| DELFT LIMITED | Private company limited by shares | Live |
| DELFT ENGINEERING (HK) CONSULTANTS LIMITED | Private company limited by shares | Live |
| Hong Kong Delft Co., Limited | Private company limited by shares | Live |
| DELFT INSTRUMENTS FAR EAST LIMITED | Private company limited by shares | Dissolved |
| DELFT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Delft International Development Limited | Private company limited by shares | Live |
| Royal Delft Asia Limited | Private company limited by shares | Live |
| DELFTALAND LIMITED | Private company limited by shares | Dissolved |