| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BODY BALANCE (UK) LIMITED | 07410407 | 18/10/2010 | Dissolved |
| BUSINESS UNITS (CASTLE ROAD) MANAGEMENT LIMITED | 06483933 | 28/09/2021 | Not Trading |
| MERIDIAN GENERIC RAIL LIMITED | 06173952 | 20/03/2007 | Silver |
| MERIDIAN RAIL SERVICES CZ LIMITED | 12886521 | 17/09/2020 | Insolvent |
| PRCC 2024 LTD | 15861295 | 26/07/2024 | Amber |
| Prorail Projects Ltd | 06412611 | 30/10/2007 | Dissolved |
| SIMON TEMPLAR LIMITED | 11974379 | 01/05/2019 | Bronze |
| TREADSTONE OPERATIONS LIMITED | 13900915 | 08/02/2022 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| IESTYN DAVID LIMITED | 06592509 | 03/01/2011 | 03/01/2011 | Dissolved |
| Rail Commission & Support Ltd | 06066489 | 01/04/2008 | 12/10/2009 | Dissolved |
| Wyre Rail Solutions Ltd | 06342483 | 14/08/2007 | 19/11/2009 | Dissolved |