| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| LONTRA LIMITED | 05063449 | 25/10/2022 | Insolvent |
| REALIS PICTURES LTD | 14809717 | 17/04/2023 | Bronze |
| Sparesco Ltd | 03038419 | 02/09/1997 | Dissolved |
| Streetwise Television Ltd | 03711220 | 10/02/1999 | Dissolved |
| THE GILSTONE PARTNERSHIP LIMITED | 03478950 | 10/12/1997 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABBEY NATIONAL LEGACY LIMITED | 03211363 | 10/04/1997 | 03/06/2003 | Dissolved |
| New Investment for Trains I Plc | 03407847 | 19/04/2000 | 30/06/2002 | Dissolved |
| PORTERBROOK LEASING ASSET COMPANY LIMITED | 00635030 | 01/10/2008 | 05/04/2014 | Silver |
| PORTERBROOK LEASING COMPANY LIMITED | 02912662 | 27/08/1996 | 03/06/2003 | Silver |
| PORTERBROOK LEASING MID COMPANY LIMITED | 07007965 | 03/09/2009 | 05/04/2014 | Silver |
| PORTERBROOK MAINTENANCE LIMITED | 03657463 | 23/02/1999 | 03/06/2003 | Silver |
| PORTERBROOK MARCH LEASING (4) LIMITED | 02682768 | 24/02/2009 | 05/04/2014 | Silver |
| RAIL SAFETY AND STANDARDS BOARD LIMITED | 04655675 | 01/04/2003 | 31/03/2009 | Gold |
| Rolling Stock Finance 1 Ltd | 03232892 | 10/04/1997 | 03/06/2003 | Dissolved |
| Rolling Stock Finance 2 Plc | 03213240 | 10/04/1997 | 03/06/2003 | Dissolved |
| SANTANDER SECRETARIAT SERVICES LIMITED | 03072288 | 19/01/1996 | 03/06/2003 | Not Trading |
| Wheel Rail Interface System Authority Ltd | 04211929 | 01/06/2001 | 29/03/2004 | Dissolved |