| Company | Timeline | Status | |
| Lner Limited Secretary • Scientist | 22 May 2008←5 Years→13 Aug 2013 | Active | |
| Great Central Railway (Nottingham) Limited Secretary • Scientist | 22 May 2008←5 Years→13 Aug 2013 | Active | |
| Nottingham Transport Heritage Centre Limited Secretary • Scientist | 22 May 2008←5 Years→13 Aug 2013 | Active | |
London & North Eastern Railway Company Limited Secretary • Scientist | 22 May 2008←5 Years→13 Aug 2013 | Dissolved | |
