| Company | Timeline | Status | |
| Dynamic Track Solutions Limited Director • Engineer | 26 Oct 2012←8 Months→15 Jul 2013 | Liquidation | |
Walker Rail Consultants Ltd Director • Director | 28 Feb 2012←7 Years→21 May 2019 | Dissolved | |
| Dynamic Track Solutions Limited Director • Engineer | 29 Jul 2011←2 Months→14 Oct 2011 | Liquidation | |
