| Company | Timeline | Status | |
| Rothamsted Research Limited Director • Professor | 6 Dec 2019←5 Years→Current | Active | |
| Rothamsted Research Limited Director • Professor | 6 Dec 2019←4 Years→9 Jul 2024 | Active | |
| R M Manning Ltd Director • Director | 22 Jul 2019←6 Years→Current | Active | |
| Palisade Close Management Company Limited Director • Lecturer | 22 Sep 2017←4 Years→18 Jul 2022 | Active | |
| Nuffield Farming Scholarships Trust Director • Lecturer | 22 Nov 2013←6 Years→29 Nov 2019 | Active | |
| L.J.M. Associates Ltd Director • Consultancy Services | 7 Jul 2003←22 Years→Current | Active | |
