| Company | Timeline | Status | |
| Davidson Baxter Partnership Limited Director • Architect | 1 Oct 2024←1 Year 2 Months→Current | Active | |
| Nomad-Ik Housing Ltd Director • Architect | 3 Mar 2022←3 Years→Current | Active | |
| Csya Trustees Limited Director • Architect | 29 May 2020←5 Years→Current | Active | |
| Abbotsford Homes Limited Director • Architect | 25 Feb 2020←5 Years→Current | Active | |
| Csy Architects Ltd Director • Architect | 23 Dec 2019←5 Years→Current | Active | |
| Douglas Strachan Ltd Director • Architect | 21 Aug 2014←11 Years→Current | Active | |
Bonnyrigg Centre Trust Ltd Director • Architect | 4 Dec 2013←2 Years 8 Months→17 Aug 2016 | Dissolved | |
