| Company | Timeline | Status | |
RDS (Lydney) Limited Director • Director | 2 Sep 2016←2 Years 3 Months→11 Dec 2018 | Dissolved | |
| Race Data UK Limited Director • Director | 27 Nov 2013←11 Years→Current | Active | |
| Simpson Motorsport Ltd Secretary • Unreported | 1 Oct 2003←12 Years→1 Nov 2015 | Active | |
| Simpson Motorsport Ltd Director • Engineer | 22 Apr 2003←12 Years→1 Nov 2015 | Active | |
