| Company | Timeline | Status | |
| Alarm Rail Systems Limited Director • Director | 6 Aug 2019←1 Year 9 Months→25 May 2021 | Dissolved | |
| S Richardson Railways Limited Director • Unreported | 16 Apr 2018←7 Years→Current | Active | |
S & KR Technical Limited Director • Track Worker | 5 Jul 2013←1 Year 9 Months→5 Apr 2015 | Dissolved | |
