| PEEL, Martin ACTIVE | Secretary | 25 Sep 2018 | | | | Puerorum House, 26 Great Queen Street, London, WC2B 5BL, England |
| BROWN, Andrew Alan ACTIVE | Director | 27 Oct 2017 | | England | January 1964 | Puerorum House, 26 Great Queen Street, London, WC2B 5BL, England |
| CAMUS, Paul ACTIVE | Director | 12 Dec 2024 | | England | January 1964 | Ingram House, 6 Meridian Way, Norwich, NR7 0TA, England |
| HAZELL, Timothy Bernard ACTIVE | Director | 30 Jul 2013 | | England | September 1961 | Ingram House, 6 Meridian Way, Norwich, NR7 0TA, England |
| MELVILLE, Lucy Jane ACTIVE | Director | 04 Jan 2026 | | England | July 1977 | Ingram House, 6 Meridian Way, Norwich, NR7 0TA, England |
| PEEL, Martin ACTIVE | Director | 27 Oct 2017 | | England | October 1968 | Puerorum House, 26 Great Queen Street, London, WC2B 5BL, England |
| REICHARDT, Markus Tilman ACTIVE | Director | 30 Nov 2022 | | England | November 1963 | Ingram House, Meridian Way, Norwich, Norfolk, NR7 0TA, United Kingdom |
| ADDISON, Elizabeth Mary RESIGNED | Secretary | 25 May 2000 | 04 Mar 2003 | | | 5 Millside Place, Isleworth, Middlesex, TW7 6BU |
| DERHAM, Michael John RESIGNED | Secretary | 18 Apr 2005 | 25 Sep 2018 | | | 25 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| DERHAM, Michael John RESIGNED | Secretary | | 21 Jul 1996 | | | 25 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| LEISHMAN, Camille RESIGNED | Secretary | 21 Jul 1996 | 15 May 1997 | | | 4 Millside Place, Isleworth, Middlesex, TW7 6BU |
| MORRISON, Michael John RESIGNED | Secretary | 15 May 1997 | 25 May 2000 | | | 31 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| STRONGMAN, Fiona Anne RESIGNED | Secretary | 04 Mar 2003 | 18 Apr 2005 | | | 35 Church Street, Isleworth, Middlesex, TW7 6BE |
| ADCOCK, Elizabeth Mary RESIGNED | Director | 30 Sep 2016 | 12 Dec 2024 | England | October 1958 | Ingram House, 6 Meridian Way, Norwich, NR7 0TA, England |
| ADDISON, Elizabeth Mary RESIGNED | Director | 28 May 1998 | 04 Mar 2003 | England | October 1958 | 5 Millside Place, Isleworth, Middlesex, TW7 6BU |
| BIRCHALL, Arthur James RESIGNED | Director | 06 Jul 2006 | 01 Aug 2011 | England | June 1949 | 14 Millside Place, Isleworth, Middlesex, TW7 6BU |
| CAMUS, Paul Alain RESIGNED | Director | 19 Jun 2003 | 09 Jun 2014 | England | January 1964 | 104 Mill Plat, Old Isleworth, Middlesex, TW7 6BZ |
| CROOKE, Earl Philip Stanley RESIGNED | Director | 16 Jun 2005 | 04 Jul 2006 | | December 1953 | 11 Millside Place, Old Isleworth, Middlesex, TW7 6BU |
| DERHAM, Michael John RESIGNED | Director | 16 Sep 2004 | 27 Oct 2017 | England | October 1947 | 25 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| DERHAM, Michael John RESIGNED | Director | | 21 Jul 1996 | England | October 1947 | 25 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| HAFTER, Gordon Henry RESIGNED | Director | | 25 May 2000 | | May 1921 | 15 Millside Place, Isleworth, Middlesex, TW7 6BU |
| HARDS, Valerie Susan Newton RESIGNED | Director | 07 Jun 1996 | 11 Feb 2000 | United Kingdom | July 1950 | 112 Mill Plat, Old Isleworth, Middlesex, TW7 6BZ |
