| BRIGHT SOUND LIMITED | Private company limited by shares | Dissolved |
| SOUND BRIGHT LIMITED | Private company limited by shares | Dissolved |
| SOUND BRIGHT LIMITED | Private company limited by shares | Dissolved |
| BRIGHT SOUND LIMITED | Private company limited by shares | Live |
| SOUND BRIGHT LIMITED | Private company limited by shares | Live |
| SOUND BRIGHT ELECTRONICS LIMITED | Private company limited by shares | Live |
| BRIGHT SOUND HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SOUND BRIGHT INVESTMENT LIMITED | Private company limited by shares | Live |
| Bright Sound Technology Limited | | Live |
| BRIGHT SOUND TRADING COMPANY LIMITED | Private company limited by shares | Live |
| BROAD SOUND ENTERPRISE LIMITED | Private company limited by shares | Live |
| BROADWAY PROFESSIONAL SOUND (H.K.) LIMITED | Private company limited by shares | Live |
| Wonderful Sound Buddhas Limited | Private company limited by shares | Live |
| SOUND BUSINESS LIMITED | Private company limited by shares | Dissolved |
| BUSY SOUND LIMITED | Private company limited by shares | Dissolved |
| XIAMEN SOUND BUZZER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CAIN SOUND LIMITED | Private company limited by shares | Dissolved |
| CAPITAL SOUND LIMITED | Private company limited by shares | Dissolved |
| NEW SOUND (CASE BLANK) LIMITED | Private company limited by shares | Dissolved |
| NEW SOUND WATCH CASE LIMITED | Private company limited by shares | Live |
| SOUND CASH LIMITED | Private company limited by shares | Dissolved |
| SOUND CASTLE LIMITED | Private company limited by shares | Live |
| Celsus Sound Limited | Private company limited by shares | Live |
| SOUND CENTURY LIMITED | Private company limited by shares | Dissolved |
| SOUND CHAMBER LIMITED -THE- | Private company limited by shares | Dissolved |
| SOUND CHAMBER (HONG KONG) LIMITED -THE- | Private company limited by shares | Live |
| CHAMPION SOUND LIMITED | Private company limited by shares | Dissolved |
| CHAMPION SOUND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CHARMING SOUND LIMITED | Private company limited by shares | Live |
| CHARTER SOUND LIMITED | Private company limited by shares | Live |
| CHARTER SOUND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| CHASE SOUND LIMITED | Private company limited by shares | Dissolved |
| CHEER SOUND LIMITED | Private company limited by shares | Dissolved |
| CHEER SOUND LIMITED | Private company limited by shares | Live |
| CHEER SOUND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUND CHEER PROPERTY LIMITED | Private company limited by shares | Live |
| SOUND CHEER TRADING LIMITED | Private company limited by shares | Dissolved |
| SOUND CHEERS ASIA LIMITED | Private company limited by shares | Dissolved |
| SOUND CHEERS ENTERPRISE LIMITED | Private company limited by shares | Live |
| SOUND CHEERS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CHELCO SOUND (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| CHERRY SOUND LIMITED | Private company limited by shares | Live |
| CHIME SOUND LIMITED | Private company limited by shares | Live |
| MK SOUND CHINA COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA SOUND LIMITED | Private company limited by shares | Live |
| SOUND OF CHINA LIMITED -THE- | Private company limited by shares | Live |
| CHINA VAN SOUND LIMITED | Private company limited by shares | Live |
| CHINA SOUND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ITALY MACON SOUND (CHINA) LIMITED | Private company limited by shares | Live |
| SIGHT & SOUND (CHINA) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SOUND OF HEAVEN CHOIR COMPANY LIMITED | Private company limited by shares | Live |
| Sound Waves (Tung Chung) English Education Limited | Private company limited by shares | Live |
| CHUNG'S DIGITAL SOUND LIMITED | Private company limited by shares | Dissolved |
| CINE SOUND LIMITED | Private company limited by shares | Dissolved |
| CINEDIGIT SOUND LIMITED | Private company limited by shares | Live |
| CINEFEX SOUND STUDIO LIMITED | Private company limited by shares | Live |
| CITI SOUND ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| SOUND CITY LIMITED | Private company limited by shares | Live |
| CITY SOUND DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CITY SOUND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CLEAR SOUND ELECTRONICS CO. LIMITED | Private company limited by shares | Dissolved |
| CLEVER SOUND LIMITED | Private company limited by shares | Dissolved |
| VAN SOUND CLUB GROUP LIMITED | Private company limited by shares | Live |
| SOUND PRO CO., LIMITED | Private company limited by shares | Live |
| Accolade Sound Technology Co., Limited | Private company limited by shares | Live |
| ALTON SOUND CO., LIMITED | Private company limited by shares | Dissolved |
| British Celestion Sound Technology Co., Limited | Private company limited by shares | Live |
| TCB CHAO SOUND NETWORK CO., LIMITED | Private company limited by shares | Live |
| CHOI YE (HK) SOUND & LIGHT TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Chinese Cloud Sound Publishing Co., Limited | Private company limited by shares | Live |
| CREST SOUND CO., LIMITED | Private company limited by shares | Live |
| East sound Technology Co., Limited | Private company limited by shares | Live |
| RENTAI ELECTRIC SOUND EQUIPMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| HONGKONG LONGSOUND ELECTRIC SOUND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| MK SOUND ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| Sound Of Flower (China) Co., Limited -The- | Private company limited by shares | Live |
| HK SHENG SHENG ZUI SOUND GROUP CO., LIMITED | Private company limited by shares | Live |
| TCB HKSTV CHAO SOUND CO., LIMITED | Private company limited by shares | Live |
| TCB HKSTV CHAO SOUND (HOLDING) CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Hi Sound Technology Co., Limited | Private company limited by shares | Live |
| TOP SOUND (HONG KONG) TRADING CO., LIMITED | Private company limited by shares | Live |
| Hongkong Art of Sound International Culture Communication Co., Limited | | Live |
| HONGKONG JUYUAN SHUANGMU STAGE & SOUND EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| SOUND CHOICE HOUSEHOLD PRODUCTS CO., LIMITED | Private company limited by shares | Dissolved |
| Germany fort sea sound industrial co., Limited | Private company limited by shares | Live |
| iJEJA Sound Industrial Co., Limited | Private company limited by shares | Live |
| SOUND INNOVATION CO., LIMITED | Private company limited by shares | Live |
| Leafun Light & Sound Technology (HK) Co., Limited | Private company limited by shares | Live |
| HONGFUNG LIGHT SOUND TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| ALICE PRO LIGHTING AND SOUND CO., LIMITED | Private company limited by shares | Live |
| ORPANIC LIGHTING & SOUND CO., LIMITED | Private company limited by shares | Live |
| PETER SOUND (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| New Sound Power Co., Limited | Private company limited by shares | Live |
| USA SHENG BA SOUND CO., LIMITED | Private company limited by shares | Live |
| SHENZHEN SOUND OF SILENCE CO., LIMITED | Private company limited by shares | Live |
| SOUNDRHYTHM SOUND CO., LIMITED | Private company limited by shares | Dissolved |
| SEA SOUND STRINGS CO., LIMITED | Private company limited by shares | Dissolved |
| SOUND HUNTER TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| Tai Sound Technology Co., Limited | Private company limited by shares | Live |
| TOP SOUND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |