| ROGERS, Wendy Fiona ACTIVE | Secretary | 10 Mar 2016 | | | | Second Floor, Arena Court, Crown Lane, Maidenhead, Berkshire, SL6 8QZ, England |
| BENNING-PRINCE, Nicholas Arthur Dawe, Mr. ACTIVE | Director | 09 Feb 2015 | | England | October 1974 | Second Floor, Arena Court, Crown Lane, Maidenhead, Berkshire, SL6 8QZ, England |
| DOWLEY, Robert Charles ACTIVE | Director | 09 Feb 2015 | | England | September 1972 | Second Floor, Arena Court, Crown Lane, Maidenhead, Berkshire, SL6 8QZ, England |
| GRETTON, Edward Alexander ACTIVE | Director | 28 Mar 2013 | | England | July 1970 | Second Floor, Arena Court, Crown Lane, Maidenhead, Berkshire, SL6 8QZ, England |
| QUILEZ SOMOLINOS, Alfredo ACTIVE | Director | 06 Sep 2021 | | England | July 1967 | Second Floor, Arena Court, Crown Lane, Maidenhead, Berkshire, SL6 8QZ, England |
| DRANSFIELD, Graham RESIGNED | Secretary | 10 Dec 2007 | 30 Jun 2008 | | | 18, Downs Hill, Beckenham, Kent, BR3 5HB |
| FINLAYSON, Alan John RESIGNED | Secretary | 07 Jun 1994 | 20 Nov 1995 | | | 33 Bookstone Terrace, Edinburgh, EH10 6QB |
| LUCKAS, Alistair Rawson RESIGNED | Secretary | 09 Apr 2003 | 02 Dec 2005 | | | 3 Merrydown Way, Chislehurst, Kent, BR7 5RS |
| MOORE, Alexander Eric RESIGNED | Secretary | | 07 Jun 1994 | | | Crismill Barn Crismill Lane, Bearsted, Maidstone, Kent, ME14 4NT |
| MUMFORD, Samantha Sarah Louise RESIGNED | Secretary | 12 Nov 2001 | 09 Apr 2003 | | | 47 Cranbrook Road, Redland, Bristol, BS6 7BP |
| PLUMB, David RESIGNED | Secretary | 29 Feb 2000 | 12 Nov 2001 | | | Grove Cottage, Street End Lane Blagdon, Bristol, Avon, BS40 7TW |
| SMITH, Peter John RESIGNED | Secretary | 12 Dec 1995 | 31 Dec 1999 | | | Kertonwood, Clink Road, Frome, Somerset, BA11 2EQ |
| TUNNACLIFFE, Paul Derek RESIGNED | Secretary | 23 Nov 2005 | 10 Dec 2007 | | | 6 Ashburnham Park, Esher, Surrey, KT10 9TW |
| TYSON, Roger Thomas Virley RESIGNED | Secretary | 31 Jul 2008 | 10 Mar 2016 | | | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| BARTLES-SMITH, Allan Rex RESIGNED | Director | 12 Dec 1995 | 01 Jan 1997 | | May 1939 | Beech Leaves 57 Ledborough Lane, Beaconsfield, Buckinghamshire, HP9 2DB |
| BAXTER, David RESIGNED | Director | 19 Jun 1996 | 24 Feb 1998 | | October 1952 | 4 The Hunt Lodge, Melbourne Road, Staunton Harold, Leicestershire, LE65 1RU |
| CLARKE, David Jonathan RESIGNED | Director | 12 Sep 2013 | 01 Dec 2016 | England | February 1974 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| CLAYDON, James Alexander RESIGNED | Director | 01 May 2008 | 30 Apr 2010 | England | July 1960 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| CLAYDON, James Alexander RESIGNED | Director | 01 Mar 2006 | 14 Aug 2006 | England | July 1960 | Walthurst Farmhouse, Wephurst Park Skiff Lane, Wisborough Green, West Sussex, RH14 0AD |
| CORKERY, Thomas John RESIGNED | Director | 01 Nov 2004 | 31 Dec 2005 | | April 1962 | Kennels Cottage, Upper Street, Stratford St Mary, Suffolk, CO7 6JH |
