| SERENE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SERENE SKY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SERENE LIMITED | Private company limited by shares | Dissolved |
| SERENE SKY LIMITED | Private company limited by shares | Live |
| SERENE COMPANY LIMITED | Private company limited by shares | Live |
| Serene Aesthetics Centre Company Limited | | Live |
| SERENE ALUMINIUM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Serene Anaesthesia Limited | Private company limited by shares | Live |
| SERENE BEAUTY LIMITED | Private company limited by shares | Live |
| SERENE TO BEYOND CO., LIMITED | Private company limited by shares | Dissolved |
| SERENE CALM LIMITED | Private company limited by shares | Live |
| Serene Capital Limited | Private company limited by shares | Live |
| SERENE ALUMINIUM (CHINA) LIMITED | Private company limited by shares | Live |
| HK SERENE BATH CO., LIMITED | Private company limited by shares | Live |
| Serene & Grace Co., Limited | Private company limited by shares | Live |
| SERENE PROMOTION TRADE CO., LIMITED | Private company limited by shares | Live |
| SERENE WATCHES CO., LIMITED | Private company limited by shares | Live |
| SERENE DESIGN LIMITED | Private company limited by shares | Live |
| SERENE DIAGNOSTIC LIMITED | Private company limited by shares | Live |
| SERENE DESIGN & FASHION COMPANY LIMITED | Private company limited by shares | Live |
| SERENE DESIGN & FASHION COMPANY LIMITED | Private company limited by shares | Live |
| SERENE FOCUS LIMITED | Private company limited by shares | Live |
| SERENE FORTUNE LIMITED | Private company limited by shares | Live |
| SERENE FUTURE INVESTMENT LIMITED | Private company limited by shares | Live |
| SERENE PACIFIC GLOBAL LIMITED | | Live |
| SERENE GOODWILL LIMITED | Private company limited by shares | Live |
| Serene Group Limited | Private company limited by shares | Dissolved |
| SERENE Group Limited | | Live |
| SERENE HARMONY LIMITED | Private company limited by shares | Live |
| SERENE FOR HEALTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| Serene Zone Holding Limited | | Live |
| SERENE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KOWLOON SERENE HONG KONG LIMITED | Private company limited by shares | Live |
| SERENE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SERENE ELECTRONIC INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SERENE INVESTMENT LIMITED | Private company limited by shares | Live |
| SERENE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Serene Joyful Beauty Limited | | Live |
| SERENE ELECTRICAL & PLASTIC MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| Serene Grace Metal Scaffolding Engineering Limited | | Live |
| Serene Morning Company Limited | | Live |
| SERENE ORIENT LIMITED | Private company limited by shares | Live |
| SERENE PEACEFUL LIMITED | Private company limited by shares | Live |
| SERENE PROPERTY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SERENE RESOURCES LIMITED | | Live |
| Serene Solutions Limited | | Live |
| SERENE TRADE LIMITED | Private company limited by shares | Live |
| SERENE BOUTIQUE TRADING COMPANY LIMITED | | Live |
| Yoga Serene Limited | Private company limited by shares | Live |
| SereneClear International Co., Limited | | Live |
| SERENEDIPITY LIMITED | Private company limited by shares | Live |