| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRISTOL BUS STATION LIMITED | 01556325 | 20/07/2006 | Dissolved |
| FIRSTGROUP AIRPORTS LIMITED | 02051469 | 20/07/2006 | Dissolved |
| SOVEREIGN QUAY LIMITED | 02493276 | 28/06/2009 | Dissolved |
| THE NEW GREAT EASTERN RAILWAY COMPANY LIMITED | 04397728 | 04/10/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FB CANADA HOLDINGS LIMITED | SC356482 | 12/03/2009 | 01/02/2021 | Amber |
| FG CANADA INVESTMENTS LIMITED | SC356484 | 12/03/2009 | 01/02/2021 | Amber |
| FG PROPERTIES LIMITED | 02094289 | 19/06/2006 | 01/02/2021 | Bronze |
| FGI CANADA HOLDINGS LIMITED | SC356485 | 12/03/2009 | 17/08/2016 | Amber |
| FIRST BUS HOLDINGS LIMITED | 03261587 | 19/06/2006 | 01/02/2021 | Silver |
| FIRST CENTREWEST BUSES LIMITED | 03466135 | 20/07/2006 | 01/02/2021 | Dissolved |
| FIRST EUROPEAN HOLDINGS LIMITED | 05113697 | 26/03/2012 | 01/02/2021 | Dissolved |
| FIRST INFORMATION SERVICES LIMITED | SC288178 | 20/07/2006 | 01/02/2021 | Dissolved |
| FIRST METRO LIMITED | 06764007 | 02/12/2008 | 01/02/2021 | Dissolved |
| FIRST NORTH LONDON RAILWAY LIMITED | 04839667 | 04/10/2004 | 20/03/2006 | Dissolved |
| FIRST RAIL HOLDINGS LIMITED | 05154485 | 19/08/2004 | 01/02/2021 | Silver |
| FIRST RAIL PROCUREMENT LIMITED | 02996875 | 12/02/2000 | 10/02/2012 | Gold |
| FIRST SHARED SERVICES LIMITED | SC186520 | 20/07/2006 | 01/02/2021 | Dissolved |
| FIRST/KEOLIS HOLDINGS LIMITED | 04113984 | 15/07/2004 | 07/04/2005 | Gold |
| FIRST/KEOLIS TRANSPENNINE HOLDINGS LIMITED | 04113990 | 15/07/2004 | 07/04/2005 | Gold |
| FIRST/KEOLIS TRANSPENNINE LIMITED | 04113923 | 15/07/2004 | 07/04/2005 | Gold |
| FIRSTBUS (NORTH) LIMITED | 03261484 | 19/06/2006 | 01/02/2021 | Silver |
| FIRSTBUS GROUP LIMITED | 02059633 | 20/07/2006 | 01/02/2021 | Not Trading |
| FIRSTBUS INVESTMENTS LIMITED | 02205797 | 19/06/2006 | 01/02/2021 | Bronze |
| FIRSTGROUP AMERICAN INVESTMENTS | SC330038 | 29/08/2007 | 01/02/2021 | Amber |
| FIRSTGROUP HOLDINGS LIMITED | 02029363 | 24/11/2011 | 01/02/2021 | Silver |
| FIRSTGROUP US FINANCE LIMITED | SC330060 | 29/08/2007 | 01/02/2021 | Amber |
| FIRSTGROUP US HOLDINGS | SC330054 | 29/08/2007 | 01/02/2021 | Amber |
| GREAT EASTERN RAILWAY LIMITED | 03007936 | 25/02/1997 | 09/09/1998 | Dissolved |
| GREAT EASTERN RAILWAY LIMITED | 03007936 | 25/02/1997 | 19/06/2006 | Dissolved |
| GREAT WESTERN TRAINS COMPANY LIMITED | 02938992 | 21/05/1998 | 10/06/2011 | Dissolved |
| GREAT WESTERN TRUSTEES LIMITED | 03161093 | 29/04/1998 | 18/04/2012 | Dissolved |
| GRT BUS GROUP LIMITED | SC114203 | 19/06/2006 | 01/02/2021 | Amber |
| METROLINE WEST LIMITED | 08401654 | 15/02/2013 | 14/03/2013 | Bronze |
| NICECON LIMITED | SC138343 | 14/04/2005 | 01/02/2021 | Not Trading |
| NORTH WESTERN TRAINS COMPANY LIMITED | 03007946 | 20/05/1998 | 09/04/2009 | Dissolved |
| TELEPERFORMANCE GLOBAL BPO UK LIMITED | 02180352 | 12/06/2002 | 10/01/2010 | Amber |
| TOTALJOURNEY LIMITED | 04103605 | 25/10/2004 | 01/02/2021 | Not Trading |
| TOWER TRANSIT OPERATIONS LTD | 08314506 | 07/12/2012 | 14/03/2013 | Bronze |
| TRAM OPERATIONS LIMITED | 03097532 | 23/01/2001 | 01/02/2021 | Silver |
| TRAMTRACK CROYDON LIMITED | 03092613 | 11/01/2001 | 21/09/2001 | Amber |
| TRAMTRACK LEASING LIMITED | 03255005 | 11/01/2001 | 21/09/2001 | Dissolved |
| TRANSPORTATION CLAIMS LIMITED | 02149400 | 11/11/2011 | 18/11/2020 | One Red Flag |
| WILTSHIRE LEASING COMPANY LIMITED | 03401057 | 29/04/1998 | 18/04/2012 | Dissolved |