| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ABERFERN LIMITED | SC156215 | 30/12/1996 | Gold |
| ELLERSLEY HOUSE LTD | SC561653 | 27/03/2017 | Amber |
| R FERGUSSON LTD | SC396858 | 01/04/2011 | Bronze |
| TAX INVESTIGATION PROTECTION SERVICE LIMITED | SC196828 | 03/06/1999 | Dissolved |
| WD WEALTH MANAGEMENT (HOLDINGS) LTD | SC599421 | 08/06/2018 | Gold |
| WILLIAM DUNCAN (BUSINESS RECOVERY) LTD | SC413558 | 16/09/2013 | Bronze |
| WILLIAM DUNCAN (I.T. SOLUTIONS) LTD | SC192500 | 13/01/1999 | Silver |
| WILLIAM DUNCAN + CO LTD | SC465227 | 05/12/2013 | Amber |
| WILLIAM DUNCAN LLP | SO301370 | 31/05/2007 | Dissolved |
| XTRA ACCOUNTING LTD | SC440378 | 15/01/2013 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CRAIG CAMPBELL ONLINE LTD | SC580188 | 30/10/2017 | 12/12/2017 | Dissolved |
| FLEETSTONE LIMITED | SC190776 | 24/11/2003 | 20/09/2021 | Bronze |
| HARTFIELD HOUSE (AYR) LTD | SC425333 | 11/07/2012 | 01/02/2020 | Bronze |
| THE AYRSHIRE CHAMBER OF COMMERCE AND INDUSTRY | SC119799 | 20/09/2012 | 27/09/2018 | Bronze |
| WD WEALTH MANAGEMENT LTD | SC501257 | 23/03/2015 | 21/09/2015 | Gold |