| TRILLIUM LIMITED | Private company limited by shares | Dissolved |
| TRILLIUM COMPANY LIMITED | Private company limited by shares | Live |
| TRILLIUM CONSULTING LIMITED | Private company limited by shares | Live |
| TRILLIUM CREATION LIMITED | Private company limited by shares | Dissolved |
| H L TRILLIUM ASIA PACIFIC GROUP LIMITED | Private company limited by shares | Dissolved |
| Trillium Management Limited | Private company limited by shares | Live |
| TRILLIUM NOVA COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRILLIUM TRADING LIMITED | Private company limited by shares | Live |