| Company | Timeline | Status | |
| Calder-McKenzie Limited Director • Director | 23 Feb 2012←13 Years→Current | Active | |
| Markland Hill Lawn Tennis Club Limited Director • Company Director | 22 Apr 2009←2 Years→3 May 2011 | Active | |
| Pencilfront Limited Director • Company Director | 7 Feb 2007←18 Years→Current | Active | |
| Flipcliff Limited Director • Company Director | 5 Feb 2007←18 Years→Current | Active | |
| Filuma Garage Doors Limited Director • Director | 17 Nov 2003←22 Years→Current | Active | |
| McKenzie-Martin (Holdings) Limited Director • Co Dir | 23 Jul 1999←26 Years→Current | Active | |
| Ulpha Investments Limited Director • Director | 25 Apr 1996←29 Years→Current | Active | |
| McKenzie-Martin Limited Director • Director | 5 Mar 1992←33 Years→Current | Active | |
Vanden Powder Coatings Limited Director • Company Director | 10 Feb 1992←10 Years→3 Apr 2002 | Dissolved | |
| Twinwall Limited Director • Company Director | 7 May 1991←34 Years→Current | Active | |
