| SUM KEE WATERWORKS COMPANY LIMITED | Private company limited by shares | Dissolved |
| WATERWORKS ONE COMPANY LIMITED | Private company limited by shares | Live |
| HK WaterWorks Limited | Private company limited by shares | Live |
| WaterWorks Co. Limited | | Live |
| Buddy Waterworks Limited | Private company limited by shares | Live |
| WATERWORKS CLOTHING LIMITED | Private company limited by shares | Dissolved |
| MACAU WATERWORKS COMPANY, LIMITED -THE- | Private company limited by shares | Dissolved |
| SHUI WING WATERWORKS LIMITED | Private company limited by shares | Dissolved |