| WILBRAHAM, Simon Nicholas ACTIVE | Secretary | 28 Dec 2007 | | | | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| CULLEN, Josephine ACTIVE | Director | 28 Nov 2023 | | United Kingdom | October 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE, England |
| LEGGETT, Duncan Neil ACTIVE | Director | 12 Jan 2015 | | United Kingdom | September 1979 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| LLOYD, Catherine Ann ACTIVE | Director | 01 Aug 2025 | | United Kingdom | January 1981 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| MCGOWAN, Ruth Clare ACTIVE | Director | 01 Dec 2025 | | United Kingdom | March 1982 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| MORTON, Stephen Peter ACTIVE | Director | 13 Apr 2026 | | United Kingdom | December 1976 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| ROBERTS, Matthew Edwin ACTIVE | Director | 01 May 2026 | | United Kingdom | September 1974 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| ROSE, Simon Alan ACTIVE | Director | 12 Nov 2018 | | England | October 1966 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| WHITEHOUSE, Alexander Richard ACTIVE | Director | 01 Feb 2015 | | England | July 1969 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| WILKINSON, David ACTIVE | Director | 22 Sep 2020 | | United Kingdom | September 1967 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| BURTON, Denise Patricia RESIGNED | Secretary | 31 Jan 1996 | 31 Aug 2000 | | | 55 Kingston Hill Place, Kingston Hill, Kingston Upon Thames, Surrey, KT2 7QY |
| GARNETT, Gerald Archer RESIGNED | Secretary | | 31 Aug 1993 | | | Southbury Farmhouse, Ruscombe, Berkshire, RG10 9XN |
| HARTREY, Patrick Mark RESIGNED | Secretary | 29 Apr 2006 | 20 Oct 2006 | | | 30 Colham Road, Hillingdon, Middlesex, UB8 3WQ |
| HINES, Christine Anne RESIGNED | Secretary | 04 Jun 2007 | 31 Dec 2007 | | | 33 Sandhills Road, Barnt Green, Birmingham, B45 8NP |
| MARCHANT, Richard Norman RESIGNED | Secretary | | 29 Jan 1997 | | | 60 The Mount, Curdworth, Sutton Coldfield, West Midlands, B76 9HR |
| SCHURCH, Michael John RESIGNED | Secretary | 16 Apr 2004 | 30 Jun 2004 | | | 1 Aldersey Road, Guildford, Surrey, GU1 2ER |
| WATERS, Paul Christopher RESIGNED | Secretary | 20 Oct 2006 | 04 Jun 2007 | | | 37, Avenue Road, Stratford-Upon-Avon, Warwickshire, CV37 6UW, United Kingdom |
| WILBRAHAM, Simon Nicholas RESIGNED | Secretary | 30 Jun 2004 | 29 Apr 2006 | | | 19, Queens Crescent, St. Albans, Hertfordshire, AL4 9QG, United Kingdom |
| WOODMORE, Michael Brian RESIGNED | Secretary | 31 Aug 2000 | 16 Apr 2004 | | | 59 Terrington Hill, Marlow, Buckinghamshire, SL7 2RE |
| ALLNER, Andrew James RESIGNED | Director | 16 Apr 2004 | 13 Jul 2005 | | December 1953 | 9 The Crescent, Barnes, London, SW13 0NN |
| BAKER, Peter RESIGNED | Director | 01 May 1993 | 31 Oct 2000 | United Kingdom | April 1953 | 12 Tallow Road, Brentford, Middlesex, TW8 8EU |
| BEVERIDGE, Howard Paul RESIGNED | Director | 19 Mar 2008 | 31 May 2008 | | November 1960 | Waterloo Cottage, 2 Oxford Road, Thame, Oxfordshire, OX9 2AH |
| BURTON, Denise Patricia RESIGNED | Director | 12 Jul 1999 | 31 Aug 2000 | | September 1959 | 55 Kingston Hill Place, Kingston Hill, Kingston Upon Thames, Surrey, KT2 7QY |
| CARTER, Michael William RESIGNED | Director | 15 Jan 2009 | 31 Dec 2010 | England | November 1956 | Church Farm, House, Dog Lane Ashampstead, Reading, West Berks, RG8 8RT, United Kingdom |
| CLARKE, Jonathan Michael Rushton RESIGNED | Director | 30 Jun 2004 | 31 May 2007 | United Kingdom | December 1960 | 1 Newalls Rise, Wargrave, Berkshire, RG10 8AY |
| CLARKE, Michael Anthony RESIGNED | Director | 13 Sep 2011 | 28 Jan 2013 | England | March 1964 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| COKER, Paul RESIGNED | Director | | 29 Mar 1993 | | July 1938 | Courtlands Nightingales Lane, Chalfont St Giles, Buckinghamshire, HP8 4SL |
