| Cortech Limited | | Live |
| CORTECS LIMITED | Private company limited by shares | Live |
| CORTENA COMPANY LIMITED | Private company limited by shares | Dissolved |
| CORTER LIMITED | Private company limited by shares | Live |
| Cortesia Limited | Private company limited by shares | Live |
| CORTEST CHINA LIMITED | Private company limited by shares | Live |
| CORTEX LIMITED | Private company limited by shares | Dissolved |
| CORTEX LIMITED | Private company limited by shares | Dissolved |
| CORTEX LIMITED | Private company limited by shares | Live |
| Cortex Business Solutions Limited | Private company limited by shares | Live |
| CORTEX INVESTMENTS LIMITED | Private company limited by shares | Live |
| Cortex market Limited | | Live |
| Cortex Sales Limited | Private company limited by shares | Live |
| CORTEZ LIMITED | Private company limited by shares | Dissolved |
| CORTEZ INC LIMITED | | Live |