| S.O.I. LIMITED | Private company limited by shares | Dissolved |
| S.O.I. (HONG KONG) LIMITED | Private company limited by shares | Live |
| SOIAN INVESTMENT LIMITED | Private company limited by shares | Live |
| SOICING TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SOIDEA (HK) LIMITED | Private company limited by shares | Live |
| LA SOIE COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAGIE SOIE (HONGKONG) LIMITED | Private company limited by shares | Live |
| SOIE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SOIE International Private Co., Limited | Private company limited by shares | Live |
| LA SOIE EN PLUS PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| LA ROUTE DE LA SOIE LIMITED | Private company limited by shares | Dissolved |
| SOIHL HONG KONG HOLDING LIMITED | Private company limited by shares | Live |
| SUN SOIL LIMITED | Private company limited by shares | Live |
| NEW SOIL LIMITED | Private company limited by shares | Dissolved |
| SOIL LIMITED | Private company limited by shares | Live |
| RED SOIL LIMITED | Private company limited by shares | Dissolved |
| ONE SOIL LIMITED | Company limited by guarantee | Live |
| W & SOIL COMPANY LIMITED | Private company limited by shares | Live |
| SOIL ADVERTISING LIMITED | Private company limited by shares | Live |
| ASIA SOIL LIMITED | Private company limited by shares | Dissolved |
| SOIL CENTRE ASIA LIMITED | Private company limited by shares | Dissolved |
| BEST SOIL LIMITED | Private company limited by shares | Dissolved |
| Black Soil Group Limited | Private company limited by shares | Live |
| China Soil Academy Limited | Private company limited by shares | Live |
| Center Soil International Company Co., Limited | Private company limited by shares | Live |
| COMBINE SOIL LIMITED | Private company limited by shares | Dissolved |
| The Soil Consulting Limited | | Live |
| SOIL SPECIALIST CONTRACTORS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| FAIR SOIL LIMITED | Private company limited by shares | Dissolved |
| Kam Yuk Feng Soil Purification Limited | Private company limited by shares | Dissolved |
| FERTILE SOIL COMPANY LIMITED | Private company limited by shares | Live |
| FERTILE SOIL GROUP LIMITED | Private company limited by shares | Live |
| FULL SOIL LIMITED | Private company limited by shares | Dissolved |
| Global Soil Science Association Co., Limited | Private company limited by shares | Live |
| Good Soil Limited | Private company limited by shares | Live |
| GRAND SOIL LIMITED | Private company limited by shares | Dissolved |
| SOIL TO SOUL GROUP LIMITED | Private company limited by shares | Live |
| SOIL GROUTING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HARD SOIL LIMITED | Private company limited by shares | Dissolved |
| SOIL HEART LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Soil Art Creation Limited | | Live |
| HONG KONG SOIL COMPANY LIMITED | Private company limited by shares | Live |
| SOIL INSTRUMENTS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Black Soil Hotel Investment Co., Limited | Private company limited by shares | Dissolved |
| Wing Fai Soil Investigation Limited | | Live |
| NEW SOIL CULTURE INVESTMENT (HK) LIMITED | Private company limited by shares | Live |
| Soil Learning Ctr Limited | Private company limited by shares | Live |
| long soil Limited | | Live |
| ADS SOIL MEDIA LIMITED | Private company limited by shares | Live |
| China Soil Pollution Repair Limited | Private company limited by shares | Live |
| RICH SOIL LIMITED | Private company limited by shares | Live |
| San'an Soil Purification Limited | Private company limited by shares | Live |
| WU SANG YUEN SOIL CONSERVATION LIMITED | | Live |
| SOIL TO SOUL COMPANY LIMITED | Private company limited by shares | Live |
| SOIL TO SOUL CONCEPTS LIMITED | Private company limited by shares | Live |
| Soul Soil International (HK) Company Limited | Private company limited by shares | Live |
| STRONG SOIL LIMITED | Private company limited by shares | Dissolved |
| Soil Survey & Geosciences Limited | Private company limited by shares | Live |
| ADVANCED SOIL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| REYNOLDS SOIL TECHNOLOGIES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SOIL CORE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Fertile Soil Technology Company Limited | | Live |
| ASIA SOIL TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| SUN BONG SOIL TRANSIT LIMITED | Private company limited by shares | Live |
| WONDERFUL SOIL LIMITED | Private company limited by shares | Dissolved |
| Soil4Life Limited | Private company limited by shares | Live |
| Soilable Eco-Packaging Limited | | Live |
| SOILIOS LIMITED | Private company limited by shares | Live |
| HOP LEE SOILS LIMITED | Private company limited by shares | Dissolved |
| SOILS AND MATERIALS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Metaverse Scarce Soils Limited | | Live |
| Soil-Slot Limited | Private company limited by shares | Dissolved |
| SoilTap HK Limited | Private company limited by shares | Live |
| Soilwood Investments Limited | Private company limited by shares | Live |
| SOIM INFORMATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SO-IN CAUSEWAY BAY EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN BLESSINGS EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN DILIGENCE EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN WISDOM EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN INSPIRE EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN JIREH EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN JOYFUL EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN EDUCATION CENTRE (K.E.) LIMITED | Private company limited by shares | Live |
| SO-IN SCHOLARS EDUCATION CENTRE LIMITED | | Live |
| SO-IN EDUCATION CENTRE (S.S.K.E.) LIMITED | Private company limited by shares | Live |
| SO-IN Vision Education Centre Limited | Private company limited by shares | Live |
| SO-IN EDUCATION CENTRE (WHAMPOA) LIMITED | Private company limited by shares | Live |
| SO-IN EDUCATION CENTRE (YAUMATEI) LIMITED | Private company limited by shares | Live |
| SO-IN ETERNAL EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN EXCEL EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN KEPLER EDUCATION CENTRE LIMITED | | Live |
| SO-IN SUNNY EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SO-IN Talent Education Centre Limited | Private company limited by shares | Live |
| SO-IN Tech Limited | Private company limited by shares | Live |
| SOIN TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SO-IN WILLEY EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| Soina Limited | | Live |
| Soina Education Consulting Co., Limited | Private company limited by shares | Live |
| So-Ingenious Limited | Private company limited by shares | Live |