| MAREX LIMITED | | Live |
| Marex Distribution Limited | Private company limited by shares | Live |
| MAREX FINANCIAL FX LIMITED | Private company limited by shares | Dissolved |
| MAREX FINANCIAL LIMITED | Private company limited by shares | Live |
| Marex Hong Kong Limited | Private company limited by shares | Live |
| MAREX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| MAREX INVESTMENTS LIMITED | Private company limited by shares | Live |
| MAREXCO LIMITED | Private company limited by shares | Dissolved |
| MAREXFOREX LIMITED | Private company limited by shares | Dissolved |