| Company Name | Type | Status |
|---|---|---|
| PROTEL LIMITED | Private company limited by shares | Live |
| PRO.TEL. (CHINA) LIMITED | Private company limited by shares | Dissolved |
| XN PROTEL SYSTEMS (HONG KONG) LIMITED | Private company limited by shares | Live |
| PROTEL SOFTWARE PRODUCTS LIMITED | Private company limited by shares | Live |
| Protel Circuit Tech Limited | Private company limited by shares | Live |
| PROTELIGEN GROUP LIMITED | Private company limited by shares | Live |
| PROTELL LIMITED | Private company limited by shares | Dissolved |