| P&R MANAGEMENT SERVICES (UK) LTD ACTIVE | Secretary | 01 Sep 2024 | | | | Mcabold House, 74 Drury Lane, Houghton Regis, Dunstable, LU5 5ED, England |
| BRIMLEY, Philip Robert ACTIVE | Director | 15 Feb 2022 | | England | October 1983 | Estate Office, The Melon Ground, Hatfield Park, Hatfield, Hertfordshire, AL9 5NB, England |
| DAVIES, Peter Gordon ACTIVE | Director | 21 Apr 2026 | | United Kingdom | July 1969 | Mcabold House, 74 Drury Lane, Houghton Regis, Dunstable, LU5 5ED, England |
| DONATANTONIO, Paul Vincent ACTIVE | Director | 21 Apr 2026 | | United Kingdom | July 1960 | Mcabold House, 74 Drury Lane, Houghton Regis, Dunstable, LU5 5ED, England |
| RAYNER, James Benjamin ACTIVE | Director | 10 Nov 2025 | | England | August 1977 | Mcabold House, 74 Drury Lane, Houghton Regis, Dunstable, LU5 5ED, England |
| ARNOLD, Andrew Martyn Giles RESIGNED | Secretary | 31 Jan 1995 | 01 Dec 2000 | | | Sawmill Cottage, Hatfield Park, Hatfield, Hertfordshire, AL9 5PG |
| FARRAR, Jane RESIGNED | Secretary | 19 Nov 2010 | 21 Jan 2013 | | | Hatfield Park Estate Office, Hatfield Park, Hatfield, Hertfordshire, AL9 5NQ, United Kingdom |
| FAUVEL, Gavin Charles William RESIGNED | Secretary | 01 Dec 2000 | 07 Feb 2003 | | | Sawmill Cottage, Hatfield Park, Hatfield, Hertfordshire, AL9 5PG |
| KINGSLEY, John Howard Cleeve RESIGNED | Secretary | 23 Jul 2007 | 19 Nov 2010 | | | 108 Cranbrook Road, Chiswick, London, W4 2LJ |
| MUIR, Crispin John Grainger RESIGNED | Secretary | 07 Feb 2003 | 15 Sep 2003 | | | Woodhall Farmhouse, Mill Green, Hatfield, Hertfordshire, AL9 5NU |
| O'LONE, Marcus James RESIGNED | Secretary | | 31 Jan 1995 | | | Hornetts Hall West End, Hatfield, Herts, AL5 5RQ |
| PARRY BROWN, Kenneth Alan RESIGNED | Secretary | 15 Sep 2003 | 22 Jun 2007 | | | Rose Cottage, The Causeway Peasenhall, Saxmundham, Suffolk, IP17 2HU |
| RUTT, Sarah Jane RESIGNED | Secretary | 21 Jan 2013 | 20 Dec 2019 | | | Hatfield Park Estate Office, Hatfield Park, Hatfield, Hertfordshire, AL9 5NF, England |
| ARNOLD, Andrew Martyn Giles RESIGNED | Director | 31 Jan 1995 | 01 Dec 2000 | | December 1964 | Sawmill Cottage, Hatfield Park, Hatfield, Hertfordshire, AL9 5PG |
| CLEGG, Peter William James RESIGNED | Director | 31 Mar 2011 | 19 Oct 2016 | England | April 1963 | Hatfield Park Estate Office, Hatfield Park, Hatfield, Hertfordshire, AL9 5NQ, United Kingdom |
| DOWNS, Anthony Robert RESIGNED | Director | 15 Feb 2022 | 28 Nov 2025 | England | November 1969 | Estate Office, The Melon Ground, Hatfield Park, Hatfield, Hertfordshire, AL9 5NB, England |
| FAUVEL, Gavin Charles William RESIGNED | Director | 01 Dec 2000 | 07 Feb 2003 | | November 1972 | Sawmill Cottage, Hatfield Park, Hatfield, Hertfordshire, AL9 5PG |
| HORTON-FAWKES, David Hawksworth RESIGNED | Director | 20 Dec 2019 | 15 Feb 2022 | England | March 1964 | 22, Charing Cross Road, London, WC2H 0HS, England |
| KINGSLEY, John Howard Cleeve RESIGNED | Director | 23 Mar 1992 | 31 Mar 2011 | England | July 1946 | 108 Cranbrook Road, Chiswick, London, W4 2LJ |
| MELVILLE, Michael Rowland RESIGNED | Director | | 23 Mar 1992 | | August 1941 | Deep Well House, Great Chishill, Royston, Cambridgeshire, SG8 8SA |
| MUIR, Crispin John Grainger RESIGNED | Director | 07 Feb 2003 | 15 Sep 2003 | | May 1961 | Woodhall Farmhouse, Mill Green, Hatfield, Hertfordshire, AL9 5NU |
| O'LONE, Marcus James RESIGNED | Director | | 31 Jan 1995 | | November 1953 | Hornetts Hall West End, Hatfield, Herts, AL5 5RQ |
| RATHBONE, Mary RESIGNED | Director | 25 Sep 2014 | 21 Apr 2026 | England | June 1952 | 12a Park Close Hatfield, Park Close, Hatfield, Hertfordshire, AL9 5AY, England |
| REBEIRO, Paul Edward RESIGNED | Director | 04 Nov 2003 | 02 Feb 2012 | England | February 1958 | 5, Carrs Meadow, Escrick, Yorkshire, YO19 6JZ, Great Britain |
| RUTT, Sarah Jane RESIGNED | Director | 19 Oct 2016 | 20 Dec 2019 | United Kingdom | April 1980 | 22, Chancery Lane, London, WC2A 1LS |