| SMITH, Michelle ACTIVE | Secretary | 01 Oct 2025 | | | | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| HASSALL, Natasha Jane Dinah ACTIVE | Director | 31 Mar 2023 | | United Kingdom | July 1968 | 6, Worcester Street, Oxford, OX1 2BX, England |
| PLEYDELL BOUVERIE, Peter John, The Honourable ACTIVE | Director | 18 Mar 2002 | | United Kingdom | January 1958 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| PLEYDELL-BOUVERIE (KNOWN AS VISCOUNT FOLKESTONE), Jacob, The Hon ACTIVE | Director | 06 Dec 2023 | | United Kingdom | April 1999 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED, United Kingdom |
| PLEYDELL-BOUVERIE (THE 9TH EARL OF RADNOR), William, The Hon Viscount ACTIVE | Director | | | United Kingdom | January 1955 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| RADNOR, Auriol Melissa, Countess ACTIVE | Director | 12 Dec 2025 | | England | February 1967 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| KELLMAN, John Revill RESIGNED | Secretary | | 04 Dec 1995 | | | Roding Firs Road, Alderbury, Salisbury, Wiltshire, SP5 3BD |
| PRICE, Karen RESIGNED | Secretary | 04 Dec 1995 | 30 Sep 2025 | | | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| JONES-PERROTT, Alasdair RESIGNED | Director | 30 Jun 2014 | 17 May 2018 | England | October 1975 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| LAING, Susan Anne RESIGNED | Director | 12 May 2000 | 31 Mar 2023 | England | March 1954 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| LOUP, Michael Douglas Trollope RESIGNED | Director | | 31 May 1994 | | May 1929 | Flat F 61 Eaton Square, London, SW1W 9BG |
| PLEYDELL-BOUVERIE, Jacob, The Hon RESIGNED | Director | 06 Dec 2023 | 06 Dec 2023 | United Kingdom | April 1999 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |
| PLEYDELL-BOUVERIE, Reuben, The Hon RESIGNED | Director | | 18 Mar 2002 | | December 1930 | Bleak House, Top Road, Slindon, West Sussex, BN18 0RP |
| RADCLIFFE, Bryan Anthony Joseph RESIGNED | Director | 31 May 1994 | 12 May 2000 | | February 1941 | 24 Abbotsbury Close, London, W14 8EG |
| THE EIGHTH EARL OF RADNOR, Jacob RESIGNED | Director | | 11 Aug 2008 | | November 1927 | Longford Castle, Longford Park, Bodenham, Salisbury, Wiltshire, SP5 4EF |
| WHALLEY, Christopher Robert RESIGNED | Director | | 30 Jun 2014 | England | March 1950 | Estate Office, Longford Castle, Salisbury, Wilts, SP5 4ED |