| TWINTEC CO., LIMITED | Private company limited by shares | Live |
| TWINTEC ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Twintec Hong Kong Limited | Private company limited by shares | Live |
| TWINTEC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TWINTECH LIMITED | Private company limited by shares | Live |
| Twintech Co., Limited | | Live |
| TWINTECH DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| TWIN-TECH ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| TWIN-TECH ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Twintech Technology Limited | Private company limited by shares | Live |