| COLFER, Lindsay Ann ACTIVE | Secretary | 01 Nov 2025 | | | | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| KULKARNI, Smita ACTIVE | Secretary | 27 Mar 2025 | | | | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| ADAMS, Richard Frank ACTIVE | Director | 17 Nov 2010 | | England | March 1964 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| ATKINSON-YOUNG, Adam Glen ACTIVE | Director | 27 Nov 2024 | | England | January 1973 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| BROWN, David Edward ACTIVE | Director | 24 Jun 2020 | | England | May 1978 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| GRAHAM, Michael James Thompson ACTIVE | Director | 16 May 2019 | | England | May 1969 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| HALL, Matthew Richard ACTIVE | Director | 09 Jun 2011 | | England | August 1977 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| HARRY, David Geraint Maddock ACTIVE | Director | 27 Nov 2024 | | England | June 1987 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| STATHAM, Victoria Louise ACTIVE | Director | 27 Nov 2024 | | England | July 1977 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| CAMERON, Geoffrey Allister John RESIGNED | Secretary | 09 Mar 1999 | 10 Mar 2004 | | | 76 Frances Road, Windsor, Berkshire, SL4 3AJ |
| CURTIS JENKINS, Graham Hugh, Doctor RESIGNED | Secretary | 01 Feb 1999 | 09 Mar 1999 | | | 38 Richmond Road, Staines, Middlesex, TW18 2AB |
| EVANS, Gordon Wyn RESIGNED | Secretary | | 11 Mar 1998 | | | 39 Overdale Avenue, New Malden, Surrey, KT3 3UE |
| MCLENNAN, Rachel RESIGNED | Secretary | 01 Jan 2016 | 26 Feb 2020 | | | 3, Gresham Road, Staines, TW18 2BT, United Kingdom |
| PHILPOTT, Jonathan Edward Guy RESIGNED | Secretary | 26 Feb 2020 | 30 Apr 2025 | | | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| ROGERS, Susan RESIGNED | Secretary | 10 Mar 2004 | 31 Jul 2016 | | | 27, Shortwood Avenue, Staines, Middlesex, TW18 4JN, United Kingdom |
| AUSTIN, Penelope Anne RESIGNED | Director | 01 Sep 2014 | 03 May 2019 | United Kingdom | August 1960 | Halstead Educational Trust, Halstead Preparatory School, Woodham Rise, Woking, Surrey, GU21 4EE, United Kingdom |
| BANNISTER, Michael RESIGNED | Director | 08 Mar 2006 | 01 Sep 2020 | England | May 1949 | 11 Budebury Road, Staines, Middlesex, TW18 2AZ |
| CAMERON, Geoffrey Allister John RESIGNED | Director | 22 Oct 1997 | 10 Mar 2004 | England | June 1941 | 76 Frances Road, Windsor, Berkshire, SL4 3AJ |
| CAULFIELD, Sarah Jane RESIGNED | Director | 01 Sep 2016 | 23 Jan 2024 | United Kingdom | April 1973 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| CEFAI, Joe RESIGNED | Director | 12 Jun 2003 | 06 Mar 2013 | | March 1949 | 66 Greenlands Road, Staines, Middlesex, TW18 4LR |
| CHADBURN, Richard Howard RESIGNED | Director | 22 Oct 1998 | 24 Nov 2021 | United Kingdom | July 1935 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| COX, Susan Mary RESIGNED | Director | | 07 Mar 2007 | United Kingdom | August 1944 | Deep Waters, Friary Island, Wraysbury, Middlesex, TW19 5JS |
| CROOK, John Ridd RESIGNED | Director | | 05 Mar 2008 | England | May 1937 | 31 Mill Road, Twickenham, Middlesex, TW2 5HA |
| CURTIS JENKINS, Graham Hugh, Doctor RESIGNED | Director | | 13 Mar 2003 | | November 1934 | 38 Richmond Road, Staines, Middlesex, TW18 2AB |
