| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BAIN & IRVINE LTD. | SC299125 | 17/03/2006 | Amber |
| GWJM GOLF LTD | SC606908 | 31/08/2018 | Amber |
| Natural Stone Institute | SC236107 | 12/01/2006 | Dissolved |
| SWANSTON GOLF CLUB LTD | SC418252 | 07/07/2014 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COMPETENTROOFER LIMITED | 05704588 | 01/02/2014 | 15/10/2019 | Bronze |
| PEEBLES GOLF CLUB LIMITED | SC130930 | 22/02/2006 | 23/02/2009 | One Red Flag |
| SCOTTISH STONE LIAISON GROUP | SC205168 | 23/01/2006 | 29/03/2011 | Dissolved |
| THE INSTITUTE OF ROOFING | 04119453 | 08/12/2022 | 08/11/2024 | Gold |
| THE NATIONAL FEDERATION OF ROOFING CONTRACTORS LIMITED | 02591364 | 22/04/2009 | 08/07/2010 | Silver |
| THE NATIONAL FEDERATION OF ROOFING CONTRACTORS LIMITED | 02591364 | 15/05/2010 | 13/05/2016 | Silver |