| Company | Timeline | Status | |
| G S & R Limited Director • Director | 14 Apr 2022←3 Years→Current | Active | |
| GS Rail Limited Director • Director | 11 Jul 2018←7 Years→Current | Active | |
| G R Rail Limited Director • Railway Engineer | 11 Apr 2013←8 Years→14 Sep 2021 | Dissolved | |
G & S Rankine Limited Director • Rail Engineer | 19 Mar 2009←5 Years→29 Jul 2014 | Dissolved | |
