| Company | Timeline | Status | |
| Alnwickhill Limited Director • Unreported | 28 Dec 2011←13 Years→Current | Active | |
| WM. Black & Sons (Building Contractors)Limited Director • Building Contractor | 11 Dec 1989←10 Years→24 Dec 1999 | Active | |
| Slateford Properties Limited Director • Builder | 31 Oct 1988←36 Years→9 Sep 2025 | Dissolved | |
