| Company | Timeline | Status | |
| Tay Homes Limited Director • Chartered Surveyor | 25 Jan 2021←4 Years→Current | Active | |
| Whitehirst Kilwinning Limited Director • Real Estate/housing | 20 Jan 2016←9 Years→Current | Active | |
| Heritage Developments (Ayrshire) Limited Director • Surveyor | 7 Aug 2000←25 Years→Current | Active | |
| Albion Douglas Limited Director • Quantity Surveyor | 18 Dec 1997←27 Years→Current | Active | |
| D. McLaughlin & Sons Limited Director • Quantity Surveyor | 30 May 1995←30 Years→Current | Active | |
