| TRANSTEC LIMITED | Private company limited by shares | Live |
| KML TRANSTECH LIMITED | Private company limited by shares | Live |
| TRANSTECH LIMITED | Private company limited by shares | Dissolved |
| Transtech LED Company Limited | Private company limited by shares | Live |
| TRANSTECH ASIA LIMITED | Private company limited by shares | Live |
| TRANSTECH (CHINA) LIMITED | Private company limited by shares | Live |
| Transtech H.K Co., Limited | | Live |
| Transtech Ocean Co., Limited | Private company limited by shares | Live |
| TRANSTECH ENTERPRISE LIMITED | Private company limited by shares | Live |
| TRANSTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| TRANSTECH PARALLEL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| TRANSTECH SHIPPING LIMITED | Private company limited by shares | Dissolved |
| Transtech Systems Limited | Private company limited by shares | Live |
| TRANSTECH TRADING LIMITED | Private company limited by shares | Dissolved |
| TRANSTECH VEHICLES LIMITED | Private company limited by shares | Live |
| TRANSTECHNICAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Trans-Technology Limited | Private company limited by shares | Dissolved |
| TRANSTECH-WMI LIMITED | Private company limited by shares | Live |
| TRANSTECNICHS (ASIA) LIMITED | Private company limited by shares | Live |