| OMNIS COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMNIS LIMITED | Private company limited by shares | Dissolved |
| OMNIS Limited | Private company limited by shares | Live |
| Omniscience Club Limited | | Live |
| Omniscience Zen Culture and Arts Research Academy Limited | | Live |
| Omniscience Holdings Limited | | Live |
| Omniscience International Financial Services Limited | | Live |
| OMNISCIENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OmniSeason Limited | Private company limited by shares | Live |
| OMNISHELF LIMITED | | Live |
| Omnisight Limited | | Live |
| Omnismart Limited | Private company limited by shares | Live |
| OMNISMARTY LIMITED | | Live |
| OMNISOL LIMITED | Private company limited by shares | Live |
| OMNISOLUTION MEDICAL SUPPLY LIMITED | Private company limited by shares | Live |
| OmniSource Limited | Private company limited by shares | Live |
| OMNISOURCING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Omnisourcing Trading Limited | Private company limited by shares | Live |
| OMNISPACE CO., LIMITED | | Live |
| Omni-Sport Tech Limited | | Live |
| Omnistream Co. Limited | Private company limited by shares | Live |
| OMNISUN INTERNATIONAL INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| OMNISYS COMPANY LIMITED | Private company limited by shares | Live |