| SOUND FINANCE AND INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Grace Sound Healthcare Hong Kong Limited | | Live |
| MARK SOUND (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG SOUND REPUTATION INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| Visual Sound Digital (Hong Kong) Technology Limited | Private company limited by shares | Live |
| SOUND WAVE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Hong kong magic sound electronic technology Limited | Private company limited by shares | Live |
| HONG KONG SOUND SOUND MAGNETIC TAPES LIMITED | Private company limited by shares | Dissolved |
| PRINCE WILLIAM SOUND HOTEL MANAGEMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| LUCKY SOUND METAL & CHEMICALS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NATURAL SOUND ELECTRONICS LIMITED | Private company limited by shares | Live |
| Hong Kong Association of Pictures & Sound Production Limited | 擔保有限公司 | Live |
| HONG KONG SOUND PLASTICS METAL LIMITED | Private company limited by shares | Live |
| POWER SOUND HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SOUND POWER (HONG KONG) LIMITED | Private company limited by shares | Live |
| SIGHT & SOUND (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Sound Slow Culture Media Co., Limited | | Live |
| South Sound Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG DIGITAL SPACE SOUND TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Strata Sound (Hong Kong) Limited | Private company limited by shares | Live |
| Hong Kong Solar Sound System Limited | Private company limited by shares | Live |
| SOUND TACTICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| (Hong Kong) Cloud Sound International Intelligent Technology Company Limited | Private company limited by shares | Live |
| SOUND OF MUSIC INTERNATIONAL CULTURAL TRANSMISSION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SOUND WELL (HONG KONG) CO. LIMITED | Private company limited by shares | Live |
| HONGKONG CHRISVON'S SOUND (HOLDINGS) LIMITED | Private company limited by shares | Live |
| HONGKONG BEAUTY SOUND TRADE CO., LIMITED | Private company limited by shares | Live |
| HONGKONG SOUND EXPORT&IMPORT CO., LIMITED | | Live |
| Hongkong Sound Wave Co., Limited | Private company limited by shares | Live |
| HONGKONG SOUND DESIGNER TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HACHIYO ELECTRIC SOUND COMPANY (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG SOUND PAL ELECTRONICS CO., LIMITED | Private company limited by shares | Dissolved |
| SOUND O'MUZE (HONGKONG) ELECTRONICS CORPORATION LIMITED | Private company limited by shares | Live |
| Hongkong Medalist Electronics and Sound Limited | Private company limited by shares | Live |
| Ever Sound (HongKong) Limited | Private company limited by shares | Live |
| HONGKONG FUKAI SOUND CONSULTANTS LIMITED | Private company limited by shares | Live |
| SOUND OF MUSIC (HONGKONG) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| HONGKONG RED SOUND LEATHER LIMITED | Private company limited by shares | Live |
| Link Sound (Hongkong) Commerce Co., Limited | Private company limited by shares | Live |
| HONGKONG SOUND METALS & MACHINERY LIMITED | Private company limited by shares | Live |
| HONGKONG MINGO SOUND TRADE CO., LIMITED | Private company limited by shares | Live |
| Sound Spread (Hongkong) Limited | Private company limited by shares | Live |
| BEST SOUND TECHNOLOGY HONGKONG LIMITED | Private company limited by shares | Live |
| HONGKONG WAV SOUND TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SOUND DRAGON HONGKONG TECHNOLOGY LIMITED | | Live |
| HONGKONG AUSPICIOUS SOUND TRADING CO., LIMITED | Private company limited by shares | Live |
| HONGKONG VANTONE SOUND OF SUMMER COMPANY LIMITED | Private company limited by shares | Live |
| Hongkong Wonderful Sound Limited | Private company limited by shares | Live |
| SOUND HOST COMPANY LIMITED | Private company limited by shares | Dissolved |
| E House Sound Production Limited | | Live |
| HOWE SOUND LIMITED | Private company limited by shares | Live |
| Huake Sound Co., Limited | Private company limited by shares | Live |
| HUGE SOUND INVESTMENTS LIMITED | Private company limited by shares | Live |
| SOUND IDEA LIMITED | Private company limited by shares | Live |
| IDEAL SOUND ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| IDEATECH LIGHT AND SOUND LIMITED | Private company limited by shares | Live |
| IMAGE N SOUND LIMITED | Private company limited by shares | Dissolved |
| SOUND IMAGE LIMITED | Private company limited by shares | Dissolved |
| SPACE OCEAN IMAGE & SOUND LIMITED | Private company limited by shares | Live |
| Sound Import & Export Co., Limited | Private company limited by shares | Live |
| MAGIC SOUND IMPORT AND EXPORT CO., LIMITED | Private company limited by shares | Live |
| Ocean Sound Importand Export Company Limited | Private company limited by shares | Live |
| First Sound Inception Co., Limited | Private company limited by shares | Live |
| A SOUND INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUND WIN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SKY SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SOUND INDUSTRIAL LIMITED | Private company limited by shares | Live |
| A SOUND INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hongkong Ewell Lighting And Sound Industrial Co., Limited | Private company limited by shares | Live |
| DRAGON SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| FORTUNE SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GLORY SOUND INDUSTRIAL LIMITED | Private company limited by shares | Live |
| GOOD SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GRACE SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HAPPY SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Sound Good (Hong Kong) Industrial Limited | Private company limited by shares | Live |
| SOUND LUCK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| MASTER SOUND INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| MORNING SOUND INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SOUND PACIFIC INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SAFE & SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SILVER SOUND INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WON SOUND INDUSTRIES LIMITED | Private company limited by shares | Live |
| NEW SOUND INDUSTRIES LIMITED | Private company limited by shares | Live |
| CHEER SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| CHIEF SOUND INDUSTRIES LIMITED | Private company limited by shares | Live |
| CHINA SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| HO SOUND INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| MAXIMUM SOUND INDUSTRIES CO., LIMITED | Private company limited by shares | Dissolved |
| GLOSS SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SOUND GOOD INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| GRAND SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SOUND BASE INDUSTRIES (HONG KONG) LIMITED | Private company limited by shares | Live |
| LUCKY SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| OCEAN SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| PARK SOUND INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SOUND TIME INDUSTRIES LIMITED | Private company limited by shares | Live |
| ENGLAND TKW SOUND (INDUSTRY) LIMITED | Private company limited by shares | Live |
| SOUND DRAGON TECHNOLOGY INDUSTRY LIMITED | Private company limited by shares | Live |
| SOUND & POWER TECHNOLOGY INDUSTRY LIMITED | Private company limited by shares | Live |