| Company | Timeline | Status | |
| Allied Surveyors Scotland Limited Director • Unreported | 24 Nov 2021←3 Years→Current | Active | |
| The David Donnachie Family Investment Company Limited Director • Unreported | 30 May 2019←6 Years→Current | Active | |
Mountlodge Limited Director • Chartered Surveyor | 15 Apr 2011←7 Years→1 May 2018 | Liquidation | |
