| BUSY JOINER COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSY KIDS COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSY LAIRY LIMITED | Private company limited by shares | Dissolved |
| BUSY LAND LIMITED | Private company limited by shares | Dissolved |
| LEADER BUSY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| EASY BUSY LEARNING CENTRE LIMITED | Private company limited by shares | Dissolved |
| LINK BUSY LIMITED | Private company limited by shares | Dissolved |
| LONG BUSY LIMITED | Private company limited by shares | Live |
| BUSY MARK LIMITED | Private company limited by shares | Live |
| BUSY MATE LIMITED | Private company limited by shares | Dissolved |
| BUSY MIND LIMITED | Private company limited by shares | Dissolved |
| BUSY ORDER LIMITED | Private company limited by shares | Dissolved |
| BUSY PALACE LIMITED | Private company limited by shares | Dissolved |
| BUSY PEACE MARITIME LIMITED | Private company limited by shares | Dissolved |
| BUSY PEACE SHIPPING AGENCIES LIMITED | Private company limited by shares | Dissolved |
| BUSY PLAN LIMITED | Private company limited by shares | Live |
| BUSY PORT LIMITED | Private company limited by shares | Dissolved |
| BUSY PORT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BUSY POWER LIMITED | Private company limited by shares | Live |
| BUSY YEAR PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| QUEEN BUSY LIMITED | Private company limited by shares | Dissolved |
| BUSY RICH LIMITED | Private company limited by shares | Live |
| BUSY SECRETARIAL LIMITED | Private company limited by shares | Dissolved |
| BUSY SERVICE LIMITED | Private company limited by shares | Live |
| SHEEN BUSY LIMITED | Private company limited by shares | Dissolved |
| SHEEN BUSY LIMITED | Private company limited by shares | Live |
| BUSY SPOT LIMITED | Private company limited by shares | Dissolved |
| BUSY STAR LIMITED | Private company limited by shares | Dissolved |
| BUSY STAR LIMITED | Private company limited by shares | Dissolved |
| BUSY STREET LIMITED | Private company limited by shares | Dissolved |
| SUNNY BUSY LIMITED | Private company limited by shares | Live |
| SUPER BUSY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BUSY TARGET LIMITED | Private company limited by shares | Dissolved |
| BUSY TEAM LIMITED | Private company limited by shares | Dissolved |
| TECH BUSY LIMITED | Private company limited by shares | Dissolved |
| BUSY THREAD MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| BUSY TIME LIMITED | Private company limited by shares | Dissolved |
| BUSY TIME LIMITED | Private company limited by shares | Live |
| BUSY TRADE LIMITED | Private company limited by shares | Dissolved |
| BUSY TRADE LIMITED | Private company limited by shares | Live |
| BUSY TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSY WIN TRADING LIMITED | Private company limited by shares | Live |
| BUSY FOCUS TRADING LIMITED | Private company limited by shares | Dissolved |
| BUSY TRADE TRADING LIMITED | Private company limited by shares | Dissolved |
| BUSY PEACE TRANSPORTATION LIMITED | Private company limited by shares | Dissolved |
| UNITRADE BUSY LIMITED | Private company limited by shares | Live |
| VICTORY BUSY LIMITED | Private company limited by shares | Live |
| BUSY WEALTH COMPANY LIMITED | Private company limited by shares | Live |
| WEALTH BUSY LIMITED | Private company limited by shares | Dissolved |
| WELL BUSY LIMITED | Private company limited by shares | Live |
| BUSY WELL LIMITED | Private company limited by shares | Dissolved |
| BUSY WELL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BUSYAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| BUSYBEE PRODUCTION LIMITED | Private company limited by shares | Live |
| BUSYCOURT LIMITED | Private company limited by shares | Live |
| BUSYDOOR COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSYEAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSYFAME TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSYHALL LIMITED | Private company limited by shares | Dissolved |
| BUSYINFO.COM LIMITED | Private company limited by shares | Dissolved |
| BUSYKING COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSYLAND COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUSYLUCK LIMITED | Private company limited by shares | Dissolved |
| BUSYLUCK DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BUSYLUCK INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| BUSYLUNIX HK Limited | Private company limited by shares | Dissolved |
| BUSYMAN INVESTMENTS LIMITED | Private company limited by shares | Live |
| BUSYPLUS LIMITED | Private company limited by shares | Dissolved |
| BUSY-RICH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BUSYSHOP LIMITED | Private company limited by shares | Dissolved |
| BUSYSTONE COMPANY LIMITED | Private company limited by shares | Live |
| BUSYTIME INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BUSYTRADE.COM LIMITED | Private company limited by shares | Live |
| BUSYTRANS SHIPPING LIMITED | Private company limited by shares | Dissolved |
| BUSYWISE LIMITED | Private company limited by shares | Dissolved |
| BUSYWORK LIMITED | Private company limited by shares | Dissolved |
| BUSYWORLD ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| B.U.T Company Limited | | Live |
| Buta Holding Limited | Private company limited by shares | Live |
| BUTA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| BUTA HAKATA-YA RAMEN LIMITED | Private company limited by shares | Live |
| BuTaDouRaKu Ramen Lab Limited | Private company limited by shares | Live |
| BuTaDouRaKu Ramen Lab (Hong Kong) Limited | Private company limited by shares | Live |
| BUTALIFE IMPORT AND EXPORT CO., LIMITED | | Live |
| Butallen Co., Limited | | Live |
| BUTANI LIMITED | Private company limited by shares | Live |
| BUTANI GROUP LIMITED | Private company limited by shares | Live |
| BUTANI JEWELLERY LIMITED | Private company limited by shares | Live |
| BUTANO LIMITED | Private company limited by shares | Dissolved |
| Butao Asia Limited | Private company limited by shares | Live |
| BUTAO (CHINA) LIMITED | Private company limited by shares | Live |
| BUTAO ( KOWLOON EAST ) LIMITED | Private company limited by shares | Live |
| Butao (Hong Kong) Limited | Private company limited by shares | Live |
| Ideal Butao Limited | Private company limited by shares | Live |
| Butao International Limited | Private company limited by shares | Live |
| BUTAO RAMEN LIMITED | Private company limited by shares | Live |
| Butao (Shatin) Limited | Private company limited by shares | Dissolved |
| BUTAO (TKO) LIMITED | Private company limited by shares | Live |
| Butarique Limited | | Live |
| BUTBRA INVESTMENT LIMITED | Private company limited by shares | Dissolved |