| Blue Lagoon Marketing Limited | Private company limited by shares | Live |
| BLUE LION MARKETING LIMITED | Private company limited by shares | Dissolved |
| Blue Mammoth Digital Marketing Co., Limited | | Live |
| BLUE CRAB MARKETING & MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN MARKETING LIMITED | Private company limited by shares | Live |
| Blue Ocean Marketing & PR Limited | Private company limited by shares | Live |
| Shenzhen Blue Orient Marketing Company Limited | Private company limited by shares | Live |
| Blue Research Marketing Limited | Private company limited by shares | Live |
| BLUE MARKS LIMITED | Private company limited by shares | Live |
| Blue Marlin Limited | Private company limited by shares | Live |
| BLUE MARRY INVESTMENTS LIMITED | Private company limited by shares | Live |
| MASTER BLUE LIMITED | Private company limited by shares | Live |
| BLUE SKY NEW MATERIAL LIMITED | Private company limited by shares | Live |
| Blue Matter Biotechnology Company Limited | Private company limited by shares | Live |
| BLUE MEADOW LIMITED | Private company limited by shares | Live |
| Out of the Blue Media Limited | Private company limited by shares | Live |
| BLUE SKY MEDIA LIMITED | Private company limited by shares | Live |
| Blue Media Limited | Private company limited by shares | Live |
| Blue Ocean Advertising Media HK Limited | Private company limited by shares | Live |
| All Blue Chips Media Limited | | Live |
| Deep Blue Business Media Co., Limited | | Live |
| Blue Glow Media Co., Limited | Private company limited by shares | Live |
| Blue Ocean Media HK Co., Limited | Private company limited by shares | Live |
| BLUE DRAGON BB MEDIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Blue Goat Media Limited | Private company limited by shares | Live |
| BLUE MEDIA GROUP LIMITED | Private company limited by shares | Live |
| BLUE MEDIA HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| RED & BLUE (HONG KONG) MEDIA LIMITED | Private company limited by shares | Dissolved |
| Blue Horizon Media Limited | | Live |
| BLUE NILE MEDIA LIMITED | Private company limited by shares | Live |
| Ocean Blue Media Limited | Private company limited by shares | Live |
| Blue Ocean Media Company Limited | Private company limited by shares | Live |
| Blue Shark Media Limited | | Live |
| BLUE MEDIA INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Blue Whale Media HK Limited | | Live |
| BLUE MEDICAL LIMITED | Private company limited by shares | Live |
| Blue Ocean Medical Group Limited | Private company limited by shares | Live |
| BLUE IDEA MEDICAL LIMITED | Private company limited by shares | Live |
| BLUE MEDICAL INNOVATION LIMITED | Private company limited by shares | Live |
| OCEAN BLUE MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| Blue River Medical Limited | Private company limited by shares | Live |
| MEGA BLUE INC LIMITED | Private company limited by shares | Live |
| MEGA BLUE LIMITED | Private company limited by shares | Live |
| MELODY BLUE LIMITED | Private company limited by shares | Dissolved |
| BLUE MELODY CO., LIMITED | Private company limited by shares | Live |
| BLUE MELON LIMITED | Private company limited by shares | Live |
| HYDRO BLUE MEMBRANE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| BLUE OCEAN MERCHANT MARINE LIMITED | Private company limited by shares | Live |
| Blue Mercury Hong Kong Limited | Private company limited by shares | Live |
| Blue Mercury Solutions Hong Kong Limited | Private company limited by shares | Dissolved |
| Blue Mercury Milan Limited | Private company limited by shares | Live |
| BLUE MERCURY TECHNOLOGY (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| BLUE MESA HONG KONG LIMITED | Private company limited by shares | Live |
| BLUE OCEAN PRECIOUS METAL INVESTMENT SERVICES (ASIA) LIMITED | Private company limited by shares | Live |
| BLUE METEOR Limited | Private company limited by shares | Live |
| BLUE NEW METHOD LIMITED | Private company limited by shares | Live |
| MEXICAN BLUE COMPANY LIMITED | Private company limited by shares | Live |
| BLUE MOON (CHINA) FIREWORKS MFG. LIMITED | Private company limited by shares | Dissolved |
| BLUE MOON (CHINA) FIREWORKS MFG. LIMITED | Private company limited by shares | Live |
| BLUE MICRO LIMITED | Private company limited by shares | Dissolved |
| MICRO BLUE LIMITED | Private company limited by shares | Live |
| MICRO BLUE TECHNOLOGY SHARES CO., LIMITED | Private company limited by shares | Live |
| MICRO BLUE ELECTRONIC&TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FRANCE MILAN BLUE & WHITE COSTUMES LIMITED | Private company limited by shares | Live |
| MILLION BLUE LIMITED | Private company limited by shares | Live |
| MILLION BLUE LIMITED | | Live |
| Basic Blue Minerals Limited | | Live |
| GLOBAL MINI BLUE GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Blue Mirror Limited | | Live |
| Mirs Blue Limited | | Live |
| Blue Mission Limited | Private company limited by shares | Live |
| BLUE MOBILE (HK) LIMITED | Private company limited by shares | Live |
| BLUE SAPPHIRE MOBILE LIMITED | Private company limited by shares | Live |
| MODERN BLUE INC. LIMITED | Private company limited by shares | Live |
| Blue Mojito Limited | Private company limited by shares | Live |
| BLUE SKY MOLD LIMITED | Private company limited by shares | Live |
| Blue Momentum Limited | Private company limited by shares | Live |
| BLUE MOMENTUM LIMITED | | Live |
| BLUE MONG GROUP LIMITED | Private company limited by shares | Live |
| Blue Monkey Limited | Private company limited by shares | Dissolved |
| BLUE MONKEY ESCAPES LIMITED | Private company limited by shares | Live |
| BLUE MONKEY TOYS LIMITED | Private company limited by shares | Live Commenced dormancy on 07-Jul-2015 |
| Mono Blue Limited | Private company limited by shares | Live |
| BLUE MONSTERS LIMITED | Private company limited by shares | Live |
| MONT BLUE CO., LIMITED | Private company limited by shares | Dissolved |
| Blue In My Mood Limited | | Live |
| BLUE MOON COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE MOON LIMITED | Private company limited by shares | Live |
| Blue Moon F&B Limited | Private company limited by shares | Live |
| BLUE MOONLIGHT INVESTMENTS LIMITED | Private company limited by shares | Live |
| Blue motion Limited | Private company limited by shares | Live |
| Blue Motion Science Limited | Private company limited by shares | Live |
| Blue Lagoon Motor Limited | Private company limited by shares | Dissolved |
| Blue Sky Motors Limited | Private company limited by shares | Live |
| BLUE OCEAN MOTORSHIP LIMITED | Private company limited by shares | Live |
| BLUE SKY MOULD & PLASTIC CO., LIMITED | Private company limited by shares | Live |
| Blue Cloud Mould Technology Limited | Private company limited by shares | Live |
| Blue Cloud Mould Technology Limited | | Live |
| Blue Mount Limited | Private company limited by shares | Live |
| BLUE MOUNTAIN LIMITED | Private company limited by shares | Dissolved |