| BUILDUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUILD-UP COMPANY LIMITED | Private company limited by shares | Live |
| BUILDUP SUN COMPANY LIMITED | Private company limited by shares | Live |
| BUILD-UP CARGO SERVICE LIMITED | Private company limited by shares | Dissolved |
| BUILDUP CENTURY LIMITED | Private company limited by shares | Live |
| Buildup Construction Company Limited | | Live |
| BUILD-UP DECORATION COMPANY LIMITED | Private company limited by shares | Live |
| BUILD-UP FAR EAST LIMITED | Private company limited by shares | Dissolved |
| BUILDUP ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUILDUP ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Buildup Electrical Engineering Company Limited | Private company limited by shares | Live |
| BUILD-UP ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GOOD BUILD-UP LIMITED | Private company limited by shares | Live |
| BUILD-UP GROUP LIMITED | Private company limited by shares | Live |
| BUILD-UP ACCESSORIES MANUFACTURING (HONG KONG) LIMITED | Private company limited by shares | Live |
| BUILD-UP INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| BUILDUP INDUSTRIAL LIMITED | Private company limited by shares | Live |
| BUILD-UP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BUILD-UP ACCESSORIES MANUFACTURING LIMITED | Private company limited by shares | Live |
| BUILD-UP PLASTIC AND METAL COMPANY LIMITED -THE- | Private company limited by shares | Live |
| Buildup (Sunfield) Printing and Accessories Manufacturer Limited | Private company limited by shares | Live |
| BUILD-UP PROPERTIES LIMITED | Private company limited by shares | Live |
| BUILD-UP TRAVEL & TRANSPORTATION SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| Buildup Team Limited | Private company limited by shares | Live |
| BUILDUP TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BUILD-UP WORKSHOP CO. LIMITED | | Live |
| BUILD-UP.LYY LIMITED | | Live |