| Company | Timeline | Status | |
| Swift Data Cabling Limited Director • Director | 17 Feb 2015←6 Years→2 Feb 2022 | Active | |
| Tarnwalk (UK) Limited Director • Company Secretary | 12 Sep 2003←9 Years→1 Nov 2012 | Active | |
| Tarnwalk (UK) Limited Secretary • Company Secretary | 15 Feb 1994←18 Years→1 Nov 2012 | Active | |
David Davies And Son Limited Secretary • Unreported | 18 Nov 1992←27 Years→7 Apr 2020 | Dissolved | |
