| Company | Timeline | Status | |
| Wentworth Woodhouse Preservation Trust Director • Estate Owner | 10 Dec 2013←10 Years→6 Dec 2024 | Active | |
| Nene Park Trust Director • Landowner | 15 Jun 2006←4 Years→9 Jun 2011 | Active | |
| Highwood Farms Limited Director • Farmer | 26 Sep 2001←24 Years→Current | Active | |
| Milton(Peterborough)Estates Company, Director • Farmer | 13 Dec 1992←33 Years→Current | Active | |
| Fitzwilliam Land Company (The) Director • Farmer | 13 Dec 1991←34 Years→Current | Active | |
| Nantclwyd Farms Director • Farmer | 14 Nov 1991←7 Years→6 Oct 1999 | Active | |
| BMSS Limited Director • Company Director | 10 Jul 1991←4 Years→11 Jan 1996 | Dissolved | |
