| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALFRED HULME LIMITED | SC350347 | 12/01/2009 | Dissolved |
| Diversion Insurance (Timber) Association Ltd | 01071615 | 23/07/1997 | Dissolved |
| Enterprise Levenmouth Ltd | SC103038 | 25/10/1989 | Dissolved |
| JAMES DONALDSON GROUP LTD | SC010528 | 18/08/1989 | Silver |
| LANDSCAPE STRUCTURES (SCOTLAND) LIMITED | SC201321 | 21/12/1999 | Dissolved |
| LEADER TIMBER LIMITED | SC140277 | 22/11/2010 | Dissolved |
| Midlands Truss Ltd | SC161246 | 20/11/1995 | Dissolved |
| THE OLD COURSE LIMITED | SC107577 | 29/09/2020 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BAILLIE GIFFORD SHIN NIPPON PUBLIC LIMITED COMPANY | SC093345 | 01/08/2014 | 17/05/2023 | Silver |
| CRIEFF HYDRO LIMITED | SC000268 | 20/12/1995 | 28/02/2014 | Bronze |
| DONALDSON TIMBER ENGINEERING LIMITED | SC099182 | 18/08/1989 | 31/08/2020 | Gold |
| DONALDSON TRUSTEE LIMITED | SC159880 | 01/11/1995 | 31/08/2020 | Not Trading |
| JAMES DONALDSON INSULATION LIMITED | SC237698 | 03/10/2002 | 31/08/2020 | Silver |
| JAMES DONALDSON TIMBER LIMITED | SC183918 | 17/03/1998 | 31/08/2020 | Gold |
| MERCHISTON CASTLE SCHOOL | SC014265 | 11/03/1996 | 04/07/2009 | Silver |
| MERCHISTON ENTERPRISES LIMITED | SC081893 | 01/03/2004 | 04/07/2009 | One Red Flag |
| MGM TIMBER (SCOTLAND) LIMITED | SC129921 | 27/09/2004 | 31/08/2020 | Silver |
| NEW PARK EDUCATIONAL TRUST LIMITED | SC028957 | 12/05/2009 | 07/11/2022 | Bronze |
| NU-STYLE PRODUCTS (HOLDINGS) LIMITED | SC376003 | 30/11/2016 | 31/08/2020 | Bronze |
| NU-STYLE PRODUCTS LIMITED | SC118709 | 30/11/2016 | 31/08/2020 | Gold |
| PARKER KISLINGBURY LIMITED | SC209915 | 07/12/2000 | 31/08/2020 | Not Trading |
| Premier Homes (Scotland) Ltd | SC088536 | 20/01/1989 | 28/02/1999 | Dissolved |
| R&A CHAMPIONSHIPS LIMITED | SC247047 | 18/09/2014 | 21/09/2017 | Amber |
| R&A GROUP SERVICES LIMITED | SC247048 | 18/09/2014 | 20/09/2018 | Gold |
| R&A TRUST COMPANY (NO.1) LIMITED | SC247045 | 20/09/2012 | 20/09/2018 | Gold |
| R&A TRUST COMPANY (NO.2) LIMITED | SC247049 | 20/09/2012 | 20/09/2018 | Not Trading |
| ST. LEONARDS SCHOOL | SC016693 | 16/03/2015 | 06/12/2021 | Silver |
| STOS PLC | SC001827 | 02/11/1998 | 27/06/2005 | Dissolved |
| STS GLOBAL INCOME & GROWTH TRUST PLC | SC283272 | 11/05/2005 | 27/07/2016 | Gold |
| THE ROYAL & ANCIENT GOLF CLUB OF ST. ANDREWS TRUST | SC102624 | 03/05/2017 | 20/09/2018 | Bronze |
| TIMBER DEVELOPMENT UK LIMITED | 02515034 | 07/12/2004 | 14/06/2016 | Bronze |
| TIMBER RESEARCH AND DEVELOPMENT ASSOCIATION | 00286895 | 05/07/1996 | 03/07/2003 | Not Trading |
| TTL CHILTERN PROPERTY LIMITED | 02878871 | 29/11/1999 | 10/09/2002 | Gold |