| Company Name | Type | Status |
|---|---|---|
| IONA Limited | Live | |
| IONA INVESTMENTS LIMITED | Private company limited by shares | Live |
| IONA TRADING LIMITED | Private company limited by shares | Dissolved |
| Ionada Limited | Private company limited by shares | Dissolved |
| IONARC SMELTERS (O'SEAS) LIMITED | Private company limited by shares | Dissolved |
| I-ONASIA LIMITED | Private company limited by shares | Live |
| MAXIMA'S I-ONASIA LIMITED | Private company limited by shares | Dissolved |