| Company | Timeline | Status | |
| Legis Support Limited Director • Computer Systems Designer | 16 Jan 1993←32 Years→Current | Active | |
| Legis Systems Limited Director • Computer Systems Designer | 16 Jan 1992←33 Years→30 Sep 2025 | Dissolved | |
| Interface Logic Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
