| Company | Timeline | Status | |
Rail Systems & Safety Consulting Ltd Director • Consultant | 26 Jul 2016←9 Months→9 May 2017 | Dissolved | |
| Ketech Systems Limited Director • Managing Director | 3 Nov 2006←6 Months→30 May 2007 | Active | |
| Ketech Group Ltd Director • Managing Director | 2 Nov 2006←6 Months→30 May 2007 | Active | |
