| BEST SOUND ELECTRICAL APPLIANCES (HK) LIMITED | Private company limited by shares | Live |
| SOUND ELECTRONICS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| EVER SOUND ELECTRONICS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SOUND MASTER ELECTRONICS (H.K.) LIMITED | Private company limited by shares | Live |
| Sound Pacific Electronics (HK) Limited | Private company limited by shares | Live |
| SOUND FORTUNE (HK) INVESTMENTS LIMITED | Private company limited by shares | Live |
| GENERAL SOUND (HK) LIMITED | Private company limited by shares | Live |
| GLOBAL SOUND (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SOUND GOOD (HK) LIMITED | Private company limited by shares | Dissolved |
| GREAT SOUND (H.K.) LIMITED | Private company limited by shares | Dissolved |
| H.K. ADS SOUND INTERNATIONAL (GROUP) LIMITED | Private company limited by shares | Dissolved |
| SOUND HOPE (H.K.) ENTERPRISE CO. LIMITED | Private company limited by shares | Dissolved |
| WEI SOUND (HK) INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SOUND PLUS (HK) INDUSTRIAL CO., LIMITED | | Live |
| SOUND PULSE INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| RICH SOUND INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| KEUK DONG SOUND (HK) CO. LIMITED | Private company limited by shares | Dissolved |
| KOLIN MUSICAL SOUND (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UK MEISHENG (H.K.) SOUND EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| MUSICAL SOUND (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| PERFECTING SOUND (HK) ELECTRONIC LIMITED | Private company limited by shares | Live |
| VIDEO SOUND (HK) PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| ADVANCED SOUND PRODUCTS (HK) LIMITED | Private company limited by shares | Dissolved |
| Puget Sound Digital (HK) Limited | | Live |
| SAMMI SOUND (H.K.) COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Sound Shaker Audio (HK) Limited | Private company limited by shares | Live |
| SILVER SOUND (HK) LIMITED | Private company limited by shares | Dissolved |
| SOUND STRATEGY (HK) LIMITED | Private company limited by shares | Live |
| TAIWAN SOUND ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SOUND (H.K.) TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| SOUND TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| SOUND RICH TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SWETZ SOUND (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SOUND TRADE (HK) LIMITED | Private company limited by shares | Dissolved |
| SOUND BELL UNIONTECH (HK) LIMITED | Private company limited by shares | Live |
| SOUND WISDOM (HK) LIMITED | Private company limited by shares | Live |
| SOUND ENTERPRISES HOLDING CO. LIMITED | Private company limited by shares | Dissolved |
| KEY SOUND (HOLDINGS) COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP SOUND HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| WIN SOUND HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| Pei Sound Holdings Company Limited | Private company limited by shares | Live |
| SOUND CHARM HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND CLASSY HOLDINGS LIMITED | Private company limited by shares | Live |
| TBP Sound Cloud Holdings (HK) Limited | Private company limited by shares | Live |
| TBP Sound Cloud Holdings (HK) II Limited | Private company limited by shares | Live |
| EVOS SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| GLORY SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND GOOD HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND GRACE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| GREAT SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| GREAT SOUND FAR EAST HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| SILVER SOUND GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| Ideal Sound Holdings Limited | Private company limited by shares | Live |
| A SOUND HOLDINGS ( INTERNATIONAL ) COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOLLY SOUND (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |
| LONG SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| Sound of Nature Holdings Limited | Private company limited by shares | Live |
| SOUND RISE HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SILVER SOUND HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SWETZ SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND VIEW HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| WELL SOUND HOLDINGS LIMITED | Private company limited by shares | Live |
| SOUND HOME INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| HOME SOUND TRADING LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TIANLAI (SOUND ABSORPTION. SOUNDPROOF) DECORATION MATERIAL LIMITED | Private company limited by shares | Live |
| CHAMPION SOUND (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG WISDOM SOUND ACOUSTICS CO., LIMITED | Private company limited by shares | Live |
| HAI XIAN (HONG KONG) INTERNATIONAL SOUND INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| JUNG UM (HONG KONG) SOUND CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Sound of Justice Technology Co., Limited | Private company limited by shares | Live |
| TOP SOUND (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| One Stage (Hong Kong) Lighting Sound Engineering Co., Limited | Private company limited by shares | Live |
| HONG KONG WORLD SOUND ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| Music Sound (Hong Kong) Technology Co., Limited | Private company limited by shares | Live |
| Hong Kong Sound of Ocean Trading Co., Limited | Private company limited by shares | Live |
| SAFE & SOUND SHIPPING LINES (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Sound Solutions (Hong Kong) Co., Limited | Private company limited by shares | Live |
| AMERICAN UNION SOUND (HONG KONG) EDUCATION INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| HONG KONG DATANG XIAN SOUND EDUCATION CONSULTING CO., LIMITED | Private company limited by shares | Live |
| HONG KONG DAIWA SOUND LIMITED | Private company limited by shares | Live |
| SOUND DECISIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| GLOBAL SOUND (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Sound Global (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG SOUND GLORY LIMITED | Private company limited by shares | Live |
| HONG KONG GOOD SOUND LIMITED | Private company limited by shares | Live |
| Sound of Media Entertainment Group (Hong Kong) Company Limited | Private company limited by shares | Live |
| HONG KONG TREND SOUND STRATEGY (GROUP) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Sound Healing Association Limited | | Live |
| Sound of Hope (Hong Kong) Limited | Private company limited by shares | Live |
| SOUND OF HOPE (HONG KONG) LIMITED | | Live |
| NEW SOUND INDUSTRIAL (HONG KONG ) CO., LIMITED | | Live |
| Sound Sun (Hong Kong) Industrial Investment Limited | Private company limited by shares | Live |
| NEW SOUND INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| GOOD SOUND PRECISION (HONG KONG) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONG KONG SWORD SOUND INVESTMENT LIMITED | Private company limited by shares | Live |
| SOUND WAY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| PRO SOUND HONG KONG LIMITED | Private company limited by shares | Dissolved |
| Yu Sound (Hong Kong) Limited | | Live |
| HONG KONG BRIGHT HOLE LIGHTING AND SOUND LIMITED | Private company limited by shares | Live |