| SOUND HOPE (HONG KONG) GLOBAL LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| SOUND SPEED LOGISTICS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| LONG SOUND LIMITED | Private company limited by shares | Dissolved |
| SOUND LOOK COMPANY LIMITED | Private company limited by shares | Dissolved |
| Loud Sound Solutions Limited | Private company limited by shares | Live |
| LOUDER SOUND LIMITED | Private company limited by shares | Live |
| SOUND OF LOVE MUSIC & CULTURE COMMUNICATION CO., LIMITED | Private company limited by shares | Live |
| LOYAL SOUND LIMITED | Private company limited by shares | Dissolved |
| LOYAL SOUND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LOYAL SOUND INVESTMENT LIMITED | Private company limited by shares | Live |
| LUCKY SOUND LIMITED | Private company limited by shares | Dissolved |
| LUCKY SOUND LIMITED | Private company limited by shares | Live |
| LUCKY SOUND ASIA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| LUCKY SOUND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SOUND ELECTRIC MACHINE MFY. LIMITED | Private company limited by shares | Dissolved |
| SOUND PLASTIC MACHINE (H.K.) LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Mar-2012 |
| SOUND MACHINE RECORDING STUDIO COMPANY LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU MAGIC SOUND PROFESSIONAL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| MAGICAL SOUND LIMITED | Private company limited by shares | Live |
| SOUND SOUND MAGNETIC TAPES LIMITED | Private company limited by shares | Dissolved |
| NEW SOUND MAGNETIC TAPES COMPANY LIMITED | Private company limited by shares | Dissolved |
| JET SOUND MAGNETICS LIMITED | Private company limited by shares | Live |
| MAIN SOUND LIMITED | Private company limited by shares | Dissolved |
| SOUND MAKER LIMITED | | Live |
| MAKYU SOUND CREATIVE LIMITED | | Live |
| XIANFENG SOUND (MALAYSIA) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SOUND MANAGE LIMITED | Private company limited by shares | Live |
| Sound Wealthy Management Limited | Private company limited by shares | Live |
| SOUND WELL MANAGEMENT LIMITED | Private company limited by shares | Live |
| SOUND WELL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| AIR SOUND MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| A SOUND MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| YUELUR SOUND BOX MANUFACTURE CO., LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SOUND FACTORY AUDIO EQUIPMENT MANUFACTURE CO., LIMITED | Private company limited by shares | Live |
| POP SOUND MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW SOUND CASSETTES MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| Maple Sound Limited | Private company limited by shares | Dissolved |
| MARINE SOUND LIMITED | Private company limited by shares | Dissolved |
| SOUND SOUND TECHNOLOGY MARKETING LIMITED | Private company limited by shares | Dissolved |
| Marvelous Sound of Sages Publishing Limited | Private company limited by shares | Live |
| MASS SOUND LIMITED | Private company limited by shares | Live |
| SOUND MASTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| MASTER SOUND LIMITED | Private company limited by shares | Dissolved |
| Sound Master Limited -The- | Private company limited by shares | Live |
| GRAND SOUND MATERIAL LIMITED | Private company limited by shares | Dissolved |
| HK YBS SOUND MATERIALS LIMITED | Private company limited by shares | Live |
| Sound New Materials Co., Limited | Private company limited by shares | Live |
| Maxwell Intelligent Sound Company Limited | Private company limited by shares | Live |
| MEDIA SOUND LIMITED | Private company limited by shares | Dissolved |
| CONTEC SOUND MEDIA LIMITED | Private company limited by shares | Live |
| HIPPOCRITE SOUND & MEDIA LIMITED | Private company limited by shares | Live |
| Image Sound Media Limited | Private company limited by shares | Live |
| MEDIA SOUND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| NEW SOUND MEDICAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MEGA SOUND LIMITED | Private company limited by shares | Dissolved |
| MEGA SOUND LIMITED | Private company limited by shares | Live |
| MELODY SOUND LIMITED | Private company limited by shares | Dissolved |
| MELODY SOUND ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| MERIT SOUND LIMITED | Private company limited by shares | Live |
| MERRY SOUND LIMITED | Private company limited by shares | Dissolved |
| METRO SOUND LIMITED | Private company limited by shares | Live |
| MILL SOUND LIMITED | Private company limited by shares | Dissolved |
| MILLION SOUND LIMITED | Private company limited by shares | Dissolved |
| MILLION SOUND LIMITED | Private company limited by shares | Live |
| MILLION SOUND ENTERPRISES LIMITED | Private company limited by shares | Live |
| MILLION SOUND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SOUND MIND COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mindfulness Sound HK Limited | | Live |
| HONGKONG SOUND SINCERITY MINING INVERSMENT CO., LIMITED | Private company limited by shares | Live |
| MIRO SOUND & VISION LIMITED | Private company limited by shares | Live |
| MODERN SOUND LIMITED | Private company limited by shares | Live |
| NEW SOUND PLASTIC MOLDING LIMITED | Private company limited by shares | Dissolved |
| Sound Money Management, Limited | Private company limited by shares | Dissolved |
| MORAL SOUND LIMITED | Private company limited by shares | Dissolved |
| MORAL SOUND LIMITED | Private company limited by shares | Live |
| MORNING SOUND LIMITED | Private company limited by shares | Dissolved |
| MOSLEY SOUND LIMITED | Private company limited by shares | Live |
| SOUND MOST COMPANY LIMITED | Private company limited by shares | Dissolved |
| MOST SOUND INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SOUND MOST INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SOUND MOTION ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SOUND MOTORS LIMITED | Private company limited by shares | Live |
| SOUND MOUNT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MANSONS MOVIE SOUND ADVERTISING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| MULTI SOUND INVESTMENT LIMITED | Private company limited by shares | Live |
| MULTI SOUND TECHNOLOGIES PTE. LIMITED | Private company limited by shares | Live |
| SOUND OF MUSIC LIMITED | Private company limited by shares | Live |
| HAPPY SOUND MUSIC LIMITED | Private company limited by shares | Live |
| SOUND SOUND MUSIC PUBLISHING CO. LIMITED | Private company limited by shares | Live |
| MUTUAL SOUND COMPANY LIMITED | Private company limited by shares | Live |
| Nada Sound Healing Hong Kong Limited | Private company limited by shares | Live |
| NAGAMA SOUND LIMITED | Private company limited by shares | Dissolved |
| Nativ Sound Limited | Private company limited by shares | Live |
| NATURAL SOUND LIMITED | Private company limited by shares | Dissolved |
| NATURAL SOUND LIMITED | Private company limited by shares | Dissolved |
| NATURAL SOUND ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| SOUND OF NATURE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SOUND NATURE LIMITED | | Live |
| NATURE SOUND LIMITED | | Live |
| SOUND NEAT ASIA LIMITED | Private company limited by shares | Dissolved |