| Company | Timeline | Status | |
| Lettinga Properties Limited Director • Gm | 14 Mar 2025←8 Months→Current | Active | |
| The Carsington Sailing Club Limited Director • Director | 11 Oct 2012←12 Months→10 Oct 2013 | Active | |
| MTS Scientific UK Limited Director • Unreported | 15 May 2003←22 Years→Current | Active | |
| MTS Cryo Stores UK Limited Director • Director | 15 May 2003←21 Years→30 Sep 2024 | Active | |
| Cool Repair Scientific UK Ltd Director • Engineer | 17 Mar 1998←26 Years→30 Sep 2024 | Active | |