| HARRIS, John Winston RESIGNED | Director | 28 May 1998 | 22 Apr 2005 | | May 1949 | 1 Millside Place, Old Isleworth, Middlesex, TW7 6BU |
| HARRISON, Jacqueline Patrica RESIGNED | Director | | 15 May 1997 | | April 1956 | 9 Millside Place, Isleworth, Middlesex, TW7 6BU |
| LEISHMAN, Camille RESIGNED | Director | 07 Jun 1996 | 15 Jul 1997 | | October 1938 | 4 Millside Place, Isleworth, Middlesex, TW7 6BU |
| LOWMASS, Stephanie RESIGNED | Director | 15 May 1997 | 25 May 2000 | | October 1958 | 37 Church Street, Isleworth, Middlesex, TW7 6BE |
| MCCREADY, Simon Christian RESIGNED | Director | 24 Jun 1994 | 08 Jun 1996 | | March 1969 | 108 Mill Plat, Church Street, Old Isleworth, Middlesex, TW7 6BZ |
| MOODY, Peter Herbert Charles RESIGNED | Director | | 08 Jun 1996 | | October 1957 | 12 Millside Place, Isleworth, Middlesex, TW7 6BU |
| MORRISON, Michael John RESIGNED | Director | 15 May 1997 | 03 Jun 2002 | United Kingdom | June 1947 | 31 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| MULLANY, Tadhg Micheal RESIGNED | Director | 01 Aug 2011 | 24 Mar 2014 | Uk | September 1983 | 110, Mill Plat, Old Isleworth, Middlesex, TW7 6BZ, United Kingdom |
| NIBLETT, Guy RESIGNED | Director | 03 Nov 1997 | 07 Jun 2001 | | November 1960 | 8 Millside Place, Isleworth, Middlesex, TW7 6BU |
| PIEKCARZ-COXON, Marie RESIGNED | Director | 15 May 1997 | 13 Sep 1999 | | February 1944 | 16 Millside Place, Old Isleworth, Middlesex, TW7 6BY |
| RENTON-ROSE, Christopher Steven RESIGNED | Director | 07 Jun 1996 | 15 May 1997 | | July 1951 | 5 Millside Place, Isleworth, Middlesex, TW7 6BU |
| SANDERS, Judith Ann RESIGNED | Director | 25 May 2000 | 03 Jun 2002 | | August 1965 | 6 Millside Place, Isleworth, Middlesex, TW7 6BU |
| STRONGMAN, Fiona Anne RESIGNED | Director | 25 May 2000 | 18 Apr 2005 | | January 1958 | 35 Church Street, Isleworth, Middlesex, TW7 6BE |
| SYMONS, Jeanette Evelyn RESIGNED | Director | 01 Aug 2011 | 09 Mar 2012 | England | October 1950 | 37, Church Street, Old Isleworth, Middlesex, TW7 6BE, England |
| TASKER, Timothy Charles Gadsden RESIGNED | Director | 03 Nov 1997 | 13 Jun 2002 | | June 1953 | 12 Millside Place, Old Isleworth, Middlesex, TW7 6BU |
| VANN, Meriel Marquessa RESIGNED | Director | 09 Jun 2014 | 27 Oct 2017 | England | April 1960 | Puerorum House, 26 Great Queen Street, London, WC2B 5BL, England |
| VOUGIOUKAS, Jane Pashley RESIGNED | Director | 16 Sep 2004 | 01 Jun 2011 | United Kingdom | September 1957 | 100 Mill Plat, Old Isleworth, Middlesex, TW7 6BZ |
| WOOD, Laurence Arthur, Professor RESIGNED | Director | 08 Feb 2005 | 28 Jun 2006 | | May 1947 | 33 Church Street, Old Isleworth, Middlesex, TW7 6BE |
| WOOD, Richard Vernon RESIGNED | Director | 25 May 2000 | 22 Apr 2005 | | July 1951 | 13 Millside Place, Isleworth, Middlesex, TW7 6BU |
| WOODLEY, Paul Jonathan RESIGNED | Director | | 24 Jun 1994 | England | March 1955 | Broad Oak, West Park Road, Copthorne, Sussex, RH10 3EX |