| Company | Timeline | Status | |
| Volkerrail Group Limited Director • Company Director | 15 Mar 2011←13 Years→15 Jul 2024 | Active | |
Granttram Limited Director • Company Director | 30 Nov 2009←8 Years→25 Sep 2018 | Dissolved | |
| Volkerrail Plant Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkerrail Welding Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkerrail Signalling Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkerrail Specialist Businesses Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkerrail Power Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkermatrix Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Volkerrail Limited Director • Company Director | 30 Nov 2009←14 Years→15 Jul 2024 | Active | |
| Lane Management Limited Director • Construction | 24 Nov 2007←18 Years→Current | Active | |
