| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| FIRST GREATER WESTERN LIMITED | 05113733 | 24/09/2007 | Silver |
| FIRST MTR SOUTH WESTERN TRAINS LIMITED | 07900320 | 10/07/2017 | Bronze |
| FIRST RAIL HOLDINGS LIMITED | 05154485 | 22/06/2009 | Silver |
| FIRST TRANSPENNINE EXPRESS LIMITED | 09111801 | 21/04/2016 | Amber |
| FIRST/KEOLIS HOLDINGS LIMITED | 04113984 | 04/05/2009 | Gold |
| FIRST/KEOLIS TRANSPENNINE HOLDINGS LIMITED | 04113990 | 04/05/2009 | Gold |
| FIRST/KEOLIS TRANSPENNINE LIMITED | 04113923 | 08/06/2009 | Gold |
| HULL TRAINS COMPANY LIMITED | 03715410 | 01/04/2009 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FIRST CAPITAL CONNECT LIMITED | 05281077 | 27/04/2009 | 04/01/2016 | Amber |
| FIRST GREAT WESTERN LINK LIMITED | 04804687 | 29/09/2003 | 30/09/2005 | Dissolved |
| FIRST RAIL HOLDINGS LIMITED | 05154485 | 01/10/2004 | 30/09/2005 | Silver |
| FIRST RAIL OPEN ACCESS HOLDINGS LIMITED | 03263210 | 31/03/2011 | 31/07/2024 | Gold |
| FIRST SCOTRAIL LIMITED | SC185018 | 05/07/2004 | 30/09/2005 | Amber |
| FIRST/KEOLIS TRANSPENNINE LIMITED | 04113923 | 08/08/2003 | 30/09/2005 | Gold |
| GREAT EASTERN RAILWAY LIMITED | 03007936 | 04/01/2001 | 30/09/2005 | Dissolved |
| GREAT WESTERN TRAINS COMPANY LIMITED | 02938992 | 13/07/1998 | 30/09/2005 | Dissolved |
| NORTH WESTERN TRAINS COMPANY LIMITED | 03007946 | 04/01/2001 | 30/09/2005 | Dissolved |
| Transportation Consultants International Ltd | 03210050 | 30/01/1997 | 15/06/1998 | Dissolved |
| WILTSHIRE LEASING COMPANY LIMITED | 03401057 | 14/06/1999 | 30/09/2005 | Dissolved |