| RICHISON (ASIA) LIMITED | Private company limited by shares | Live |
| RICHISON & CO., LIMITED | Private company limited by shares | Live |
| RICHISON CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| RICHISON CONSULTANTS LIMITED | Private company limited by shares | Live |
| RICHISON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| RICHISON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| RICHISON TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| RICHISON TRADING LIMITED | Private company limited by shares | Live |