| Company | Timeline | Status | |
| Campbell Jackson Ltd Director • Unreported | 19 Oct 2021←4 Years→Current | Active | |
| Jackson's Of Harpenden Ltd Director • Unreported | 16 Nov 2017←8 Years→Current | Active | |
Jackson Heating Limited Director • Company Director | 6 Apr 2005←9 Years→9 Sep 2014 | Dissolved | |
| D & F Properties (Hitchin) Ltd Director • Unreported | 4 Mar 2003←22 Years→Current | Active | |
