| COSEC LIMITED | Private company limited by shares | Dissolved |
| CO-SEC ACCOUNTANCY LIMITED | Private company limited by shares | Live |
| Jordan Cosec (Hong Kong) Limited | Private company limited by shares | Live |
| CO-SEC NOMINEE LIMITED | Private company limited by shares | Live |
| COSEC PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| COSEC SECRETARIAL LIMITED | Private company limited by shares | Live |
| COSECAI LIMITED | | Live |
| COSECHA COMPANY LIMITED | Private company limited by shares | Live |
| COSECOSY LIMITED | | Live |
| COSECRE LIMITED | Private company limited by shares | Dissolved |