| COMTEC LIMITED | Private company limited by shares | Dissolved |
| COMTECH LIMITED | Private company limited by shares | Dissolved |
| COMTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMTECH LIMITED | Private company limited by shares | Live |
| CHINA COM-TECH LIMITED | Private company limited by shares | Live |
| CHINA COMTECH INTERNATIONAL GROUP (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| COMTECH CYBER LIMITED | Private company limited by shares | Dissolved |
| COMTECH INVESTMENT LIMITED | Private company limited by shares | Live |
| COMTECH RESEARCH LIMITED | Private company limited by shares | Dissolved |
| COMTECH RESOURCES LIMITED | Private company limited by shares | Dissolved |
| COMTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| COMTECH WATCHES COMPANY LIMITED | Private company limited by shares | Live |
| COMTECMED LIMITED | Private company limited by shares | Live |