| Company | Timeline | Status | |
| Dora Wirth (Languages) Limited Director • Director | 5 May 2009←12 Years→1 Jul 2021 | Active | |
| Dora Wirth (Languages) Limited Secretary • Unreported | 31 Aug 2007←13 Years→1 Jul 2021 | Active | |
Intensive Care Monitor Limited Director • Director | 26 Jun 2007←10 Years→10 Apr 2018 | Dissolved | |
Intensive Care Monitor Limited Secretary • Unreported | 26 Jun 2007←10 Years→10 Apr 2018 | Dissolved | |
