| S.O.S. Beauty Limited | Private company limited by shares | Live |
| SO'S WEALTH CREATION LIMITED | Private company limited by shares | Live |
| SO'S (CABLE) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SO'S HOP HING INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SO'S METAL COMPANY LIMITED | Private company limited by shares | Live |
| S.O.S. Motor Limited | Private company limited by shares | Live |
| S.O.S PHYSIOTHERAPY CENTRE LIMITED | Private company limited by shares | Live |
| WING FAT (SO'S) PLASTICS FACTORY LIMITED | Private company limited by shares | Live |
| S.O.S. HAPPY LIFE PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| SO'S SHOES MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| SO'S TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HOI KEE (SO'S) TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOSA ITC Limited | Private company limited by shares | Live |
| SoSabon Limited | | Live |
| SOSAITER SANITARY CO., LIMITED | Private company limited by shares | Live |
| SOSAL LIMITED | Private company limited by shares | Dissolved |
| SOSand LIMITED -THE- | Private company limited by shares | Live |
| SOSCAPE LANDSCAPE ARCHITECTURE LIMITED | Private company limited by shares | Live |
| SOScase Limited | Private company limited by shares | Live |
| SOSCO LIMITED | Private company limited by shares | Live |
| SOSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOSE Limited | Private company limited by shares | Live |
| SOSEGA CORP LIMITED | Private company limited by shares | Live |
| SOSEK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SOSEK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOSEKI COSMETICS LIMITED | Private company limited by shares | Live |
| SOSEN LIMITED | Private company limited by shares | Live |
| SOSEN Creative Limited | Private company limited by shares | Live |
| SOSEN ELECTRONICS (HONGKONG) LIMITED | Private company limited by shares | Live |
| SOSEN HOLDING LIMITED | Private company limited by shares | Live |
| SOSEN (HONG KONG) LIMITED | | Live |
| SOSEN INNOVATION (HONG KONG) LIMITED | | Live |
| SOSHE (HK INTL) TRADING CO., LIMITED | Private company limited by shares | Live |
| SOSHIDA COMPANY LIMITED | Private company limited by shares | Dissolved |
| SoshiLabs Limited | Private company limited by shares | Live |
| SOSHIN LIMITED | Private company limited by shares | Dissolved |
| SOSHIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOSHIN (HK) SUPPLY CHAIN LIMITED | Private company limited by shares | Live |
| SOSHIN ELECTRIC (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOSHIN ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |
| SOSHIN ONKYO MANUFACTURING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SOSHIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JAPAN SOSHIN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SoShine lighting Co., Limited | Private company limited by shares | Live |
| SOSHINE INTERNATIONAL (H.K.) CO., LIMITED | Private company limited by shares | Live |
| SOSHIO (H.K.) INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| Soshio Plus Limited | Private company limited by shares | Live |
| Sosho Limited | Private company limited by shares | Live |
| Soshow Limited | | Live |
| SOSIC TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| SOSIC TRADING LIMITED | Private company limited by shares | Live |
| FRANCE SOSIENY COSMETICS CO., LIMITED | Private company limited by shares | Live |
| SOSIMPLE BRANDS LIMITED | Private company limited by shares | Live |
| SOSINO LIMITED | Private company limited by shares | Live |
| Sosino Group Limited | Private company limited by shares | Live |
| SOSINO INVESTMENT LIMITED | Private company limited by shares | Live |
| Sositar Mold Co., Limited | Private company limited by shares | Live |
| SOSITAR MOULD CO., LIMITED | Private company limited by shares | Live |
| Sosky Limited | Private company limited by shares | Live |
| Sosky Solutions Limited | Private company limited by shares | Live |
| HK SOSN GROUP CO., LIMITED | Private company limited by shares | Live |
| Sosna Trading Limited | | Live |
| SOSO LIMITED | | Live |
| SOSO ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| SOSO ENTERPRISE LIMITED | Company limited by guarantee | Live |
| SOSO Health Management (HK) Co., Limited | Private company limited by shares | Live |
| SOSO (Hong Kong) Co., Limited | Private company limited by shares | Live |
| HONGKONG SOSO CO., LIMITED | Private company limited by shares | Live |
| SOSO Interactive Limited | Private company limited by shares | Live |
| SOSO INTERNATION GROUP COMPANY LIMITED | Private company limited by shares | Live |
| SOSO INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Hong Kong SOSO International group Limited | Private company limited by shares | Live |
| SOSO INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Soso Beauty Makeup Co., Limited | Private company limited by shares | Live |
| HK SOSO STYLE INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| SOSO Tech Limited | | Live |
| SOSO88 COMPANY LIMITED | | Live |
| SoSoAds Limited | Private company limited by shares | Live |
| SOSOBATT CO., LIMITED | Private company limited by shares | Live |
| SOSOC LIMITED | Private company limited by shares | Live |
| SOSOCHA.COM CHINA. LIMITED | Private company limited by shares | Live |
| SOSOClassroom Limited | Private company limited by shares | Live |
| SOSOHOME LIMITED | Private company limited by shares | Live |
| SOSOMe Limited | | Live |
| SOSOMEDIA Technology Limited | Private company limited by shares | Live |
| SOSONIEL LIMITED | Private company limited by shares | Live |
| SOSOSO Limited | | Live |
| SOSOUL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SOSPES ENERGY LIMITED | Private company limited by shares | Live |
| SOST FINE PARTS LIMITED | Private company limited by shares | Dissolved |
| SOSTAR INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SOSTAR INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| SOSTARRY TECH LIMITED | Private company limited by shares | Live |
| Sostrana Limited | Private company limited by shares | Live |
| SOSU WORKSHOP Limited | | Live |
| Sosuite Creative Company Limited | Private company limited by shares | Live |
| SOSUM NATURAL SOAP LIMITED | Private company limited by shares | Live |
| SOSUN (CHINA) INCORPORATED COMPANY LIMITED | Private company limited by shares | Live |
| SOSUN ELECTRONICS (H.K) LIMITED | Private company limited by shares | Dissolved |
| SOSUN INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |