| DILLON LIMITED | Private company limited by shares | Dissolved |
| DILLON & COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Dillon Technology Co., Limited | Private company limited by shares | Live |
| DILLON COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| CRAFER DILLON SURVEYORS LIMITED | Private company limited by shares | Dissolved |
| DILLON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GUV DILLON FOUNDATION LIMITED | Company limited by guarantee | Live |
| France Domaine Clarence Dillon Group Limited | Private company limited by shares | Live |
| Dillon (HK) Limited | | Live |
| DILLON SOFTWARE (H.K.) LIMITED | Private company limited by shares | Dissolved |
| DILLON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| DILLON NET INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| DILLON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| DILLON REALTY LIMITED | Private company limited by shares | Live |
| DILLON SHOES COMPANY LIMITED | Private company limited by shares | Live |