| Company | Timeline | Status | |
| Worldwide Counter Threat Solutions Ltd Director • Electronic Engineer | 31 Aug 2012←1 Year 3 Months→9 Dec 2013 | Dissolved | |
| Allen-Vanguard Ltd Director • Electronic Engineer | 31 Aug 2012←7 Years→17 Jan 2020 | Active | |
| Allen-Vanguard Ltd Director • Director | 21 Oct 2003←4 Years→5 Mar 2008 | Active | |
