| MEDINI, Lynne Samatha ACTIVE | Secretary | 22 Feb 2012 | | | | Westside 1, London Road, Hemel Hempstead, HP3 9TD, United Kingdom |
| COOK, Andrew ACTIVE | Director | 29 May 2020 | | United Kingdom | March 1963 | Westside 1, London Road, Hemel Hempstead, HP3 9TD, United Kingdom |
| MEDINI, Lynne Samantha ACTIVE | Director | 17 Apr 2023 | | England | November 1967 | Westside 1, London Road, Hemel Hempstead, HP3 9TD, United Kingdom |
| ANDERSON, Charles Adair RESIGNED | Secretary | | 28 Sep 2001 | | | Ravensheugh, Selkirk, TD7 5LS |
| BRAMALL, Helen Mary RESIGNED | Secretary | 15 May 2008 | 22 Feb 2012 | | | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| GRIFFITHS, David RESIGNED | Secretary | 28 Sep 2001 | 02 Apr 2004 | | | 17 Cransley Grove, Solihull, West Midlands, B91 3ZA |
| JONES, Gavin Stewart RESIGNED | Secretary | 07 Aug 2006 | 15 May 2008 | | | 25 The Drive, Henleaze, Bristol, Avon, BS9 4LD |
| SELBER, Kimberley Lynn RESIGNED | Secretary | 18 Aug 2004 | 03 Aug 2006 | | | 1 Bellevue Road, Barnes, London, SW13 0BJ |
| THOMPSON, Nicholas Raymond RESIGNED | Secretary | 02 Apr 2004 | 18 Aug 2004 | | | 4, Eynella Road, East Dulwich, London, SE10 8HR, United Kingdom |
| ANDERSON, Charles Adair RESIGNED | Director | 19 Apr 1996 | 06 Jun 1996 | United Kingdom | October 1946 | Ravensheugh, Selkirk, TD7 5LS |
| ASHBY, Timothy John RESIGNED | Director | 15 Aug 2011 | 24 Jul 2015 | Great Britain | May 1962 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| BENNETT, James Douglas Scott RESIGNED | Director | | 31 Jul 1999 | | March 1942 | The Well House, 3 Easter Belmont Road, Edinburgh, EH12 6EX |
| BERKMEN, Gillian RESIGNED | Director | 31 Jan 2009 | 20 Jan 2012 | Gb | March 1960 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| BLACK, Robert RESIGNED | Director | | 31 Dec 1992 | | October 1935 | The Coach House 1 Templars Cramond, Edinburgh, EH4 6BY |
| BRIDGE, Jude Claire RESIGNED | Director | 15 Feb 2013 | 20 Sep 2013 | Uk | December 1961 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| CALLAGHAN, Iain Mills RESIGNED | Director | 01 Jan 1997 | 28 Sep 2001 | | July 1947 | 10 Kings Cramond, Gamekeepers Road, Edinburgh, Midlothian, EH4 6RL |
| CALVER, Simon John RESIGNED | Director | 15 Feb 2013 | 28 Mar 2014 | England | July 1964 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| CULL, Christopher Jeremy RESIGNED | Director | 15 Feb 2013 | 11 Apr 2016 | United Kingdom | June 1960 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| DAVIS, Fiona RESIGNED | Director | 16 Oct 2001 | 02 Apr 2004 | | August 1959 | Orchard House, 58 Haw Lane, Bledlow Ridge, Buckinghamshire, HP14 4JJ |
| DAYRAUD, Philippe Jean Camille RESIGNED | Director | 15 Feb 2013 | 15 Dec 2014 | France | December 1962 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| DORKIN, Sue RESIGNED | Director | 16 Oct 2001 | 02 Apr 2004 | | March 1961 | 17 Hervines Court, Amersham, Buckinghamshire, HP6 5HH |
| DOYLE, Karl Andrew RESIGNED | Director | 02 Apr 2015 | 28 Feb 2017 | England | May 1968 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| ELLIS, Peter Malcolm RESIGNED | Director | 28 Sep 2001 | 02 Apr 2004 | | March 1954 | The Orchard, Old Forge, Ewen, Cirencester, Gloucestershire, GL7 6BU |
| FRANCE, Michael Bernard Anthony RESIGNED | Director | 28 Sep 2001 | 02 Apr 2004 | United Kingdom | May 1956 | Ford Cottage Sandpit Lane, Bledlow, Princess Risborough, Buckinghamshire, HP27 9QL |
| GODDARD, John RESIGNED | Director | 16 Oct 2001 | 02 Apr 2004 | | April 1951 | The Barn Back Street, Ashton Keynes, Cirencester, SN6 6PD |
| GRAHAM, Colin RESIGNED | Director | 16 Oct 2001 | 31 Mar 2003 | England | January 1964 | Michaelmas Cottage, Park Road, Hook Norton, Oxfordshire, OX15 5PY |
| GRIFFITHS, David RESIGNED | Director | 28 Sep 2001 | 02 Apr 2004 | | February 1960 | 17 Cransley Grove, Solihull, West Midlands, B91 3ZA |
