| Company | Timeline | Status | |
| Chemsol Limited Secretary • Secretary | 3 Nov 1993←8 Years→8 Jul 2002 | Active | |
| Sheffield Art Metal Limited Secretary • Unreported | 16 Oct 1991←14 Years→31 Mar 2006 | Active | |
| Relsim Limited Secretary • Unreported | 16 Jul 1991←31 Years→13 Sep 2022 | Dissolved | |
