| HUGHES, Christopher David ACTIVE | Secretary | 28 Nov 2008 | | | | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| HUGHES, Christopher David ACTIVE | Director | 31 Mar 2017 | | United Kingdom | November 1976 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| POWELL, Adam David ACTIVE | Director | 17 Feb 2012 | | United Kingdom | April 1981 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| GILLESPIE, Fiona Margaret RESIGNED | Secretary | 31 Jul 2007 | 28 Nov 2008 | | | 79 Blake Apartments, New River Avenue, London, N8 7QF |
| PENN, David Alfred RESIGNED | Secretary | | 31 Jul 2007 | | | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| DONATIELLO, John Frank RESIGNED | Director | 05 Jan 2018 | 31 Jul 2020 | United States | May 1953 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| EDWARDS, John Ralph RESIGNED | Director | 22 Nov 1999 | 10 May 2002 | United Kingdom | January 1950 | Green Hedges, 25 Saint Johns Street, Crowthorne, Berkshire, RG45 7NJ |
| LILLYCROP, David Peter RESIGNED | Director | | 22 Nov 1999 | | June 1956 | Canal Cottage, Halton Village, Buckinghamshire, HP22 5NS |
| LONG, John George RESIGNED | Director | 21 Oct 2020 | 16 Sep 2022 | England | October 1971 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| NORRIS, Guy Mervyn RESIGNED | Director | 22 Nov 1999 | 31 Jul 2007 | | May 1946 | The Dower House, Church Road Snitterfield, Stratford Upon Avon, CV37 0LF |
| O'BRIEN, Susan Lynn RESIGNED | Director | 31 Jul 2007 | 31 Jul 2008 | | April 1968 | 180 Longfield Lane, Cheshunt, Waltham Cross, Hertfordshire, EN7 6AQ |
| PADDISON, Richard John RESIGNED | Director | 28 Nov 2008 | 31 Mar 2017 | England | July 1952 | Lindum, 2 Hilton Road Bramhall, Stockport, Cheshire, SK7 3AG |
| PENN, David Alfred RESIGNED | Director | 21 Jan 2005 | 28 Nov 2008 | England | February 1958 | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| SAUNDERS, Denis RESIGNED | Director | | 31 Oct 1997 | | April 1934 | Lime Tree House 3 Tapster Court, Bushwood Lane, Lapworth, Warwickshire, B94 5PJ |
| SHARMAN, Robert John RESIGNED | Director | 19 Sep 2022 | 13 Mar 2025 | United Kingdom | October 1977 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU, United Kingdom |
| TALLENTIRE, David Hugh RESIGNED | Director | 31 Mar 2017 | 05 Jan 2018 | United Kingdom | February 1966 | Buckingham House 361-366, Buckingham Avenue, Slough, Berkshire, SL1 4LU |
| TEMPLETON, Kenneth Nelson RESIGNED | Director | | 22 Nov 1999 | United Kingdom | May 1939 | Orchard Grange, The Street Brightwell-Cum-Sotwell, Wallingford, Oxfordshire, OX10 0RX |
| WALKER, Denis RESIGNED | Director | | 15 Aug 1993 | | June 1956 | 28 Lionel Street, Burnley, Lancashire, BB12 6DY |
| WHITING, David Michael RESIGNED | Director | 28 Nov 2008 | 17 Feb 2012 | England | May 1975 | 3, Walnut Grove, Wooburn Green, High Wycombe, Buckinghamshire, HP10 0AL, United Kingdom |