| Hong Kong Blue Sky International Energy Development Limited | | Live |
| HONG KONG BLUE SEA MORALITY CULTURE DEVELOPMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG BLUE SKY INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Hong Kong Blue Light Agricultural Development Limited | Private company limited by shares | Live |
| Hong Kong Blue River Motors Trading Development Limited | Private company limited by shares | Live |
| HONG KONG BLUE OCEAN PRODUCTION DEVELOPMENT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE HORIZON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE SEA INDUSTRIAL DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| Blue Sky Zhongke Energy Industrial HK Development Co., Limited | Private company limited by shares | Live |
| BLUE OCEAN SUN INDUSTRIAL DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| BLUE FOREST INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CHINA BLUE SILICON VALLEY INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE INDUSTRY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Blue dream industry development co., Limited | Private company limited by shares | Dissolved |
| BLUE TRIUMPHANT INTERNATIONAL (HK) INDUSTRY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SKY BLUE DEVELOPMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BLUE OCEAN DEVELOPMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SKY BLUE INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE SKY INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE SAPPHIRE LAND INVESTMENT AND DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE MAGIC (INT'L) PHYSICAL CULTURE DEVELOPMENT CO., LIMITED | Private company limited by shares | Dissolved |
| HK MEDIUM BLUE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE MILL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE MOON DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| BLUE OCEAN DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| BLUE PANDA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE PLAN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE SKY PROPERTY DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| Blue Sea Property Development Limited | | Live |
| RISING BLUE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE RIVER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SAPPHIRE BLUE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG BLUE SHELL BAGS DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| BLUE SHIELD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CHINA BLUE SILICON VALLEY INVESTMENT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE SKIES DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE STAR DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE STAR ENTERPRISE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Blue Star Development (HK) Limited | Private company limited by shares | Live |
| HONGKONG BLUE LIGH STAR EDUCATION DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE STAR PROPERTIES DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Blue Stone Capital Development Limited | Private company limited by shares | Live |
| BLUE OCEAN DEVELOPMENT STRATEGY INSTITUTE LIMITED | Private company limited by shares | Live |
| BLUE EYE (SYSTEM & WEB DEVELOPMENT) LIMITED | Private company limited by shares | Live |
| BLUE SKY TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Blue Ocean Technology Development Co., Limited | Private company limited by shares | Dissolved |
| BLUE OCEAN TECHNOLOGY DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| DEEP BLUE TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE IRON TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE SEA TRADING DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| BLUE OCEAN TRADING DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BLUE VALLEY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Blue Wind Development Limited | Private company limited by shares | Live |
| BLUE DIAM COMPANY LIMITED | Private company limited by shares | Live |
| Ocean Blue Diam Limited | Private company limited by shares | Live |
| BLUE DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND BLUE COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND EXCAVATIONS ASIA LIMITED | Private company limited by shares | Live |
| FRANCE BLUE DIAMOND BEAUTY GARMENTS CO., LIMITED | Private company limited by shares | Live |
| Blue Diamond Freight Co., Limited | Private company limited by shares | Live |
| BLUE DIAMOND INTERNATIONAL TRADE (HK) CO., LIMITED | Private company limited by shares | Live |
| Blue Diamond Consultancy Limited | Private company limited by shares | Live |
| BLUE DANUBE DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| Blue Diamond Edge Limited | Private company limited by shares | Live |
| BLUE DIAMOND INTERNATIONAL ASSETS INVESTMENT GROUP Co., LIMITED | Private company limited by shares | Dissolved |
| GERMAN BLUE DIAMOND ADVANCED MATERIALS R&D GROUP HOLDINGS LIMITED | Private company limited by shares | Live |
| HONGKONG BLUE DIAMOND JEWELLERY (INTERNATIONAL) GROUP CO., LIMITED | Private company limited by shares | Live |
| BLUE DIAMOND HEALTH COMPANY LIMITED | | Live |
| BLUE DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND & JEWEL LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND LAMPS COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND SHIPPING MARITIME LIMITED | | Live |
| BLUE DIAMOND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Blue Diamond Trading Limited | Private company limited by shares | Dissolved |
| HONGKONG (HK VILLA MASTER) BLUE DIAMOND MANSION HIGH-END VILLA DESIGN AGENCY LIMITED | Private company limited by shares | Live |
| ASIA BLUE RIBBON DIET MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| Blue Digit Company Limited | Private company limited by shares | Live |
| Blue Sea Digital Limited | Private company limited by shares | Live |
| Blue Glow Digital Co., Limited | | Live |
| Blue Dragon Digital Group Limited | Private company limited by shares | Live |
| Blue Ocean Digital Limited | Private company limited by shares | Live |
| Blue Ocean Digital Limited | | Live |
| POINT BLUE DIGITAL LIMITED | Private company limited by shares | Dissolved |
| DISCOVER BLUE ASSOCIATION LIMITED | Company limited by guarantee | Live |
| BLUE BOX & RED BOX (DISTRIBUTORS) LIMITED | Private company limited by shares | Dissolved |
| Dive Blue Ocean Limited | Private company limited by shares | Live |
| Divine Blue Limited | | Live |
| BLUE POINT DIVING CENTRE LIMITED | Private company limited by shares | Live |
| Deep Blue Diving Products Co., Limited | Private company limited by shares | Live |
| Blue Horizon Diving Limited | | Live |
| BLUE LAGOON DIVING LIMITED | Private company limited by shares | Live |
| BLUE SAND DIVING LIMITED | Private company limited by shares | Live |
| BLUE POINT DIVING TRAINING CENTRE LIMITED | Private company limited by shares | Dissolved |
| BLUE DOLPHIN CO., LIMITED | Private company limited by shares | Live |
| BLUE DOLPHIN DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| BLUE DOLPHIN SHIPPING LIMITED | Private company limited by shares | Live |
| BLUE DOLPHIN TRADING COMPANY LIMITED | Private company limited by shares | Live |
| BLUE DOME LIMITED | Private company limited by shares | Live |
| BLUE ANGEL PART-TIME DOMESTIC HELP LIMITED | Private company limited by shares | Dissolved |
| Blue Dots Limited | | Live |