| UNITED STEP MEDIA LIMITED | | Live |
| Stepfurther Media Limited | Private company limited by shares | Dissolved |
| BE STILL MEDIA LIMITED | Private company limited by shares | Live |
| STITCH MEDIA LIMITED | Private company limited by shares | Live |
| Stockmart Media Limited | Private company limited by shares | Live |
| Stoman Media Limited | Private company limited by shares | Live |
| Stone Media Limited | | Live |
| STONE MEDIA AND PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| Storm Media Limited | Private company limited by shares | Live |
| STORMZ MEDIA LIMITED | Private company limited by shares | Dissolved |
| China Story Media Co., Limited | Private company limited by shares | Live |
| STORYHOTLINE MEDIA LIMITED | Private company limited by shares | Live |
| STRATEGIC MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAX STRATEGIC MEDIA LIMITED | Private company limited by shares | Dissolved |
| LONG YEAR CREATIVE MEDIA PRODUCTIONS AND STRATEGICS LIMITED | Private company limited by shares | Live |
| STRAWBERRY PICTURES GLOBAL MEDIA LIMITED | Private company limited by shares | Live |
| Old Street Media Limited | Private company limited by shares | Live |
| SANDS STREET MEDIA LIMITED | Private company limited by shares | Live |
| StreetAd Media Limited | Private company limited by shares | Live |
| Stress Free Media Hong Kong Limited | Private company limited by shares | Live |
| STRONG MEDIA LIMITED | Private company limited by shares | Live |
| Strong Choice Media (China) Limited | Private company limited by shares | Live |
| STRONG MEDIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Studio 12 Media Limited | Private company limited by shares | Live |
| FREE MEDIA STUDIO LIMITED | Private company limited by shares | Dissolved |
| STUDIO814 MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Art Studios Entertainment Media Co., Limited | Private company limited by shares | Dissolved |
| New Studios Media (Hong Kong) Co., Limited | Private company limited by shares | Live |
| ASIA STUFF MEDIA LIMITED | Private company limited by shares | Live |
| STVDIO MEDIA LIMITED | Private company limited by shares | Dissolved |
| STYLE MEDIA LIMITED | Private company limited by shares | Live |
| A7 Style Media Co Limited | | Live |
| FITNESS STYLE MEDIA HOLDING LIMITED | Private company limited by shares | Live |
| STYLE MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Kong Style Media Limited | Private company limited by shares | Live |
| StyleTV Media Limited | Private company limited by shares | Dissolved |
| SUCCESS MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUCCESS FIRST MEDIA LIMITED | Private company limited by shares | Live |
| SUDO DIGITAL MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUEE MEDIA INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Sumint Media Limited | Private company limited by shares | Live |
| Sunlight Media Limited | Private company limited by shares | Live |
| Sunmobi Media Limited | Private company limited by shares | Dissolved |
| SUNNY MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUNNY MEDIA CAPITAL LIMITED | Private company limited by shares | Live |
| SUNNY VIEW MEDIA LIMITED | | Live |
| SUNRISE MEDIA LIMITED | Private company limited by shares | Live Commenced dormancy on 17-Apr-2014 |
| SUNRISE MEDIA CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Sunshine Media Limited | Private company limited by shares | Live |
| CHINA SUNSHINE MEDIA (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNSHINE INTERNET MEDIA CO., LIMITED | | Live |
| SUNSHINE MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| Sunshine Media International Limited | Private company limited by shares | Dissolved |
| SUNSHINE MEDIA (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| Wind Sunshine Media Limited | | Live |
| SUPER MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUPER MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUPER 8 MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUPER MEDIA LIMITED | Private company limited by shares | Live |
| SUPER MEDIA LIMITED | Private company limited by shares | Live |
| SUPER MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| Super Media International Group Limited | Private company limited by shares | Live |
| now Super Sports Media Limited | Private company limited by shares | Live |
| SUPERB MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUPERGING CREATIVE MEDIA LIMITED | | Live |
| SuperGrid Media China Limited | Private company limited by shares | Dissolved |
| Supernova Global Media Limited | | Live |
| Superstar Media International Co., Limited | | Live |
| Six Superstars Media Culture Limited | Private company limited by shares | Live |
| MEDIA & EQUIPMENT SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| SUPREME MEDIA LIMITED | Private company limited by shares | Dissolved |
| SUPREME MEDIA LIMITED | Private company limited by shares | Live |
| Sum Supreme Media Co. Limited | Private company limited by shares | Live |
| Sum Supreme Media (HK) Limited | Private company limited by shares | Live |
| Supreme Media Production Limited | Private company limited by shares | Live |
| SURE LONG MEDIA ADVERTISING & CULTURE ADVERTISING LIMITED | Private company limited by shares | Live |
| Surfing Media Company Limited | | Live |
| Sway Media Limited | Private company limited by shares | Live |
| Hk Sway Media Limited | | Live |
| Swift Media Asia Limited | | Live |
| Pacific Swift Media Limited | | Live |
| SWIFT MEDIA SOLUTIONS LIMITED | Private company limited by shares | Live |
| Swirling Media Limited | Private company limited by shares | Live |
| SWITCH MEDIA ASIA LIMITED | Private company limited by shares | Dissolved |
| SWITCH MEDIA CORPORATION LIMITED | Private company limited by shares | Live |
| SWMC Media Limited | Private company limited by shares | Live |
| Swordfish Media Limited | | Live |
| SYLVIA CULTURAL MEDIA CO., LIMITED | Private company limited by shares | Live |
| SYMBOL MEDIA CO., LIMITED | Private company limited by shares | Dissolved |
| SYMBOL MEDIA (HK) LIMITED | Private company limited by shares | Live |
| Ticker Symbol Media Limited | Private company limited by shares | Live |
| SYME MEDIA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Symphony Media HK Limited | Private company limited by shares | Live |
| SYNC UP MEDIA LIMITED | Private company limited by shares | Dissolved |
| IN SYNC MEDIA LIMITED | Private company limited by shares | Dissolved |
| MEDIA SYNDICATION LIMITED | Private company limited by shares | Dissolved |
| SynergyOne Media Limited | Private company limited by shares | Live |
| SYSPOWER MEDIA LIMITED | Private company limited by shares | Live |
| SYSTEM MEDIA LIMITED | Private company limited by shares | Dissolved |
| JET MEDIA SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |