| Company | Timeline | Status | |
| Scottish Masonic Homes Limited Director • Grand Secretary | 14 Sep 2020←5 Years→Current | Active | |
| Grand Lodge Trustee Limited Director • Grand Secretary | 14 Sep 2020←5 Years→Current | Active | |
| Airlie Street Properties Limited Director • Director | 6 Feb 2019←6 Years→Current | Active | |
| Airlie Street Investments Limited Director • Director | 6 Feb 2019←6 Years→Current | Active | |
| William Semple Consulting Limited Director • Ceo | 4 Jun 2015←9 Years→5 Nov 2024 | Dissolved | |
