| Seaunicom Maritime Co., Limited | Private company limited by shares | Live |
| SEAUNION NAVIGATION (AGENCY) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEAUNION INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEAUNION PROPERTIES LIMITED | Private company limited by shares | Live |
| SEAUNION SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEAUNION TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SEAUNION TRADING LIMITED | Private company limited by shares | Dissolved |
| SEAUNION TRANSPORTATION LIMITED | Private company limited by shares | Live |