| MAXSO MEDIA LIMITED | Private company limited by shares | Dissolved |
| MAXX MEDIA LIMITED | Private company limited by shares | Live |
| CHINA MAYAN INT'L CULTURE MEDIA HOLDING LIMITED | Private company limited by shares | Live |
| MAYER MEDIA LIMITED | Private company limited by shares | Live |
| Mayfair Media Limited | Private company limited by shares | Live |
| Mayi Publication Media Limited | Private company limited by shares | Live |
| Mayways Media Group Limited | Private company limited by shares | Live |
| McMillan Media Group Limited | Private company limited by shares | Live |
| Media Measures Limited | Private company limited by shares | Live |
| MEDIC MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| China Medical Media Group Limited | Private company limited by shares | Live |
| Medical Connection Media Limited | | Live |
| MEDICAL EDUCATION MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Asia Pacific Medical Media Company Limited | Private company limited by shares | Live |
| MEDICAL RESEARCH & MEDIA LIMITED | Private company limited by shares | Dissolved |
| Meetaps Media (Hongkong) Co., Limited | Private company limited by shares | Live |
| MEGA AD MEDIA LIMITED | Private company limited by shares | Live |
| YF Mega Media (HK) Limited | Private company limited by shares | Live |
| Laservision Mega - Media Limited | Private company limited by shares | Live |
| Megapath Media Limited | Private company limited by shares | Live |
| MEGATEAM MEDIA LIMITED | Private company limited by shares | Dissolved |
| MEGATEAM MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MEIBURG WINE MEDIA LIMITED | Private company limited by shares | Live |
| HK MEILIANMEISHENG CULTURAL MEDIA CO., LIMITED | Private company limited by shares | Live |
| MEIYU MEDIA GROUP (H.K) LIMITED | Private company limited by shares | Live |
| Greater Mekong Media (HK) Limited | Private company limited by shares | Live Commenced dormancy on 21-Jun-2016 |
| Mekong-Fi Media Limited | Private company limited by shares | Live |
| Melody Media Limited | Private company limited by shares | Live |
| Melted Media Marketing Limited | Private company limited by shares | Live |
| Mema Media Limited | Private company limited by shares | Live |
| MENDOVISION MEDIA LIMITED | Private company limited by shares | Live |
| MENG HEI LOK MEDIA COMPANY LIMITED | | Live |
| MENG GU MEDIA CO., LIMITED | Private company limited by shares | Live |
| MENGJIA MEDIA (HK) LIMITED | Private company limited by shares | Live |
| MENGQI MEDIA (HK) LIMITED | Private company limited by shares | Live |
| MENIC MEDIA LIMITED | Private company limited by shares | Dissolved |
| Meraki Media Limited | | Live |
| CHINA MESA MEDIA INVESTMENT STOCK LIMITED | Private company limited by shares | Live |
| Mesh Media Limited | Private company limited by shares | Live |
| META MEDIA LIMITED | Private company limited by shares | Dissolved |
| META MEDIA LIMITED | Private company limited by shares | Live |
| Meta Media Growth Limited | | Live |
| META-COM Media Limited | Private company limited by shares | Live |
| Metafairy Media Limited | | Live |
| METAMORPHS MEDIA LIMITED | | Live |
| MEDIA METIS LIMITED | Private company limited by shares | Live |
| MEDIA METRICA (EAST) LIMITED | Private company limited by shares | Dissolved |
| PHOENIX METROPOLIS MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| XinHua Metropolis Media Limited | Private company limited by shares | Live |
| Metropolitan Media Limited | Private company limited by shares | Live |
| Metstar Media Solutions Limited | Private company limited by shares | Live |
| MEWS MEDIA LIMITED | Private company limited by shares | Dissolved |
| MG-MAINSTREAM MEDIA GROUP LIMITED | Private company limited by shares | Live |
| Mgtv.com (Hong Kong) Media Company Limited | Private company limited by shares | Live |
| QUAN MIAO (MEDIA) LIMITED | Private company limited by shares | Live |
| Microworld Media Company Limited | Private company limited by shares | Live |
| MIKOLWAVE Media Limited | Private company limited by shares | Live |
| ROYAL MILAN TV AND FILM MEDIA LIMITED | Private company limited by shares | Live |
| Miles Media Limited | Private company limited by shares | Live |
| AJ MILES MEDIA & PRODUCTION LIMITED | Private company limited by shares | Live |
| MILKY WAY MEDIA LIMITED | Private company limited by shares | Dissolved |
| MILLE MEDIA LIMITED | Private company limited by shares | Live |
| Millennium Media Limited | Private company limited by shares | Live |
| MIND MEDIA LIMITED | Private company limited by shares | Dissolved |
| Mind Ads Media Limited | Private company limited by shares | Live |
| MIND MAP MEDIA LIMITED | Private company limited by shares | Live |
| MindFusion Digital Media Limited | Private company limited by shares | Live |
| MINDPRO MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ming Pao New Media Limited | Private company limited by shares | Live |
| MING KEI MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| MINT Media Group Limited | Private company limited by shares | Live |
| MIQI Media Limited | Private company limited by shares | Live |
| Mira Media Limited | | Live |
| MIRACLE MEDIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Miras Media Limited | Private company limited by shares | Live |
| MIRROR MEDIA LIMITED | Private company limited by shares | Dissolved |
| MISSION MEDIA LIMITED | Private company limited by shares | Dissolved |
| MIYUE MEDIA CO., LIMITED | | Live |
| Media Mlife International Co., Limited | Private company limited by shares | Live |
| MNET MEDIA LIMITED | Private company limited by shares | Live |
| Mobbiddom Media Limited | | Live |
| MobiCom Media Limited | Private company limited by shares | Live |
| Mobotto Media Limited | Private company limited by shares | Live |
| LEGEND MODEL MEDIA INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| Model Music Media Consultants Limited | Private company limited by shares | Dissolved |
| HK MODELPLUS MEDIA LIMITED | Private company limited by shares | Live |
| MODERN MEDIA LIMITED | Private company limited by shares | Dissolved |
| MODERN MEDIA COMPANY LIMITED | Private company limited by shares | Live |
| MODERN MEDIA (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CHINA MODERN MEDIA CO., LIMITED | Private company limited by shares | Live |
| CHINA MODERN MEDIA GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| MODERN EDUCATION DIGITAL MEDIA LIMITED | Private company limited by shares | Live |
| MODERN MEDIA SPECIAL EDUCATION FUND LIMITED | Company limited by guarantee | Live |
| B&M MODERN MEDIA (HK) LIMITED | Private company limited by shares | Dissolved |
| ITALY MODERN & MEDIA INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| Modern Media Network Limited | | Live |
| MODERN CITIZEN MEDIA SERVICE LIMITED | Private company limited by shares | Dissolved |
| Modest Media Limited | Private company limited by shares | Dissolved |
| MODIN MEDIA LIMITED | Private company limited by shares | Live |
| MOGO MEDIA LIMITED | Private company limited by shares | Live |