| Company | Timeline | Status | |
| Down House Management Limited Director • University Lecturer | 4 Aug 2009←7 Years→3 Mar 2017 | Active | |
| Otodynamics Audiological Equipment Services Ltd Director • Company Director | 14 Aug 1995←30 Years→Current | Active | |
| Millwood Medical Limited Director • Company Director | 22 Feb 1995←30 Years→Current | Active | |
| Ototek Limited Director • Company Director | 24 Oct 1994←31 Years→Current | Active | |
| Otodynamics Limited Director • Company Director | 27 Feb 1993←32 Years→Current | Active | |