| COLLYER, Hannah Ruth RESIGNED | Director | 31 Aug 2021 | 26 Aug 2024 | England | May 1983 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| COOK, Bernard RESIGNED | Director | 01 May 1993 | 05 Jan 1994 | | May 1944 | Flat C 1 Benbow Court, Hammersmith, London, W6 0AT |
| CROSSLEY, Nigel RESIGNED | Director | 09 Jul 2004 | 30 Sep 2007 | England | April 1963 | HP9 |
| DARBY, Gavin John RESIGNED | Director | 04 Feb 2013 | 31 Jan 2019 | England | February 1956 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| DESTE, Ian Howard RESIGNED | Director | 25 Nov 2011 | 12 Jan 2015 | United Kingdom | January 1959 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| DUNCAN, Ian Alexander RESIGNED | Director | | 12 Jul 1999 | United Kingdom | April 1946 | Durham House, Durham Place, London, SW3 4ET |
| EATON, Geoffrey Dennis RESIGNED | Director | 03 Oct 2012 | 04 Feb 2013 | England | August 1958 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| EATON, Geoffrey Dennis RESIGNED | Director | 01 Jul 1993 | 28 Jun 1995 | | August 1958 | 21 Bangalore Street, London, SW15 1QD |
| ERCEYES, Yilmaz RESIGNED | Director | 22 Sep 2020 | 11 Apr 2025 | England | September 1978 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| HANKINSON, David Roger Lindon RESIGNED | Director | | 29 Mar 1993 | | May 1939 | The Brambles Loudwater Lane, Rickmansworth, Hertfordshire, WD3 4HY |
| HARRIS, Brian James RESIGNED | Director | 01 May 1993 | 19 Feb 1996 | | August 1956 | Alderbourne, Black Pond Lane, Farnham Common, Buckinghamshire, SL2 3EN |
| HEPBURN, Jim RESIGNED | Director | 19 Mar 2012 | 05 Apr 2015 | Scotland | June 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| HUGHES, Mark Rivers RESIGNED | Director | 31 Aug 2009 | 25 Mar 2024 | England | July 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| HUNTER, Graham Keith RESIGNED | Director | 01 Feb 2015 | 30 Apr 2017 | England | November 1963 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| HUTCHINGS, Gregory Frederick RESIGNED | Director | | 11 Feb 1998 | England | January 1947 | Spruce Wood Warren Cutting, Kingston Upon Thames, Surrey, KT2 7HS |
| KELLY, Timothy Geoffrey RESIGNED | Director | 18 Mar 2008 | 25 Nov 2011 | England | October 1957 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| LAWSON, Robert RESIGNED | Director | 18 Mar 2008 | 30 Jun 2009 | England | July 1965 | 36 Exeter Road, London, NW2 4SB |
| LEACH, Paul Alan RESIGNED | Director | 02 Mar 2009 | 31 Aug 2009 | United Kingdom | August 1957 | 8, Station Road, Bletchingdon, Kidlington, Oxfordshire, OX5 3DE, United Kingdom |
| MANN, Howard RESIGNED | Director | 01 May 1993 | 26 May 1995 | | March 1947 | 19 Rivermead Court, Marlow, Buckinghamshire, SL7 1SJ |
| MARCHANT, Richard Norman RESIGNED | Director | 27 Apr 1995 | 31 Aug 2000 | | June 1946 | 60 The Mount, Curdworth, Sutton Coldfield, West Midlands, B76 9HR |
| MARTIN, Richard Lister RESIGNED | Director | 22 Sep 2020 | 30 Apr 2026 | England | June 1970 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| MCDONALD, Andrew John RESIGNED | Director | 15 Nov 2011 | 23 May 2018 | England | January 1974 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| MCEVOY, Emmett RESIGNED | Director | 20 Apr 2012 | 12 Jan 2015 | United Kingdom | December 1976 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| MCMAHON, Ian Reid RESIGNED | Director | 20 Jan 2003 | 13 Jul 2005 | | November 1952 | The Gate House, Burfield Road, Old Windsor, Berkshire, SL4 2LH |
| METAXA, Patrick Alexander RESIGNED | Director | | 29 Mar 1993 | | May 1932 | 63 Ridgway Place, London, SW19 4SP |
