| 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 |
| SERENG LIMITED | Private company limited by shares | Live |
| LA SERENIDAD COMPANY LIMITED | | Live |
| Serenio AI Limited | | Live |
| Mare Serenitatis International Limited | Private company limited by shares | Live |
| SERENITE DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| Serenitee Limited | | Live |
| SERENITY COMPANY LIMITED | Private company limited by shares | Live |
| Serenity Win Limited | Private company limited by shares | Dissolved |
| AIR SERENITY LIMITED | Private company limited by shares | Live |
| 14 Serenity Limited | | Live |
| Serenity Sea Limited | | Live |
| SERENITY 41 LIMITED | | Live |
| SERENITY 42 LIMITED | | Live |
| SERENITY 43 LIMITED | | Live |
| SERENITY 44 LIMITED | | Live |
| Serenity Capital Asia Limited | Private company limited by shares | Live |
| Serenity Assets Limited | Private company limited by shares | Live |
| SERENITY DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| SERENITY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SERENITY FAIR LIMITED | Private company limited by shares | Live |
| Serenity CP1 Holding Limited | Private company limited by shares | Live |
| SERENITY HOLDING LIMITED | Private company limited by shares | Dissolved |
| SERENITY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SERENITY INVESTMENT LIMITED | Private company limited by shares | Live |
| SERENITY INVESTMENTS LIMITED | Private company limited by shares | Live |
| SERENITY NETWORKS LIMITED | Private company limited by shares | Live |
| Serenity Paradise Limited | | Live |
| SERENITY RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| Serenity Space Limited | | Live |
| SERENITY STRATEGY LIMITED | Private company limited by shares | Dissolved |
| SERENITY SYSTEM LIMITED | Private company limited by shares | Live |
| SERENITY1120 LIMITED | | Live |
| Serenity's Limited | | Live |
| Serenitystrip Limited | | Live |
| Serenitytech Limited | Private company limited by shares | Live |
| SERENLARITY LIMITED | Private company limited by shares | Live |
| ST. SERENO CO., LIMITED | Private company limited by shares | Live |
| SERENO GROUP LIMITED | Private company limited by shares | Live |
| SERENO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SERENO INVESTMENTS LIMITED | Private company limited by shares | Live |
| Sereno Production Limited | Private company limited by shares | Live |
| Sereno Cloud Solution HK Limited | Private company limited by shares | Live |
| SERENUS LIMITED | Private company limited by shares | Live |
| Serenus International Limited | | Live |
| Serenus LifeTech Limited | | Live |
| SERENUS MEDICAL LIMITED | | Live |