| Company | Timeline | Status | |
| McLaren Past Personnel Association Director • Director | 4 Nov 2024←1 Year→Current | Active | |
| Aether Vehicle Technologies Ltd Director • Mechanical Engineer | 18 May 2023←2 Years 5 Months→Current | Active | |
| Chronos Creative Capital Ltd Director • Mechanical Engineer | 17 May 2023←2 Years 5 Months→Current | Active | |
| 4four Associates Ltd Director • Mechanical Engineer | 26 Apr 2022←3 Years→26 Aug 2025 | Dissolved | |
B3 Technologies Limited Director • Engineer | 21 May 2008←7 Years→2 Jun 2015 | Dissolved | |
Matthew Jeffreys Consulting Limited Director • Mechanical Engineer | 19 May 2006←14 Years→13 Oct 2020 | Dissolved | |
