| 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  | |
