| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DSJ ASSOCIATES LIMITED | 06298017 | 02/07/2007 | Dissolved |
| GCP CIVILS LIMITED | 06941541 | 23/06/2009 | Dissolved |
| GCP ENERGY LTD | SC404375 | 29/07/2011 | Dissolved |
| GCP RESOURCING LIMITED | 05087211 | 21/02/2005 | Dissolved |
| GROUND & ENVIRONMENTAL SOLUTIONS LTD | 06110993 | 16/02/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMBERSHAM HOLDINGS LIMITED | 03019717 | 24/03/1997 | 25/10/2004 | Dissolved |
| Carr West Ltd | 03247317 | 13/05/1997 | 14/04/2004 | Dissolved |
| G C PARTNERSHIP LIMITED | 04367559 | 01/07/2007 | 01/04/2011 | Dissolved |
| GCP DEVELOPMENT LIMITED | 05683526 | 22/01/2006 | 01/07/2009 | Dissolved |
| GCP RAIL LIMITED | 05683445 | 01/09/2007 | 01/04/2011 | Dissolved |
| YIL MANAGEMENT LTD | 09102263 | 25/06/2014 | 12/12/2014 | Dissolved |