| 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 |