| HYPERION LIMITED | Private company limited by shares | Dissolved |
| HYPERION HK LIMITED | Private company limited by shares | Live |
| HYPERION LIMITED | Private company limited by shares | Dissolved |
| Hyperion Limited | Private company limited by shares | Live |
| Hyperion Asia Limited | Private company limited by shares | Live |
| HYPERION ENTERPRISES LIMITED | Private company limited by shares | Live |
| HYPERION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HYPERION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HYPERION MEMORY LIMITED | Private company limited by shares | Live |
| HYPERION PACIFIC LIMITED | Private company limited by shares | Dissolved |
| Hyperion Resources Limited | Private company limited by shares | Live |
| HYPERION SOLAR LIMITED | Private company limited by shares | Live |