| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASPHALT TESTING LTD | 05957710 | 04/04/2007 | Dissolved |
| HIGHWAY DATA SYSTEMS LTD | SC401345 | 09/06/2011 | Bronze |
| MATTEST MAGHREB LIMITED | 10994179 | 03/10/2017 | Dissolved |
| Mattest Site Services (Southern) Ltd | 05340562 | 24/01/2005 | Dissolved |
| R3 CONSULTANTS LIMITED | 08266189 | 24/10/2012 | Dissolved |
| Utest Ltd | 06012281 | 28/11/2006 | Dissolved |
| Wf International Ltd | 00360538 | 03/08/1999 | Dissolved |
| Wind Power Systems Uk Ltd | 05874059 | 20/07/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH EDUCATIONAL SUPPLIERS ASSOCIATION | 01097059 | 13/10/1997 | 13/10/1998 | Silver |
| Ele International Ltd | 02307609 | 29/07/1993 | 16/10/1998 | Dissolved |
| Environmental Instrumentation Group Ltd | 02295798 | 01/09/1995 | 01/06/1998 | Dissolved |