| Company | Timeline | Status | |
Assistive Listening Systems Limited Director • Electronics Engineer | 12 Apr 2012←4 Years→18 Oct 2016 | Dissolved | |
Assistive Hearing Limited Director • Electronics Engineer | 5 Apr 2012←4 Years→18 Oct 2016 | Dissolved | |
| V A Systems Limited Director • Sound Communication Engineer | 16 Feb 2006←19 Years→Current | Active | |
| Elite Audio Limited Director • Electronics Engineer | 4 Sep 2003←22 Years→Current | Active | |
