| Company | Timeline | Status | |
| Widgit Software Limited Director • Director | 5 Mar 2014←6 Years→12 Jun 2020 | Active | |
Speedwell Image Data Services Limited Director • Company Director | 3 Jul 2007←6 Years→11 Mar 2014 | Dissolved | |
Speedwell Computing Software Limited Director • Company Director | 3 Jul 2007←6 Years→7 Apr 2014 | Dissolved | |
Logotron Limited Director • Director | 14 Nov 2001←12 Years→30 Oct 2014 | Dissolved | |
| Isaac (U.K.) Director • Software Publisher | 17 Sep 2000←2 Years 12 Months→13 Sep 2003 | Active | |
| Symbols Worldwide Limited Director • Director | 31 Dec 1991←30 Years→11 Jan 2022 | Active | |
| Symbols Worldwide Limited Director • Unreported | 1 Jan 1970←52 Years→11 Jan 2022 | Active | |
