| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASTRA GROUP LIMITED | 04000254 | 07/02/2014 | Not Trading |
| COMMISSIONING SERVICES LIMITED | 03474307 | 05/01/2018 | Not Trading |
| DON GROUP LIMITED | 09463095 | 27/02/2015 | Not Trading |
| GRADON INVESTMENTS LIMITED | 09428168 | 07/10/2015 | Silver |
| HEADLAND SERVICES LIMITED | 02804643 | 24/03/2015 | One Red Flag |
| PEOPLE ENERGY LIMITED | 05847620 | 05/07/2013 | Gold |
| RDPA LIMITED | 11573437 | 17/09/2018 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSERTA RAIL PROJECTS LIMITED | 04228602 | 21/05/2004 | 18/11/2013 | Dissolved |
| COMMISSIONING SERVICES LIMITED | 03474307 | 01/12/1997 | 18/11/2013 | Not Trading |
| NSAR LIMITED | 07484465 | 03/12/2013 | 02/12/2014 | Silver |
| PRIMA S G H LIMITED | 07277166 | 28/07/2010 | 18/11/2013 | Not Trading |
| PRIMA SERVICES GROUP LIMITED | 02542471 | 21/03/2006 | 18/11/2013 | Not Trading |
| PRIMA SERVICES GROUP LIMITED | 02542471 | 08/06/2010 | 18/11/2013 | Not Trading |
| RAIL INDUSTRY CONTRACTORS ASSOCIATION LTD | 03802483 | 10/05/2005 | 09/07/2014 | Silver |
| STIRLING ENGINEERING SERVICES LIMITED | 03472705 | 27/11/1997 | 18/11/2013 | Dissolved |
| STIRLING METRO-RAIL LIMITED | 03472797 | 28/11/1997 | 18/11/2013 | Not Trading |
| THE CONSTRUCTION SKILLS AGENCY LIMITED | 03617794 | 18/08/1998 | 18/11/2013 | Dissolved |