| Company | Timeline | Status | |
| Clarkson Joinery & Furniture Ltd Director • Director  | 20 Dec 2013←11 Years→Current  | Active  | |
| JD Developments (London) Limited Director • Builder  | 24 Jan 2006←19 Years→Current  | Active  | |
| Clarkson Builders Limited Director • Unreported  | 18 Feb 1997←28 Years→Current  | Active  | |
