| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CS CONSTRUCTION MANAGEMENT LIMITED | 11969407 | 29/04/2019 | Amber |
| IN2RAIL LIMITED | 06905393 | 14/05/2009 | Not Trading |
| IN2SOLUTIONS LIMITED | 06763351 | 02/12/2008 | Silver |
| INFORMED QUALITY LIMITED | 08014050 | 30/03/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACCOMMODATION CONCERN | 07945758 | 06/09/2013 | 26/03/2018 | Bronze |
| Ata Rail Recruitment Ltd | 03475804 | 17/12/2001 | 18/07/2003 | Dissolved |
| CATALIS LIMITED | 04086015 | 21/03/2006 | 08/02/2008 | Dissolved |
| GANYMEDE SOLUTIONS LIMITED | 03579773 | 24/10/2002 | 04/07/2008 | Bronze |
| Gem-Weld (Uk) Ltd. | SC212079 | 01/11/2005 | 05/11/2008 | Dissolved |
| IN2CONSTRUCTION LIMITED | 10793924 | 30/05/2017 | 10/04/2019 | Dissolved |
| RAIL INDUSTRY CONTRACTORS ASSOCIATION LTD | 03802483 | 13/05/2003 | 11/05/2004 | Silver |
| THE DERBY CONFERENCE CENTRE LIMITED | 03061642 | 23/01/2007 | 08/02/2008 | Bronze |