| Company Name | Type | Status |
|---|---|---|
| O.I.C. INC. LIMITED | Private company limited by shares | Dissolved |
| OICHI COMPANY LIMITED | Private company limited by shares | Live |
| O.I.C.PRINTING CO., LIMITED | Private company limited by shares | Live |
| OICQ METAL CO., LIMITED | Private company limited by shares | Live |
| OICVM LIMITED | Private company limited by shares | Live |