| Blis Media (HK) Limited | Private company limited by shares | Live |
| NORBU BLISS MEDIA CO., LIMITED | Private company limited by shares | Live |
| Blizzard Media Pte Limited | Private company limited by shares | Live |
| BLNK MEDIA LIMITED | Private company limited by shares | Live |
| Blockculture Media Company Limited | Private company limited by shares | Live |
| Blocknews Media Limited | | Live |
| BLOCKTREND MEDIA LIMITED | Private company limited by shares | Live |
| BLOGOSPHERE MEDIA LIMITED | Private company limited by shares | Dissolved |
| BLONDE MEDIA (HONG KONG) LIMITED | Private company limited by shares | Live |
| BLOOM MEDIA LIMITED | Private company limited by shares | Dissolved |
| Bloom Media Limited | | Live |
| Bloom Media & Events Limited | | Live |
| Bloom Media (HK) Limited | Private company limited by shares | Live |
| Bluemarketer Media Limited | Private company limited by shares | Live |
| BLUISH MEDIA Limited | Private company limited by shares | Live |
| Bocom Media Limited | | Live |
| Bodega Media HK Limited | Private company limited by shares | Live |
| BOHDEE MEDIA LIMITED | Private company limited by shares | Live |
| Bokeh Media Limited | Private company limited by shares | Live |
| BONA MEDIA GROUP CO., LIMITED | Private company limited by shares | Live |
| MEDIA BOND LIMITED | Private company limited by shares | Dissolved |
| Bonfire Media Limited | Private company limited by shares | Live |
| BONHAM MEDIA LIMITED | Private company limited by shares | Dissolved |
| BONHAM MEDIA & PR LIMITED | Private company limited by shares | Live |
| BOOM MEDIA LIMITED | Private company limited by shares | Live |
| Boomy Media Company Limited | | Live |
| Boopis Media Limited | Private company limited by shares | Live |
| Boost Media Limited | Private company limited by shares | Live |
| Boosta Media Limited | | Live |
| BOPAI MEDIA (CHINA) LIMITED | Private company limited by shares | Live |
| X Border Media Limited | Private company limited by shares | Live |
| BORDERLESS MEDIA LIMITED | Private company limited by shares | Live |
| Bork Media Limited | Private company limited by shares | Live |
| BORN TO ENTERTAIN (HK) FILM AND MEDIA LIMITED | Private company limited by shares | Live |
| BORUS MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Borvichka Media, Limited | Private company limited by shares | Live |
| BOSHAN MEDIA LIMITED | Private company limited by shares | Dissolved |
| BOSHENG MEDIA INSTITUTIONS LIMITED | Private company limited by shares | Live |
| BOSON Media & Communication Company Limited | Private company limited by shares | Live |
| Boss Media Limited | Private company limited by shares | Live |
| BOTTOMUP MEDIA LIMITED | Private company limited by shares | Live |
| BOUNDLESS CULTURAL & MEDIA LIMITED | Private company limited by shares | Live |
| BOXTALK MEDIA LIMITED | Private company limited by shares | Live |
| Boya Media Limited | | Live |
| ZHISHENG BOYA ADVERTISEMENT MEDIA CO., LIMITED | Private company limited by shares | Live |
| BRAINSTORM MEDIA LIMITED | Private company limited by shares | Live |
| BRAMBERG MEDIA LIMITED | Private company limited by shares | Live |
| Brand Asia Media Limited | Private company limited by shares | Live |
| CHINA BRAND MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| LEAER BRAND MEDIA CO., LIMITED | Private company limited by shares | Live |
| BRAND MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Brand Media Group (China) Company Limited | Private company limited by shares | Live |
| QIANJIAN BRAND MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| BRAND UNIVERSAL CONTEXT MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Brand New Media Interactive Limited | Private company limited by shares | Live |
| BRAND TALK MEDIA & PRODUCTIONS LIMITED | Private company limited by shares | Live |
| Brand Media Studio Limited | Private company limited by shares | Live |
| YI YING GROUP BRANDING CULTURE MEDIA LIMITED | Private company limited by shares | Live |
| Bread Media Limited | Private company limited by shares | Live |
| Breeze Media Limited | | Live |
| BRGR MEDIA LIMITED | Private company limited by shares | Live |
| CHINA BRICS DIGITAL MEDIA GROUP COMPANY LIMITED | | Live |
| MEDIA BRIGHT LIMITED | Private company limited by shares | Live |
| BRIGHT MEDIA LIMITED | Private company limited by shares | Dissolved |
| BRIGHT MEDIA LIMITED | Private company limited by shares | Dissolved |
| BRIGHT MEDIA LIMITED | Private company limited by shares | Live |
| BRIGHT MEDIA (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Bright Future Media Investment Limited | Private company limited by shares | Live |
| GUANGZHOU BRIGHT WINDOW MEDIA CO., LIMITED | Private company limited by shares | Dissolved |
| BRIGHT MINDS MEDIA HK LIMITED | | Live |
| BRIGHT MEDIA (ASIA PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| Bright Glory Sail Media Limited | | Live |
| Brighten Media Limited | Private company limited by shares | Live |
| Brighthouse Media Limited | Private company limited by shares | Live |
| Brightsky Media Investment Limited | Private company limited by shares | Live |
| Brilliance Media Limited | | Live |
| BRITAIN KINGKING BRAND MEDIA LIMITED | Private company limited by shares | Live |
| Huayi broadcaster Media Co., Limited | Private company limited by shares | Live |
| FTC MEDIA BROADCASTING LIMITED | Private company limited by shares | Live |
| Chinese Integrated Media Broadcasting Limited | Private company limited by shares | Live |
| NEW MEDIA NETWORK BROADCASTING LIMITED | Private company limited by shares | Dissolved |
| MEGA MEDIA BROADCASTING NETWORK LIMITED | Private company limited by shares | Dissolved |
| SOCIAL MEDIA BROADCASTS (SMB) LIMITED | Private company limited by shares | Live |
| BROADREACH MEDIA HK LIMITED | Private company limited by shares | Dissolved |
| Broadwood Cultural Media Limited | Private company limited by shares | Live |
| MARKET BROKERS MEDIA LIMITED | Private company limited by shares | Live |
| M Bros. Media Co. Limited | Private company limited by shares | Live |
| J Bros Media Corporation Limited | Private company limited by shares | Live |
| BUBBLE MEDIA ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| Bubble Network Media Co., Limited | | Live |
| Bubbleair Media Limited | Private company limited by shares | Live |
| Budda Media Fund Limited | | Live |
| CHINA BUDDHISM NET MEDIA CO., LIMITED | Private company limited by shares | Live |
| Buffay Media Limited | | Live |
| MEDIA BUILDER LIMITED | Private company limited by shares | Live |
| BULLISH TIMES MEDIA LIMITED | Private company limited by shares | Live |
| LID Business Media Limited | Private company limited by shares | Live |
| Business Media Limited | Private company limited by shares | Live |
| HK New Media Business Academy Limited | | Live |
| Cross-Strait Business Media Limited | Private company limited by shares | Dissolved |