| OKABE DENTAL TRADING CO., LIMITED | Private company limited by shares | Live |
| OKABE DENTAL TRADING CO., LIMITED | Private company limited by shares | Live |
| OKABE (HONG KONG) LIMITED | Private company limited by shares | Live |
| OKABE & LOCK (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| OKABE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OKABE CAPITAL MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| OKABE SEIKO HK COMPANY LIMITED | Private company limited by shares | Dissolved |