| Company | Timeline | Status | |
| Witt & Son Properties Limited Director • Unreported | 24 Jul 2006←19 Years→Current | Active | |
| Witt & Son Properties Limited Secretary • Unreported | 24 Jul 2006←19 Years→Current | Active | |
| Witt & Son UK Holdings Limited Secretary • Unreported | 5 Apr 2002←10 Years→1 Mar 2013 | Active | |
| PSB-UK Limited Director • Unreported | 14 Sep 2001←24 Years→Current | Active | |
| Fan Systems Limited Secretary • Unreported | 27 Oct 1993←32 Years→Current | Active | |
| Witt Group - UK Service Limited Secretary • Unreported | 27 Oct 1993←3 Years→1 Oct 1997 | Active | |
| Fan Systems Group Limited Secretary • Director | 27 Oct 1993←3 Years→1 Oct 1997 | Active | |
| Witt Group - UK Service Limited Director • Unreported | 18 Aug 1993←32 Years→Current | Active | |
| Fan Systems Limited Director • Company Director | 18 Aug 1993←32 Years→Current | Active | |
| Fan Systems Group Limited Director • Unreported | 18 Aug 1993←32 Years→Current | Active | |
