| BENCO LIMITED | Private company limited by shares | Live |
| Benco Chemical Group Limited | Private company limited by shares | Live |
| Benco Enterprise Co., Limited | Private company limited by shares | Live |
| BENCO TRADING CO., LIMITED | | Live |
| BENCO DECORATION ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| BENCO DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| BENCO ENGINEERING LIMITED | Private company limited by shares | Live |
| BENCO GROUP LIMITED | Private company limited by shares | Dissolved |
| BENCO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| BENCO ENGINEERING (HK) LIMITED | | Live |
| BENCO HOLDINGS LIMITED | Private company limited by shares | Live |
| BENCO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| BENCO INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| BENCO INDUSTRY LIMITED | Private company limited by shares | Live |
| BENCO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BENCO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BENCOFER COMPANY LIMITED | Private company limited by shares | Dissolved |
| BENCOMO COMPANY LIMITED | Private company limited by shares | Dissolved |
| BENCON LIMITED | Private company limited by shares | Live |
| BENCOOLEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| BENCORD LIMITED | Private company limited by shares | Dissolved |
| BENCORP LIMITED | Private company limited by shares | Dissolved |
| BENCORP (HK) LIMITED | Private company limited by shares | Dissolved |
| BENCORY LIMITED | Private company limited by shares | Live Ceased dormancy on 21-Jun-1999 |