| PROTEX LIMITED | Private company limited by shares | Live |
| Protex Con Limited | Private company limited by shares | Live |
| PROTEX INC LIMITED | Private company limited by shares | Live |
| PROTEX AUTOMATION LIMITED | Private company limited by shares | Live |
| PROTEX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PROTEX INC. LIMITED | Private company limited by shares | Dissolved |
| Protex Point Limited | Private company limited by shares | Live |
| PROTEXIM LIMITED | Private company limited by shares | Dissolved |
| PRO-TEXTRA CO., LIMITED | Private company limited by shares | Live |
| PROTEXTRADE LIMITED | Private company limited by shares | Dissolved |