| TREVE COMPANY LIMITED | Private company limited by shares | Live |
| TREVECCA LIMITED | Private company limited by shares | Dissolved |
| TREVELLICK COMPANY LIMITED | Private company limited by shares | Dissolved |
| TREVELYAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Trevelyan Consulting Limited | Private company limited by shares | Live |
| Trevelyan Investment Group Limited | Private company limited by shares | Live |
| TREVENA COMPANY LIMITED | Private company limited by shares | Live |
| Trevena Trading Limited | Private company limited by shares | Live |
| TREVERTO LIMITED | Private company limited by shares | Dissolved |
| Treves Green & Light Components Limited | | Live |
| Treves Hong Kong Limited | Private company limited by shares | Live |