| BLUE BIRD CATERING MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| OCEAN BLUE CATERING MANAGEMENT LIMITED | Private company limited by shares | Live |
| BLUE CLOUD MANAGEMENT LIMITED | Private company limited by shares | Live |
| BLUE OCEAN RIDERS CLUB INTERNATIONAL TOURISM MANAGEMENT LIMITED | Private company limited by shares | Live |
| Blue Cross Wealth Management Family Office Co., Limited | Private company limited by shares | Live |
| BLUE CHIPS CAPITAL MANAGEMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| HONGKONG BLUE OCEAN INTERNATIONAL MEDICAL MANAGEMENT INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| BLUE BIRD INTERNATIONAL (HK) HOTEL MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| BLUE SEA (ASIA & PACIFIC) HOTEL MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| HK BLUE SKY INVESTMENT MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| Blue Coast Investment Management Co., Limited | | Live |
| SHENZHEN BLUE OCEAN INTERNATIONAL SHIP MANAGEMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| International Blue Sky Air Rescue Association Management Co., Limited | | Live |
| BLUE MOON CONSTRUCTION MANAGEMENT SERVICES LIMITED | Private company limited by shares | Dissolved |
| Blue Creek Asset Management Company Limited | Private company limited by shares | Live |
| Blue Creek Capital Management Limited | Private company limited by shares | Live |
| Deep Blue Management Limited | Company limited by guarantee | Live |
| BLUE DIAMOND MANAGEMENT CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND WEALTH MANAGEMENT LIMITED | Private company limited by shares | Live |
| Ocean Blue Economic Asset Management Company Limited | Private company limited by shares | Live |
| HK BENEVOLENTRELIEF GROUP BLUE SKY HOSPITAL INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| China Blue Dragonflies International Leisure Industry Investment Management Group Limited | Private company limited by shares | Live |
| INTERNATIONAL BLUE OCEAN FUSION (GROUP) ASSET MANAGEMENT LIMITED | Private company limited by shares | Live |
| China Blue Ocean Group Financial Supervision Management Limited | Private company limited by shares | Live |
| Angel Blue Health and Beauty Management Company Limited | Private company limited by shares | Live |
| Benno Blue International (HK) Asset Management Limited | Private company limited by shares | Live |
| BLUE OCEAN HOTEL MANAGEMENT CO. LIMITED | Private company limited by shares | Live |
| BLUE WINGS MEDICAL INVESTMENT AND MANAGEMENT INT'L LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN MANAGEMENT LIMITED | Private company limited by shares | Live |
| BLUE OCEAN ASIA PACIFIC MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE PANDA MANAGEMENT LIMITED | Private company limited by shares | Live |
| Blue Sky Pest Management Limited | Private company limited by shares | Live |
| BLUE SKY HOTEL&TOURISM PLANNING MANAGEMENT LIMITED | Private company limited by shares | Live |
| Blue Isle Property Management Limited | Private company limited by shares | Live |
| BLUE RIVER MANAGEMENT LIMITED | Private company limited by shares | Live |
| MEET BLUE FRIENDS FOOD SERVICE MANAGEMENT (KOREA) LIMITED | Private company limited by shares | Live |
| BLUE STAR MANAGEMENT LIMITED | Private company limited by shares | Live |
| Blue Star Asset Management Limited | Private company limited by shares | Live |
| BLUE OCEAN SUPPLY CHAIN MANAGEMENT LIMITED | Private company limited by shares | Live |
| Ocean Blue Supply Chain Management Co. Limited | | Live |
| BLUE MANGO TV LIMITED | Private company limited by shares | Dissolved |
| BLUE MANGO TRADING LIMITED | Private company limited by shares | Dissolved |
| Blue Mansions Limited | | Live |
| BLUE STAR MANUFACTURE CO., LIMITED | Private company limited by shares | Live |
| BLUE RIBBON PLASTIC & METAL MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| BLUE ORCHID MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE PIGEON MANUFACTURING LIMITED | Private company limited by shares | Dissolved |
| MANY BLUE LIMITED | | Live |
| MANY BLUE NICKEL LIMITED | | Live |
| BLUE MARBLE LIMITED | Private company limited by shares | Live |
| BLUE MARBLE LIMITED | | Live |
| BLUE MARINE LIMITED | Private company limited by shares | Dissolved |
| Blue Sky Marine Limited | Private company limited by shares | Live |
| MARINE BLUE CATERING LIMITED | | Live |
| DEEP BLUE MARINE LIMITED | Private company limited by shares | Live |
| EVER BLUE MARINE SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| OCEAN BLUE MARINE COMPANY LIMITED | Private company limited by shares | Live |
| Blue Ocean Marine Company Limited | | Live |
| BLUE MARINES LIMITED | Private company limited by shares | Live |
| BLUE SEA MARITIME COMPANY LIMITED | Private company limited by shares | Dissolved |
| Asia Blue Maritime Limited | Private company limited by shares | Dissolved |
| BLUE COAST MARITIME LIMITED | Private company limited by shares | Live |
| BLUE OCEAN MARITIME LIMITED | Private company limited by shares | Dissolved |
| Blue Ocean Maritime Company Limited | Private company limited by shares | Live |
| Blue Market Limited | | Live |
| BLUE MARKETING LIMITED | Private company limited by shares | Live |
| BLUE SEA MARKETING LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN MARKETING DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Violet & Blue Digital Marketing and Services Company Limited | | Live |
| Blue Ocean Marketing Group Limited | Private company limited by shares | Live |
| Hong Kong Blue Sky Marketing Plan Limited | Private company limited by shares | Live |
| Blue Interactive Marketing Limited | Private company limited by shares | Live |
| KENTUCKY BLUE MARKETING LIMITED | Private company limited by shares | Dissolved |
| 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 |