| Company | Timeline | Status | |
| Rattler Rail Ltd Director • Principal Engineer | 25 May 2022←3 Years→Current | Active | |
| Evolution Rail Ltd Director • Principal Consultant | 26 Jun 2020←1 Year 2 Months→7 Sep 2021 | Dissolved | |
| GSP Design Engineering Limited Director • Transmission Design Engineer | 13 Jul 2012←13 Years→Current | Liquidation | |
