| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMENTUM ENTERPRISE ASSET SOLUTIONS LIMITED | 01172655 | 26/04/2011 | 22/01/2016 | One Red Flag |
| BABTIE FICHTNER LIMITED | 04241094 | 10/09/2001 | 15/06/2006 | Dissolved |
| BABTIE INTERNATIONAL LIMITED | SC062616 | 01/01/1996 | 30/06/2005 | Dissolved |
| INSPIRE DEFENCE LIMITED | 02021050 | 31/05/2006 | 18/02/2016 | Dissolved |
| JACOBS ONE LIMITED | SC141100 | 01/01/1996 | 07/09/2000 | Silver |
| JACOBS U.K. LIMITED | 02594504 | 20/12/2007 | 22/01/2016 | Bronze |
| NUCLEAR INDUSTRY ASSOCIATION | 02804518 | 30/11/2005 | 06/12/2006 | Gold |
| SULA SYSTEMS LIMITED | 02624519 | 15/12/2010 | 22/01/2016 | Dissolved |
| THE INSTITUTION OF ENGINEERS IN SCOTLAND | SC000358 | 01/08/1996 | 31/07/1999 | Amber |