| Company | Timeline | Status | |
| Birch Lodge Developments Ltd Director • Engineer | 19 Dec 2017←7 Years→Current | Active | |
| Marks Heeley Limited Director • Structural Engineer | 31 Oct 2008←17 Years→Current | Active | |
| MHB Property Limited Director • Engineer | 3 Sep 1997←28 Years→Current | Active | |
| Marks Heeley & Brothwell Limited Director • Structural Engineer | 18 Jan 1992←33 Years→3 Jun 2025 | Dissolved | |