| CROSS, Ian Paul RESIGNED | Director | 01 Nov 2004 | 30 Oct 2009 | England | April 1959 | 20 Meteor Road, Kate Road Wood, West Malling, Kent, ME19 4TH |
| DEERING, Peter Richard RESIGNED | Director | 12 Nov 2001 | 22 Oct 2004 | | November 1957 | Crit Hall Cottage, Cranbrook Road, Benenden, Kent, TN17 4EU |
| DENNETT, Barry RESIGNED | Director | 19 Feb 1999 | 31 Dec 2004 | | July 1947 | Cotes, 1a Coldeast Way, Sarisbury Green, Southampton, Hampshire, SO31 7AT |
| DOODY, Robin John RESIGNED | Director | 27 Jul 2011 | 28 Mar 2013 | England | February 1975 | Cemex House, Coldharbour Lane, Thorpe, Egham, Surrey, TW20 8TD, England |
| FERNLEY, Simon Roger RESIGNED | Director | 05 Dec 1997 | 28 Sep 2001 | England | March 1950 | The Coach House, Manor Drive Bathford, Bath, BA1 7TY |
| FINLAYSON, Alan John RESIGNED | Director | 07 Jun 1994 | 20 Nov 1995 | | April 1945 | 33 Bookstone Terrace, Edinburgh, EH10 6QB |
| GLASSON, Graham Henderson, Mr. RESIGNED | Director | 30 Apr 2010 | 28 Feb 2014 | England | November 1965 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| HALLING, Michael John RESIGNED | Director | 12 Dec 1995 | 01 Jan 1997 | | May 1947 | Buttermilk Hall, Baldock Road Cottered, Buntingford, Hertfordshire, SG9 9RH |
| HARRIS, Duncan Ian RESIGNED | Director | 14 Aug 2006 | 01 Jan 2007 | | December 1973 | Flat 4, 3 Warwick Terrace, Leamington Spa, Warwickshire, CV32 5NT |
| HARRISON, Stephen Richard RESIGNED | Director | 30 Apr 2010 | 28 Feb 2014 | United Kingdom | February 1968 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| HOCKLIFFE, Robert John RESIGNED | Director | | 31 Dec 1998 | | September 1936 | Elm Trees, Hillside Drive, Gravesend, Kent, DA12 1NY |
| HOPKINS, John Kenneth RESIGNED | Director | 05 Jun 2002 | 01 Jan 2004 | United Kingdom | August 1944 | Hill Top Farm, Rigton Hill, North Rigton, Leeds, West Yorkshire, LS17 0DJ |
| HORNBY, Fiona Louise RESIGNED | Director | 01 Mar 2014 | 05 Jan 2015 | England | October 1982 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| HUTCHINS, Philip John RESIGNED | Director | 30 Dec 2000 | 01 Mar 2003 | England | June 1953 | 9 Crosslands, Congleton, Cheshire, CW12 3UA |
| KEIGHLEY, John Stuart RESIGNED | Director | 01 Mar 2009 | 28 Mar 2013 | United Kingdom | December 1957 | Cemex House, Coldharbour Lane, Egham, Surrey, TW20 8TD |
| LAST, Terence Robert RESIGNED | Director | 01 Jan 1997 | 29 Aug 1997 | England | July 1950 | Groton Farm, Church Street, Groton, Sudbury, Suffolk, CO10 5EH, United Kingdom |
| LEESE, Christopher Arthur RESIGNED | Director | 01 Mar 2003 | 30 Nov 2007 | England | June 1961 | Kingsclere, Aston Road, Chipping Campden, Gloucestershire, GL55 6HR |
| LOPEZ, Juan Ramon RESIGNED | Director | 30 Nov 2007 | 28 Mar 2013 | United Kingdom | October 1968 | Cemex House, Coldharbour Lane, Egham, Surrey, TW20 8TD |
| MASTER, Michael RESIGNED | Director | | 01 Jan 2005 | England | June 1946 | 2 Shrubbery Grove, Royston, Hertfordshire, SG8 9LJ |
