| Company | Timeline | Status | |
| John Knight Glazing Limited Director • Director | 14 Jul 2002←8 Years→1 Oct 2010 | Active | |
| John Knight Glazing Limited Secretary • Director | 14 Jul 2002←8 Years→1 Oct 2010 | Active | |
| John Knight Glass Limited Director • Company Secretary | 10 Aug 1991←34 Years→Current | Active | |
| John Knight Glass Limited Secretary • Unreported | 10 Aug 1991←34 Years→Current | Active | |
