Optimizing Solutions Limited | | Live |
| OPTIMOLOGY RESEARCH AND SOLUTIONS LIMITED | Private company limited by shares | Live |
| OPTIMUM LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM SKY LIMITED | Private company limited by shares | Live |
| OPTIMUM LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM LIMITED | Private company limited by shares | Dissolved |
| JP OPTIMUM LIMITED | Private company limited by shares | Live |
| Optimum Limited | Private company limited by shares | Live |
| OPTIMUM SCF LIMITED | Private company limited by shares | Live |
| OPTIMUM COMPANY LIMITED | | Live |
| Optimum Accessories Limited | Private company limited by shares | Dissolved |
| OPTIMUM ADVANTAGE LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM ALIVE LIMITED | Private company limited by shares | Live |
| CHINA OPTIMUM NANO INNOVATION ALLIANCE LIMITED | Private company limited by shares | Live |
| OPTIMUM ASSERTS LIMITED | Private company limited by shares | Live |
| OPTIMUM CREATIVE LIMITED | Private company limited by shares | Live |
| OPTIMUM DRAGON COMPANY LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM ENTERPRISES LIMITED | Private company limited by shares | Live |
| FAITHFUL OPTIMUM LIMITED | Private company limited by shares | Live |
| HW Optimum Healthcare Limited | Private company limited by shares | Dissolved |
| OPTIMUM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM INVESTMENT LIMITED | Private company limited by shares | Live |
| ORIENTAL OBSIDIAN OPTIMUM ORGANIZATION GROUP LIMITED | Private company limited by shares | Dissolved |
| OPTIMUM ORIENT LIMITED | Private company limited by shares | Live |
| OPTIMUM POINT HK LIMITED | Private company limited by shares | Live |
| OPTIMUM POWER LIMITED | Private company limited by shares | Live |
| OPTIMUM RESEARCH LIMITED | Private company limited by shares | Dissolved |
| Optimum Software Limited | Private company limited by shares | Live |
| OPTIMUM SOLAR LIMITED | Private company limited by shares | Live |
| OPTIMUM SOLUTIONS LIMITED | Private company limited by shares | Dissolved |