| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARISAIG CONTRACTING LTD | 15115740 | 05/09/2023 | Bronze |
| CROSSFIELD POWER & SECURITY LIMITED | 07408525 | 08/07/2022 | Bronze |
| FELLSMAN LIMITED | 08920477 | 17/10/2016 | Not Trading |
| FELLSMAN RAILTOURS LIMITED | 08921452 | 17/10/2016 | Not Trading |
| HOSKING PARTNERS LLP | OC382151 | 31/07/2014 | One Red Flag |
| HOSKING RESEARCH LIMITED | 08794430 | 28/11/2013 | Dissolved |
| KC01 LIMITED | 14005373 | 28/03/2022 | Bronze |
| L S SHUNTERS LIMITED | 06804052 | 28/01/2009 | One Red Flag |
| LOCOMOTIVE 34046 LIMITED | 06813509 | 09/02/2009 | Amber |
| LOCOMOTIVE 4270 LIMITED | 09181989 | 19/08/2014 | Bronze |
| LOCOMOTIVE 5029 LIMITED | 06804131 | 28/01/2009 | One Red Flag |
| LOCOMOTIVE 60019 LIMITED | 06804177 | 28/01/2009 | One Red Flag |
| LOCOMOTIVE 6024 LIMITED | 07483630 | 06/01/2011 | One Red Flag |
| LOCOMOTIVE 61306 LIMITED | 14147333 | 01/06/2022 | Silver |
| LOCOMOTIVE 6960 LIMITED | 07995278 | 19/03/2012 | One Red Flag |
| LOCOMOTIVE 70000 LIMITED | 07346193 | 16/08/2010 | One Red Flag |
| LOCOMOTIVE 92212 LIMITED | 06804074 | 28/01/2009 | One Red Flag |
| LOCOMOTIVE DIESELS LIMITED | 09366820 | 24/12/2014 | One Red Flag |
| LOCOMOTIVE SERVICES (TOC) LIMITED | 10375954 | 14/09/2016 | One Red Flag |
| LOCOMOTIVE SERVICES LIMITED | 05237785 | 22/09/2004 | Silver |
| LOCOMOTIVE STORAGE LIMITED | 08753647 | 29/10/2013 | Bronze |
| LONDON AND NORTH WESTERN RAILWAY HERITAGE COMPANY LIMITED | 05579807 | 28/02/2014 | Bronze |
| MIDLAND PULLMAN LTD. | 12779259 | 29/07/2020 | Not Trading |
| RECLAIM THE MEDIA LTD | 13562398 | 29/05/2022 | Amber |
| SAPHOS HOTELS LLP | OC352354 | 16/02/2010 | Silver |
| SAPHOS LIMITED | 06500441 | 11/02/2008 | Not Trading |
| SAPHOS TRAIN TRAVEL LIMITED | 10974024 | 21/09/2017 | One Red Flag |
| SAPHOS TRAINS LLP | OC401159 | 05/08/2015 | Not Trading |
| STATESMAN RAIL LIMITED | 06058342 | 17/10/2016 | One Red Flag |
| THE HOSKING CHARITABLE TRUST | 11292233 | 05/04/2018 | Silver |
| THE STEAM DREAMS RAIL CO LTD | 11454196 | 01/06/2022 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| MARATHON (LONDON) LIMITED | 02088887 | 08/05/1992 | 11/12/2012 | Dissolved |
| MARATHON ASSET MANAGEMENT (OVERSEAS) LIMITED | 02160804 | 05/06/1991 | 11/12/2012 | Dissolved |
| MARATHON ASSET MANAGEMENT (SERVICES) LIMITED | 02051135 | 08/05/1991 | 20/08/2013 | Silver |
| MARATHON CAPITAL MANAGEMENT LIMITED | 02088608 | 05/06/1991 | 11/12/2012 | Dissolved |
| MARATHON FUND MANAGERS LIMITED | 03284655 | 27/11/1996 | 11/12/2012 | Dissolved |
| MARATHON INVESTMENT MANAGEMENT LIMITED | 03275254 | 07/11/1996 | 11/12/2012 | Dissolved |
| MARATHON UNIT TRUST MANAGEMENT LIMITED | 03284643 | 27/11/1996 | 11/12/2012 | Dissolved |
| NESNA LLP | OC305964 | 05/11/2003 | 20/08/2013 | Dissolved |
| PALACE MIDCO UK LIMITED | 09898551 | 18/12/2015 | 23/07/2021 | Amber |