| Company | Timeline | Status | |
Redcliffe Magtronics Technology Limited Director • Director | 22 Jul 2015←1 Year 4 Months→22 Nov 2016 | Dissolved | |
Magnetech Technology Limited Director • Director | 22 Jul 2015←1 Year 4 Months→22 Nov 2016 | Dissolved | |
| Hirst Magnetic Instruments Limited Director • Electronics Engineer | 14 Feb 1991←30 Years→11 May 2021 | Active | |
