| Blue Ocean Computing Limited | Private company limited by shares | Live |
| BIG BLUE CONCEPT LIMITED | Private company limited by shares | Dissolved |
| Blue Concept Limited | Private company limited by shares | Live |
| SKY BLUE CONCEPT LIMITED | Private company limited by shares | Live |
| Blue Concept Asia Limited | Private company limited by shares | Live |
| Blue Concept Group Limited | Private company limited by shares | Live |
| BLUE MOON CONCEPT LIMITED | Private company limited by shares | Live |
| Blue Connect HK Limited | Private company limited by shares | Live |
| Carpenter Blue Construction Limited | | Live |
| BLUE DIAMOND CONSTRUCTION (HONG KONG) CO. LIMITED | Private company limited by shares | Live |
| Blue East Construction Limited | | Live |
| Blue Ocean Construction Supply Limited | Private company limited by shares | Live |
| Blue Web Consult Limited | Private company limited by shares | Live |
| Blue Ocean Consultancy Limited | Private company limited by shares | Live |
| BLUE SKY CONSULTANT LIMITED | | Live |
| BLUE SEA CONSULTANT LIMITED | | Live |
| HONG KONG BLUE RED CONSULTANT LIMITED | Private company limited by shares | Live |
| BLUE SKY INVESTMENT MANAGEMENT & CONSULTANT (CHINA) LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN CONSULTANT LIMITED | Private company limited by shares | Live |
| TINY BLUE CONSULTANT LIMITED | Private company limited by shares | Live |
| BLUE DRAGON CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Sky Blue Construction Engineering & Technology Consultants Limited | Private company limited by shares | Live |
| Blue Jade Consultants Asia Limited | | Live |
| BLUE SKY MANAGEMENT & CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Blue Wave Consultants Limited | Private company limited by shares | Live |
| BLUE WHALE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Sky Blue Consultation Limited | Private company limited by shares | Live |
| Blue Cloud Investment & Consultation Co. Limited | | Live |
| BLUE SKY CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Blue Consulting Limited | Private company limited by shares | Dissolved |
| Blue Sun Consulting Limited | Private company limited by shares | Live |
| BLUE GUM CONSULTING LIMITED | Private company limited by shares | Live |
| SKY BLUE CONSULTING LIMITED | Private company limited by shares | Live |
| BLUE OCEAN BUSINESS CONSULTING LIMITED | Private company limited by shares | Live |
| Blue Sky Consulting Co., Limited | Private company limited by shares | Dissolved |
| Deep Blue (HongKong) International Consulting Co., Limited | Private company limited by shares | Live |
| BLUE VISION CONSULTING CO., LIMITED | Private company limited by shares | Live |
| Blue Coast Consulting Limited | Private company limited by shares | Live |
| Deep Blue Consulting Limited | Private company limited by shares | Live |
| Blue Diamond Holding & Consulting Limited | Private company limited by shares | Live |
| BLUE HORIZON CONSULTING LIMITED | | Live |
| Blue Harbour Insurance Consulting Limited | | Live |
| BLUE LAGOON CONSULTING LIMITED | Private company limited by shares | Live |
| Blue Sea (HK) Investment Management Consulting Co., Limited | Private company limited by shares | Live |
| DEEP BLUE MARITIME CONSULTING LIMITED | Private company limited by shares | Live |
| MINT BLUE CONSULTING LIMITED | | Live |
| BLUE OCEAN CONSULTING LIMITED | Private company limited by shares | Dissolved |
| BLUE OCEAN CONSULTING LIMITED | Private company limited by shares | Live |
| ORIENTAL BLUE CONSULTING LIMITED | Private company limited by shares | Live |
| Blue Ridge Consulting Limited | Private company limited by shares | Live |
| Blue Tech Consulting Limited | Private company limited by shares | Dissolved |
| Blue Skies Consulting & Trading Limited | Private company limited by shares | Live |
| TRUE BLUE CONSULTING LIMITED | Private company limited by shares | Live |
| BLUE OCEAN WINE CONSULTING LIMITED | Private company limited by shares | Live |
| BLUE CONE CONTRACTING LIMITED | Private company limited by shares | Dissolved |
| Blue Ocean Design & Contracting (Asia) Limited | Private company limited by shares | Live |
| SHENYANG BLUE SILVER AUTOMATIC CONTROL COMPANY LIMITED | Private company limited by shares | Dissolved |
| BLUE CORAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| FRANCE CORDON BLUE MARDELL GRAPE WINE (HK) LIMITED | Private company limited by shares | Dissolved |
| FRANCE CORDON BLUE MARTELL INT'L GROUP HOLDING (HK) LIMITED | Private company limited by shares | Dissolved |
| Blue Core Company Limited | Private company limited by shares | Live |
| Core Blue Ocean Investment Co. (Hong Kong) Limited | Private company limited by shares | Live |
| HK Blue Core Technology Co., Limited | Private company limited by shares | Live |
| Sea Blue Core Technology (Hongkong) Co., Limited | Private company limited by shares | Live |
| Blue Core Technology International Co., Limited | Private company limited by shares | Live |
| Blue Core Information Technology (HK) Limited | | Live |
| BLUE CORIANDER LIMITED | Private company limited by shares | Dissolved |
| BLUE CORNER LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Jan-1996 |
| BLUE CORNER DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| BLUE CORNER JAPAN (HK) CO. LIMITED | Private company limited by shares | Live |
| Blue Corner Hong Kong Limited | Private company limited by shares | Live |
| Blue Corp Limited | Private company limited by shares | Live |
| RISING BLUE CORP. LIMITED | Private company limited by shares | Live |
| Blue Trading Corp. Limited | Private company limited by shares | Live |
| Blue Corporate Company Limited | Private company limited by shares | Live |
| Blue Sky Corporate Limited | Private company limited by shares | Live |
| BLUE OCEAN CORPORATE LIMITED | Private company limited by shares | Live |
| BLUE SEA CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BLUE SKY CORPORATION LIMITED | Private company limited by shares | Dissolved |
| ALL BLUE CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE TOP CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BLUE SKY CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE CORPORATION LIMITED -THE- | Private company limited by shares | Live |
| BLUE ANGEL CORPORATION LIMITED | Private company limited by shares | Live |
| ASIA BLUE CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE ATLANTIC CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE BIRD CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE COW CHINA CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE COAST CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BLUE DESIGN CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE DIAMOND CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BLUE DIAMOND CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE DRAGON CORPORATION LIMITED | Private company limited by shares | Dissolved |
| HONG KONG BLUE COMPUTING CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Blue Sea (Hong Kong) Corporation Limited | Private company limited by shares | Live |
| BLUE FOREST INDUSTRY CORPORATION LIMITED | Private company limited by shares | Live |
| Blue Kettle Corporation Limited | Private company limited by shares | Dissolved |
| BLUE LAGOON CORPORATION LIMITED | Private company limited by shares | Dissolved |
| BLUE LAKE CORPORATION LIMITED | Private company limited by shares | Live |
| BLUE LINE HOLDING CORPORATION LIMITED | Private company limited by shares | Live |