| HARRINGTON, Neil Simon RESIGNED | Director | 05 Feb 2008 | 20 Jul 2012 | England | August 1963 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| HOMER, Kirsty Rowena RESIGNED | Director | 07 Jul 2017 | 29 May 2020 | United Kingdom | October 1974 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| HUGHES, William Glyn Lawrence RESIGNED | Director | 01 Dec 2017 | 30 Jun 2020 | England | March 1976 | C/O Prism Cosec, Elder House, St Georges Business Park, 207 Brooklands Road, Weybridge, Surrey, KT13 0TS, United Kingdom |
| JENKINSON, Dermot Julian RESIGNED | Director | | 30 Apr 1999 | Scotland | December 1954 | Mersington House, Greenlaw, Duns, Berwickshire, TD10 6UL |
| JONES, Gavin Stewart RESIGNED | Director | 07 Aug 2006 | 15 May 2008 | England | May 1970 | 25 The Drive, Henleaze, Bristol, Avon, BS9 4LD |
| KIBBLE, Gary RESIGNED | Director | 09 Mar 2015 | 02 Jun 2017 | United Kingdom | December 1971 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| KLOSTER, Anders RESIGNED | Director | 26 Jun 2012 | 31 Dec 2014 | United Kingdom | January 1964 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| LAVELLE, Dominic Joseph RESIGNED | Director | 20 Jul 2012 | 01 Mar 2013 | United Kingdom | February 1963 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| LEE, Caroline Mary RESIGNED | Director | 31 Jan 2008 | 31 Jan 2009 | England | June 1956 | 58 Kenilworth Avenue, London, SW19 7LW |
| LOGUE, Michael RESIGNED | Director | 15 Aug 2011 | 08 Feb 2013 | United Kingdom | May 1972 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| MACKAY, David James RESIGNED | Director | | 28 Sep 2001 | Scotland | May 1943 | 4 East Harbour Road, Charlestown, Fife, KY11 3EA |
| NEWTON-JONES, Mark RESIGNED | Director | 03 Dec 2018 | 23 Jul 2020 | England | May 1967 | Westside 1, London Road, Hemel Hempstead, HP3 9TD, United Kingdom |
| NEWTON-JONES, Mark RESIGNED | Director | 04 Aug 2014 | 04 Apr 2018 | England | May 1967 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| NOEL-PATON, Frederick Ranald, The Hon RESIGNED | Director | | 15 Oct 1997 | | November 1938 | Easter Dunbarnie, Bridge Of Earn, Perth, Perthshire, PH2 9ED |
| PALMER, Louise Ann RESIGNED | Director | 15 Feb 2013 | 21 Oct 2014 | England | January 1968 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| PURKIS, Sarah RESIGNED | Director | 23 Mar 2015 | 29 Jul 2016 | United Kingdom | June 1970 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| ROBERTSON, Nigel Mark Inches RESIGNED | Director | 02 Apr 2004 | 31 Jan 2008 | | November 1959 | Ashworth House, Westonbirt, Tetbury, Gloucestershire, GL8 8QJ |
| ROBINSON, Stephen Joseph RESIGNED | Director | 31 Dec 1992 | 01 May 1998 | | July 1947 | 28 Heriot Row, Edinburgh, EH3 6EN |
| RUSLING, Kevin Jonathan RESIGNED | Director | 05 Apr 2017 | 17 Apr 2023 | England | June 1977 | Westside 1, London Road, Hemel Hempstead, HP3 9TD, United Kingdom |
| SAUNTER, Charles William RESIGNED | Director | 16 Oct 2001 | 02 Apr 2004 | | November 1954 | 165 High Street, Wootton Bassett, Swindon, SN4 7BT |
| SELBER, Kimberley Lynn RESIGNED | Director | 01 Nov 2004 | 03 Aug 2006 | | January 1961 | 1 Bellevue Road, Barnes, London, SW13 0BJ |
| SMITH, Martyn Robert RESIGNED | Director | 05 Jul 1999 | 28 Sep 2001 | | May 1955 | 4 Carlton Street, Stockbridge, Edinburgh, EH4 1NJ, Scotland |
| SMITH, Matthew George RESIGNED | Director | 25 Mar 2013 | 20 Jan 2015 | United Kingdom | May 1971 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| SMOTHERS, Richard RESIGNED | Director | 23 Mar 2015 | 01 Dec 2017 | United Kingdom | July 1967 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| STRINGER, Matthew Jackson RESIGNED | Director | 25 Mar 2013 | 28 Sep 2018 | United Kingdom | March 1967 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| TALISMAN, Daniel RESIGNED | Director | 14 Jan 2016 | 04 Aug 2017 | Great Britain | December 1973 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |
| WATERSTONE, Timothy John Stuart RESIGNED | Director | 02 Apr 2004 | 19 Jun 2007 | | May 1939 | 64 Portland Road, London, W11 4LQ |
| WILSON, Ian David RESIGNED | Director | | 08 Sep 1995 | | March 1928 | Avon Farm House, Stratford Sub Castle, Salisbury, Wiltshire, SP4 6AE |
| WOOD, David Bernard RESIGNED | Director | 04 Apr 2018 | 21 Nov 2018 | United Kingdom | December 1969 | Cherry Tree Road, Watford, Hertfordshire, WD24 6SH |