| Company Name | Type | Status |
|---|---|---|
| TRANS-POWER LIMITED | Private company limited by shares | Dissolved |
| TRANSPOWER ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| TRANS-POWER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TRANSPOWER SHIPPING LIMITED | Private company limited by shares | Live |
| TRANSPOWER TECHNOLOGY LIMITED | Private company limited by shares | Live |