| BALL MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Baller media Limited | Private company limited by shares | Live |
| BALLYCASTLE MEDIA LIMITED | Private company limited by shares | Live |
| BAMBOO MEDIA LIMITED | Private company limited by shares | Dissolved |
| Bamboom Digital Media Limited | Private company limited by shares | Live |
| Banana Media Limited | Private company limited by shares | Live |
| RAIN MEDIA BANC (HK) LIMITED | Private company limited by shares | Live |
| MEDIA BANKER (H.K.) LIMITED | Private company limited by shares | Live |
| BANYAN MEDIA LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Apr-2014 |
| China Baoli Media Limited | | Live |
| BARON MEDIA LIMITED | Private company limited by shares | Live |
| MEDIA BASE LIMITED | Private company limited by shares | Live |
| Glimmer Base Media Company Limited | Private company limited by shares | Live |
| BASE MEDIA TECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| BATI MEDIA LIMITED | | Live |
| BAUHINIA MEDIA LIMITED | Private company limited by shares | Dissolved |
| BAUHINIA BOOKS, ART & MEDIA LIMITED | Private company limited by shares | Dissolved |
| Bauhinia Financial Media (HK) Group Limited | Private company limited by shares | Live |
| BBeborn Media Workshop Limited | Private company limited by shares | Live |
| BBRD MEDIA COMMUNICATION LIMITED | Private company limited by shares | Dissolved |
| BCHK Media Group Limited | Private company limited by shares | Live |
| B-Concept Media Events Group Limited | | Live |
| HOT BEAR BEAR MEDIA MINISTRY LIMITED | Company limited by guarantee | Live |
| Beauty Media Limited | Private company limited by shares | Live |
| New Media Beauty (HK) Limited | Private company limited by shares | Dissolved |
| BEBI MEDIA LIMITED | Private company limited by shares | Live |
| Beda Media Company Limited | Private company limited by shares | Live |
| BEDO BEDO CREATIVE MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| BeeFA Media Limited | Private company limited by shares | Live |
| Beezknees Media Limited | | Live |
| BEFAST MEDIA LIMITED | Private company limited by shares | Live |
| BEHEMOTH MEDIA LIMITED | Private company limited by shares | Dissolved |
| Belinter MEDIA LIMITED | Private company limited by shares | Live |
| BELL MEDIA LIMITED | Private company limited by shares | Live |
| Bello Media Group Limited | Private company limited by shares | Live |
| Beluga Media Limited | | Live |
| Bendan Media Limited | Private company limited by shares | Dissolved |
| Benkei Media Limited | Private company limited by shares | Live |
| Benley Media (HK) Limited | Private company limited by shares | Live |
| Bense Network Media Co., Limited | Private company limited by shares | Live |
| BERGS MEDIA AS LIMITED | Private company limited by shares | Dissolved |
| BERICH MEDIA LIMITED | Private company limited by shares | Dissolved |
| BEST MEDIA LIMITED | Private company limited by shares | Live |
| Best Joy Media Limited | Private company limited by shares | Live |
| HK BEST MEDIA COMMUNICATION LIMITED | Private company limited by shares | Live |
| BEST MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Best Media Strategy Limited | Private company limited by shares | Live |
| BESTSHARE INTERNET MEDIA LIMITED | Private company limited by shares | Live |
| BESTSHARE INTERNET MEDIA LIMITED | | Live |
| BEST-VIEW MEDIA LIMITED | Private company limited by shares | Live |
| BEYOND MEDIA LIMITED | | Live |
| BEYOND MEDIA ASIA LIMITED | Private company limited by shares | Live |
| BEYOND MEDIA GROUP (HK) LIMITED | Private company limited by shares | Live |
| BHUTIK MEDIA LIMITED | Private company limited by shares | Live |
| BIDEA MEDIA LIMITED | Private company limited by shares | Dissolved |
| 8 & BIEN MEDIA LIMITED | Private company limited by shares | Dissolved |
| BIGGESTY MEDIA LIMITED | Private company limited by shares | Live |
| Bigwave Media Limited | Private company limited by shares | Live |
| BillionReads Media Technology Limited | | Live |
| BILLIONS MEDIA LIMITED | Private company limited by shares | Live |
| BINCI MEDIA PTY LIMITED | | Live |
| Bintang Media Limited | Private company limited by shares | Live |
| Big Bird Media Limited | Private company limited by shares | Live |
| DUO BIRD MEDIA LIMITED | Private company limited by shares | Live |
| BIRKENFIELD MEDIA MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| BIT-TECH DIGITAL MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLACK MEDIA LIMITED | Private company limited by shares | Dissolved |
| Black Digital Media Limited | Private company limited by shares | Live |
| Black Media Group Limited | Private company limited by shares | Live |
| Black Nova Media Limited | Private company limited by shares | Live |
| BLACK WIND MEDIA LIMITED | Private company limited by shares | Live |
| BLACKANT PUBLISHING MEDIA GROUP LIMITED | Private company limited by shares | Dissolved |
| Blackburn Media Limited | Private company limited by shares | Live |
| BLACKHAWK MEDIA LIMITED | Private company limited by shares | Dissolved |
| BLADEDGE ASIA MEDIA CO., LIMITED | Private company limited by shares | Live |
| BLANK MEDIA LIMITED | Private company limited by shares | Live |
| Blessed Media Limited | Private company limited by shares | Live |
| BLESSU MEDIA LIMITED | | Live |
| BLINK MEDIA LIMITED | Private company limited by shares | Live |
| 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 |