| C & C SOUNDAS COMPANY LIMITED | Private company limited by shares | Dissolved |
| C&C SOUNDAS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDAS ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| SOUNDATION COMPANY LIMITED | Private company limited by shares | Live |
| SOUNDAY LIMITED | Private company limited by shares | Dissolved |
| Soundbass technology Co., Limited | Private company limited by shares | Live |
| SOUNDBEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUNDBLANK COMPANY LIMITED | Private company limited by shares | Live |
| SOUNDBOW LIMITED | Private company limited by shares | Dissolved |
| SOUNDBOX (HK) ACOUSTIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Soundbrenner Limited | Private company limited by shares | Live |
| Soundbridge Asia Limited | Private company limited by shares | Dissolved |
| SOUNDBRO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SOUNDCHIEF LIMITED | Private company limited by shares | Dissolved |
| SOUNDCHOICE LIMITED | Private company limited by shares | Live |
| SOUNDCOCO HK LIMITED | Private company limited by shares | Live |
| SOUNDCOUSTIC TECHNOLOGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SOUNDCROWN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUNDDO AUDIO (HK) LIMITED | Private company limited by shares | Live |
| SOUNDEASE ENTERPRISE LIMITED | Private company limited by shares | Live |
| SOUNDEK INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SOUNDENJOY ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDER COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDER AGENCIES LIMITED | Private company limited by shares | Live |
| SOUNDER MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDER RADIO LIMITED | Private company limited by shares | Dissolved |
| GC Sounder Solutions Limited | Private company limited by shares | Live |
| SWIFT SOUNDER LIMITED | Private company limited by shares | Live |
| SOUNDERNIER ENTERPRISES CO., LIMITED | Private company limited by shares | Dissolved |
| SOUNDEST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Soundever Limited | Private company limited by shares | Live |
| SOUNDEX COMPANY LIMITED | Private company limited by shares | Live |
| GERMANY SOUNDEX ENERGY GROUP SHARES LIMITED | Private company limited by shares | Live |
| SOUNDEX INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Apr-1995 |
| SOUNDEX TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SOUNDEYEWEAR LIMITED | Private company limited by shares | Dissolved |
| SOUNDFACTOR ASIA LIMITED | Private company limited by shares | Live |
| SOUNDFIELD LIMITED | Private company limited by shares | Dissolved |
| SOUNDFIRM ASIA LIMITED | Private company limited by shares | Live |
| Soundforce Enterprise Limited | Private company limited by shares | Live |
| Soundford Limited | Private company limited by shares | Live |
| Soundgineer Limited | | Live |
| SOUNDGOOD LIMITED | Private company limited by shares | Live |
| SOUNDGOOD ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDGOOD INVESTMENT LIMITED | Private company limited by shares | Live |
| SOUNDGRILL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUNDGROUP INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUNDICARE LIMITED | | Live |
| Soundicare Co., Limited | Private company limited by shares | Live |
| Sound-in Group Limited | Private company limited by shares | Live |
| SOUNDINVEST LIMITED | Private company limited by shares | Dissolved |
| Soundion Technology Limited | Private company limited by shares | Live |
| SOUNDISH TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SOUND-JOINT LIMITED | Private company limited by shares | Dissolved |
| SOUNDKA LIMITED | Private company limited by shares | Dissolved |
| SOUNDKIND LIMITED | Private company limited by shares | Dissolved |
| SOUNDKING LIMITED | Private company limited by shares | Dissolved |
| SOUNDLAB COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDLAB USA LIMITED | Private company limited by shares | Live |
| Elektric Soundlab Limited | Private company limited by shares | Live |
| SOUNDLAND COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDLIGHT LIMITED | Private company limited by shares | Dissolved |
| SOUNDLINK LIMITED | Private company limited by shares | Dissolved |
| SOUNDLINK ACOUSTIC SERVICES LIMITED | Private company limited by shares | Dissolved |
| SOUNDLINK DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| SOUNDLINK (HK) INFORMATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SOUNDLINK TRADING (HONG KONG) LIMITED | Private company limited by shares | Live |
| Soundlink Technology International Limited | Private company limited by shares | Live |
| SOUNDLINK TRADING LIMITED | Private company limited by shares | Dissolved |
| Soundluck Limited | Private company limited by shares | Live |
| SOUNDMAAX COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUNDMAE INDUSTRY LIMITED | Private company limited by shares | Live |
| Soundmagical Electronics Co., Limited | Private company limited by shares | Live |
| SoundMagical Technology Co., Limited | Private company limited by shares | Live |
| SOUNDMAGUS GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| SOUNDMAGUS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SoundMate Limited | Private company limited by shares | Live |
| Soundmate Limited | Private company limited by shares | Live |
| SOUNDMAX LIMITED | Private company limited by shares | Live |
| ADI SOUNDMAX LIMITED | Private company limited by shares | Live |
| SOUNDMORE LIMITED | Private company limited by shares | Dissolved |
| Soundmy Technologies Limited | Private company limited by shares | Live |
| SOUNDNESS LIMITED | Private company limited by shares | Dissolved |
| SOUNDNESS LIMITED | Private company limited by shares | Live |
| SOUNDNESS INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CENTURY SOUNDNET LIMITED | Private company limited by shares | Live |
| SOUNDNEX LIMITED | Private company limited by shares | Dissolved |
| Soundon New Energy Technology Limited | Private company limited by shares | Live |
| SOUNDON TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| SOUNDPIA HK LIMITED | Private company limited by shares | Dissolved |
| SOUNDPIE CO., LIMITED | Private company limited by shares | Live |
| SOUNDPOCKET LIMITED | Company limited by guarantee | Live |
| Soundpost Arts and Music Hong Kong Limited | | Live |
| SOUNDPOST ARTS AND MUSIC LIMITED | Private company limited by shares | Live |
| SHENZHEN SOUNDPOWER CO., LIMITED | Private company limited by shares | Live |
| SOUNDPRO ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SOUNDREAVER LIMITED | Private company limited by shares | Live |
| SOUNDRICH LIMITED | Private company limited by shares | Live |
| SOUNDRIL LIMITED | Private company limited by shares | Dissolved |
| HK Sounds Limited | Private company limited by shares | Live |