| Company | Timeline | Status | |
| Smith Bros. (Darcy Lever) Limited Director • Engineer | 31 Oct 1996←29 Years→Current | Active | |
| J.V.K. Engineers (Bolton) Limited Director • Engineer | 31 Dec 1990←35 Years→Current | Active | |
| J.V.K. Engineers (Bolton) Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
