| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A P WILLIAMSON CONSULTANTS LTD | 07763766 | 06/09/2011 | Gold |
| A P Williamson Consultants Ltd | 04467772 | 24/06/2002 | Dissolved |
| OLD MKA LTD | 04239062 | 01/07/2005 | Dissolved |
| WEMBLEY ROOFING/CEILINGS LTD | 00397037 | 16/04/1992 | Dissolved |
| Wembley Roofing Ltd | 00927118 | 21/04/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| THE INSTITUTE OF ROOFING | 04119453 | 17/10/2007 | 01/09/2010 | Gold |
| Wembley Contractors Ltd | 03211180 | 25/06/1996 | 22/04/2003 | Dissolved |