| Company | Timeline | Status | |
| Holkham Nature Reserve Limited Director • Managing Director | 8 Jul 2021←4 Years→Current | Active | |
| Holkham Foods Limited Director • Unreported | 1 May 2021←4 Years→Current | Active | |
| Holkham Property Company Limited Director • Managing Director | 1 May 2021←4 Years→Current | Active | |
| The Holkham Estates Company Limited Director • Unreported | 1 May 2021←4 Years→Current | Active | |
| Holkham Farming Company Limited Director • Managing Director | 1 May 2021←4 Years→Current | Active | |
| Hector's Housing Limited Director • Unreported | 1 May 2021←4 Years→Current | Active | |
| Holkham Services Limited Director • Managing Director | 6 Mar 2018←7 Years→Current | Active | |
| Holkham Events Limited Director • Managing Director | 6 Mar 2018←7 Years→Current | Active | |
Holkham Walled Garden Director • Managing Director | 6 Mar 2018←2 Years 7 Months→20 Oct 2020 | Dissolved | |
| Holkham Innovations Limited Director • Managing Director | 6 Mar 2018←7 Years→Current | Active | |
