| Company | Timeline | Status | |
Havenhall Limited Director • Engineer | 23 Oct 1998←18 Years→10 Oct 2017 | Dissolved | |
| Jonsford Limited Director • Engineer | 23 Dec 1997←3 Months→17 Apr 1998 | Dissolved | |
Nene Valley Construction Limited Director • Engineer | 18 May 1991←3 Years→25 Nov 1994 | Dissolved | |