| METCALFE, Stanley Gordon RESIGNED | Director | | 29 Mar 1993 | United Kingdom | June 1932 | The Oast House Husseys Lane, Lower Froyle, Alton, Hampshire, GU34 4LX |
| MORAN, Mark RESIGNED | Director | 08 Dec 2011 | 30 Sep 2013 | United Kingdom | April 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| MUDDIMER, Robert Michael RESIGNED | Director | | 31 Mar 1996 | England | January 1933 | The Old Vicarage Church Street, Billesdon, Leicester, LE7 9AE |
| MULHALL, Denis Joseph RESIGNED | Director | | 09 Jul 1993 | England | September 1951 | Fitzgeorge House, Fitzgeorge Avenue, New Malden, Surrey, KT3 4SH |
| MURPHY, Thomas Jerome Peter RESIGNED | Director | 19 Apr 2005 | 31 Jul 2006 | | January 1969 | 9 One Tree Lane, Beaconsfield, Buckinghamshire, HP9 2BU |
| MURRAY, Alastair Sholto Neil RESIGNED | Director | 30 Sep 2013 | 30 Aug 2019 | England | December 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| OAKLEY, Christopher Richard RESIGNED | Director | 19 Apr 2005 | 27 May 2005 | England | April 1963 | 26 Long Park, Chesham Bois, Amersham, Buckinghamshire, HP6 5LA |
| PANTER, Alan James, Mr. RESIGNED | Director | 01 Oct 2007 | 02 Apr 2008 | | October 1971 | 14 Thornhill Bridge Wharf, London, N1 0RU |
| PEELER, Andrew Michael RESIGNED | Director | 19 Mar 2008 | 21 Jul 2011 | United Kingdom | January 1963 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| REYNOLDS, Peter William John, Sir RESIGNED | Director | | 28 Apr 1993 | | September 1929 | Rignall Farm Rignall Road, Great Missenden, Buckinghamshire, HP16 9PE |
| RUDDICK, Ian William RESIGNED | Director | 25 Aug 1995 | 31 Mar 2002 | United Kingdom | December 1946 | 32 Woodend Drive, Ascot, Berkshire, SL5 9BG |
| SCHOFIELD, Robert John RESIGNED | Director | 15 Jan 2009 | 13 Sep 2011 | United Kingdom | February 1952 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| SCHOFIELD, Robert John RESIGNED | Director | 31 May 2007 | 02 Jul 2007 | United Kingdom | February 1952 | 32 Thames Edge Court, Clarence Street, Staines, Middlesex, TW18 4SP |
| SCHURCH, Michael John RESIGNED | Director | 01 Aug 2001 | 30 Jun 2004 | United Kingdom | September 1957 | 1 Aldersey Road, Guildford, Surrey, GU1 2ER |
| SMART, James Ramsay RESIGNED | Director | 22 Sep 2010 | 08 Dec 2011 | England | March 1960 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| SMITH, Antony David RESIGNED | Director | 21 Jul 2011 | 20 Apr 2012 | England | September 1974 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| THOMAS, Paul RESIGNED | Director | 31 May 2007 | 31 Aug 2009 | | December 1955 | Gladwyn House 5 Victoria Crescent, Sherwood, Nottingham, Nottinghamshire, NG5 4DA |
| THOMPSON, Paul Roche RESIGNED | Director | 22 Sep 2020 | 13 Apr 2026 | United Kingdom | May 1966 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| VARNEY, John James RESIGNED | Director | 03 Jan 1995 | 31 Dec 1997 | | November 1941 | Spindrift Cottage, Nyetimber Lane, West Chiltington, West Sussex |
| WILKINSON, Paul Nigel RESIGNED | Director | 01 May 1993 | 17 Jan 2003 | United Kingdom | April 1945 | 20 Roehampton Gate, Roehampton, London, SW15 5JS |
| WILLIAMS, Iwan RESIGNED | Director | 14 May 2012 | 31 Dec 2012 | United Kingdom | December 1957 | Premier House, Centrium Business Park, Griffiths Way, St Albans, Hertfordshire, AL1 2RE, United Kingdom |
| WISE, Suzanne Elizabeth RESIGNED | Director | 02 Mar 2009 | 15 Nov 2011 | United Kingdom | January 1962 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |
| WOODMORE, Michael Brian RESIGNED | Director | 01 May 1998 | 16 Apr 2004 | England | November 1943 | 59 Terrington Hill, Marlow, Buckinghamshire, SL7 2RE |
| YORK, Ian RESIGNED | Director | 18 Mar 2008 | 31 Oct 2011 | England | May 1959 | Premier House, Centrium Business Park, Griffiths Way, St. Albans, Hertfordshire, AL1 2RE |