| Art Onni Limited | Private company limited by shares | Live |
| Onni Consulting Limited | Private company limited by shares | Live |
| ONNI CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONNI INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ONNI BUSINESS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ONNI CORPORATE SERVICES LIMITED | | Live |
| ONNI TRADE LIMITED | Private company limited by shares | Dissolved |
| ONNIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONNIS LIMITED | Private company limited by shares | Dissolved |
| ONNIVAS TRADING LIMITED | Private company limited by shares | Dissolved |
| ONNIX COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONNIX INTERNATIONAL LIMITED | Private company limited by shares | Live |