| Company | Timeline | Status | |
| LJS Ayrshire Ltd Director • Director | 2 Mar 2017←8 Years→Current | Active | |
| Simpson Developments (Ayrshire) Ltd Director • Director | 22 Dec 2016←8 Years→Current | Active | |
| M & K Simpson Limited Director • None | 30 Mar 2015←10 Years→Current | Active | |
| Simpsinns Limited Director • Hotelier | 4 Jul 2001←24 Years→Current | Active | |