| MOORE, Alexander Eric RESIGNED | Director | | 07 Jun 1994 | England | November 1945 | Crismill Barn Crismill Lane, Bearsted, Maidstone, Kent, ME14 4NT |
| NAPIER, James Stuart RESIGNED | Director | 31 Dec 2005 | 30 Nov 2007 | United Kingdom | June 1969 | 25 Hallside Park, Knutsford, Cheshire, WA16 8NQ |
| NEAVE, David Sidney RESIGNED | Director | 01 Jan 1997 | 01 Nov 2004 | | May 1949 | The Grange, Aston On Carrant, Tewkesbury, Gloucestershire, GL20 8HL |
| ORNSBY, John Sidney RESIGNED | Director | | 12 Dec 1995 | | October 1936 | Northfield House Northfield Place, Weybridge, Surrey, KT13 0RF |
| OWEN, Precel James RESIGNED | Director | | 12 Dec 1995 | | February 1930 | Soar Hill, Newport, Dyfed, SA42 0QL |
| PIRINCCIOGLU, Seyda RESIGNED | Director | 28 Mar 2013 | 31 Aug 2013 | England | May 1971 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| REDMOND, Phillip Keith RESIGNED | Director | 01 Mar 2014 | 09 Feb 2015 | Wales | December 1966 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| RUSSELL, Simon John RESIGNED | Director | 12 Dec 1995 | 19 Jun 1996 | | June 1951 | Hill Croft Hartley Road, Cranbrook, Kent, TN17 3QP |
| SAMUEL, Robert Henry, Mr RESIGNED | Director | 01 Jan 1997 | 30 Dec 2000 | United Kingdom | March 1943 | Highlands The Spinney, Bassett, Southampton, Hampshire, SO16 7FW |
| SMITH, Peter John RESIGNED | Director | 12 Dec 1995 | 01 Jan 1997 | | May 1937 | Kertonwood, Clink Road, Frome, Somerset, BA11 2EQ |
| STUBBS, Charles Andrew RESIGNED | Director | 09 Jun 2008 | 30 Apr 2012 | England | October 1952 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| TAYLOR, John Robert RESIGNED | Director | 31 Dec 2005 | 31 Oct 2007 | | April 1949 | 25 Eghams Wood Road, Beaconsfield, Buckinghamshire, HP9 1JU |
| THOMPSON, Ian David RESIGNED | Director | 01 Jan 2007 | 04 Apr 2008 | | October 1954 | Flat 14, 1 Neptune Way, Southampton, Hampshire, SO14 3FN |
| UREN, John Michael Leal RESIGNED | Director | | 20 Nov 1995 | England | September 1923 | Priory Farm, Appledore Road, Tenterden, Kent, TN30 7DD |
| WELBURN, Dean RESIGNED | Director | 31 Oct 2009 | 27 Jul 2011 | England | August 1960 | Cemex House, Coldharbour Lane, Egham, Surrey, TW20 8TD |
| WELBURN, Dean RESIGNED | Director | 31 Oct 2007 | 01 Mar 2009 | | August 1960 | 78 Beswick Gardens, Rugby, Warwickshire, CV22 7PR |
| WENDT, Carsten Matthias, Dr RESIGNED | Director | 01 Dec 2016 | 06 Sep 2021 | Germany | June 1976 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| WHITELAW, James Stuart RESIGNED | Director | 01 Mar 2014 | 09 Feb 2015 | England | August 1972 | Hanson House, 14 Castle Hill, Maidenhead, SL6 4JJ |
| WILD, Matthew James RESIGNED | Director | 30 Nov 2007 | 31 Oct 2009 | England | May 1971 | 2, Primrose Way, Sandhurst, Berkshire, GU47 8PL |
| WILSON, Stanley Kenneth RESIGNED | Director | 24 Feb 1998 | 31 Oct 2001 | | August 1942 | Adelie Cottage, Oldford, Frome, BA11 2NF |