| Company | Timeline | Status | |
| TDL Electronics UK Limited Secretary • Chartered Accountant | 16 Oct 2003←19 Years→10 Oct 2023 | Active | |
| Mordaunt-Short Limited Secretary • Chartered Accountant | 16 Oct 2003←19 Years→10 Oct 2023 | Active | |
| Gale Limited Secretary • Accountant | 16 Oct 2003←19 Years→10 Oct 2023 | Active | |
| Ariston Acoustics Limited Secretary • Accountant | 16 Oct 2003←19 Years→10 Oct 2023 | Active | |
| Ariston Audio Limited Secretary • Accountant | 16 Oct 2003←19 Years→10 Oct 2023 | Active | |
| Cambridge Audio Limited Secretary • Accountant | 21 Aug 2003←20 Years→10 Oct 2023 | Active | |
| Audio Innovations Limited Secretary • Accountant | 10 Jul 2003←20 Years→10 Oct 2023 | Active | |
| Opus Technologies Limited Secretary • Financial Director | 4 Mar 2003←20 Years→10 Oct 2023 | Active | |
| TDL Electronics UK Limited Director • Chartered Accountant | 4 Nov 1999←10 Years→11 Nov 2009 | Active | |
| Audio Partnership Plc Secretary • Chartered Accountant | 31 Mar 1998←25 Years→10 Oct 2023 | Active | |
