| Company | Timeline | Status | |
| J. W. Whittle Limited Director • Engineer | 31 Mar 1991←3 Years→29 Apr 1994 | Active | |
| Brooklands (Leigh) Limited Director • Engineer | 31 Dec 1990←17 Years→18 Dec 2008 | Active | |
| Brooklands (Leigh) Limited Director • Unreported | 1 Jan 1970←38 Years→18 Dec 2008 | Active | |
