| Company | Timeline | Status | |
| Volkerhighways Limited Director • Company Director | 26 Jan 2017←5 Years→11 May 2022 | Active | |
| Volkerinfra Limited Director • Company Director | 19 Jun 2012←4 Years→26 Jan 2017 | Active | |
| Volkerstevin Infrastructure Limited Director • Company Director | 9 Dec 2011←5 Years→26 Jan 2017 | Active | |
M'Carta Energy Limited Director • Company Director | 9 Dec 2011←1 Month→26 Jan 2012 | Dissolved | |
| Volkerstevin Specialist Businesses Limited Director • Company Director | 12 Feb 2010←2 Years 7 Months→26 Sep 2012 | Active | |
| Volkerstevin Limited Director • Company Director | 12 Feb 2010←2 Years 7 Months→26 Sep 2012 | Active | |
| Volkerbrooks Limited Director • Company Director | 12 Feb 2010←2 Years 7 Months→26 Sep 2012 | Active | |
