| Company | Timeline | Status | |
| Droitwich Preservation Trust Limited Director • Retired | 22 Jan 2002←12 Years→4 Dec 2014 | Active | |
| John Dowty Limited Director • Secretary | 3 Jan 1992←2 Years 8 Months→1 Sep 1994 | Active | |
| John Dowty Limited Secretary • Unreported | 3 Jan 1992←9 Years→21 Nov 2001 | Active | |
