| REGAIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| REGAIN LIMITED | Private company limited by shares | Dissolved |
| REGAIN LIMITED | | Live |
| BEST REGAIN LIMITED | Private company limited by shares | Live |
| Regain Biotech Limited | Private company limited by shares | Live |
| REGAIN CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| REGAIN TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| REGAIN FASHION LIMITED | Private company limited by shares | Live |
| Regain Global Limited | Private company limited by shares | Live |
| ROYAL REGAIN INTERNATIONAL HEALTH INDUSTRY GROUP COMPANY LIMITED | Private company limited by shares | Live |
| Regain Insurance Group Limited | Private company limited by shares | Live |
| REGAIN SOLDIER WELFARE CAUSE INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| REGAIN (HK) LIMITED | Private company limited by shares | Live |
| REGAIN IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Live |
| REGAIN INTERNATIONAL COMPANY (HONG KONG) LIMITED | Private company limited by shares | Live |
| REGAIN INVESTMENT LIMITED | Private company limited by shares | Live |
| REGAIN ASSET MANAGEMENT LIMITED | Private company limited by shares | Live |
| Regain Risk Management Limited | Private company limited by shares | Live |
| Regain Insurance Marketing Limited | Private company limited by shares | Live |
| Regain Memories Limited | | Live |
| REGAIN INSURANCE FINANCIAL MANAGEMENT SERVICES LIMITED | Private company limited by shares | Live |
| Regain Motor Services Limited | Private company limited by shares | Live |