| Company | Timeline | Status | |
| Truck Train Developments Limited Director • Consultant | 6 Jul 1998←5 Years→4 Mar 2004 | Active | |
| Railview Limited Director • Research Consultant | 24 Oct 1996←28 Years→14 Oct 2025 | Dissolved | |
| Railview Limited Secretary • Research Consultant | 24 Oct 1996←28 Years→14 Oct 2025 | Dissolved | |
