| Company Name | Type | Status |
|---|---|---|
| ESIA Co. Limited | Private company limited by shares | Live |
| ESIA AIR-CON (CHINA) LIMITED | Private company limited by shares | Live |
| ESIA Consult Pty Limited | Private company limited by shares | Live |
| ESIAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ESIAN INVESTMENT LIMITED | Private company limited by shares | Dissolved |