| DAVIES, Robert Allan RESIGNED | Director | | 10 Mar 2023 | France | May 1939 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| EVANS, Gordon Wyn RESIGNED | Director | | 11 Mar 1998 | | February 1926 | 39 Overdale Avenue, New Malden, Surrey, KT3 3UE |
| GAWLEY, Susan Marian RESIGNED | Director | | 15 Oct 2011 | | December 1938 | 4 Broadlands Avenue, Shepperton, Middlesex, TW17 9DQ |
| GIBBS, Murray Richard RESIGNED | Director | 07 Mar 2001 | 13 Mar 2002 | United Kingdom | April 1942 | Lynwood Chase Devenish Lane, Sunningdale, Ascot, Berkshire, SL5 9QU |
| GILL, Simran RESIGNED | Director | 18 Oct 2019 | 19 Mar 2025 | England | April 1990 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| GRAHAM, Michael James Thompson RESIGNED | Director | 23 May 2012 | 02 Jan 2018 | England | May 1969 | 51a, Halliford Road, Sunbury On Thames, Middlesex, TW16 6DP, United Kingdom |
| HAYNES, Peter William RESIGNED | Director | | 13 Mar 2003 | | April 1952 | Waverley Cottage, Church Street, Upton Grey, Hampshire, RG25 2RA |
| HOLLOWAY, Peter William RESIGNED | Director | 07 Mar 2007 | 04 Mar 2009 | | July 1963 | 9, Simons Walk, Englefield Green, Egham, Surrey, TW20 9SJ |
| JONES, Martin Charles RESIGNED | Director | 07 Mar 2001 | 08 Jun 2011 | England | November 1952 | River House, Stalbridge Lane, Sturminster Newton, Dorset, D10 2JQ, United Kingdom |
| MADIGAN, Anthony RESIGNED | Director | 18 Nov 2015 | 19 May 2023 | United Kingdom | September 1961 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| RANSOM, Wendy Jane RESIGNED | Director | 09 Jun 2010 | 11 Mar 2020 | United Kingdom | March 1967 | 60, Waters Drive, Staines, Middlesex, TW19 4RJ, United Kingdom |
| ROBINSON, Mary RESIGNED | Director | 09 Jun 2010 | 06 Aug 2020 | United Kingdom | April 1961 | 1, Manor Park, Staines, Middlesex, TW18 4XE, United Kingdom |
| ROSS, Susan Anne RESIGNED | Director | 07 Nov 2007 | 09 Jun 2014 | United Kingdom | August 1951 | 15 Post Lane, Twickenham, TW2 6NZ |
| SALAHUDDIN, Mobin, Doctor RESIGNED | Director | 10 Nov 2003 | 08 Jun 2011 | | May 1956 | 20a Long Lane, Stanwell, Staines, Middlesex, TW19 7AA |
| SHAUNAK, Rohit, Dr. RESIGNED | Director | 23 May 2012 | 04 Mar 2015 | United Kingdom | December 1962 | Amberley, 4 Waterfall Close, Virginia Water, Surrey, GU25 4QD, United Kingdom |
| SICE, Jennifer Margaret RESIGNED | Director | 22 Oct 1998 | 11 Mar 2020 | | May 1936 | 24 Aymers Drive, Staines, Middlesex, TW18 3LW |
| SIMMONS, Wendy RESIGNED | Director | 10 Jun 2004 | 07 Mar 2007 | | March 1946 | 11 Crosslands, Chertsey, Surrey, KT16 9QY |
| SMITH, Roger Gordon RESIGNED | Director | 07 Mar 2001 | 10 Mar 2004 | | March 1950 | 7 The Mount, Weybridge, Surrey, KT13 9LT |
| SPENCER, Thomas Joseph RESIGNED | Director | 02 Mar 2011 | 04 Mar 2015 | United Kingdom | October 1979 | Flat 16, Carew House, 132 Leigham Court Road, London, SW16 2RL, United Kingdom |
| STANDEN, Penelope RESIGNED | Director | 10 Jun 2004 | 17 Nov 2010 | United Kingdom | April 1943 | 17 Berkeley Mews, Thames Street, Sunbury On Thames, Middlesex, TW16 5QF |
| TAHER-ZADEH, Taravat RESIGNED | Director | 10 Mar 2010 | 02 Jul 2012 | England | July 1956 | Dolphins, Elmstead Road, West Byfleet, Surrey, KT14 6JB, United Kingdom |
| THOMAS, Mark RESIGNED | Director | 02 Mar 2011 | 05 Sep 2013 | England | March 1964 | 44, Loring Road, Isleworth, Middlesex, TW7 6QA, United Kingdom |
| WALMSLEY, Kevin James Thomas RESIGNED | Director | 10 Jun 2004 | 02 Mar 2011 | | August 1959 | Gladstone House, 77-79 High Street, Egham, Surrey, TW20 9HY |
| WANT, Geoffrey Roger RESIGNED | Director | 24 Jun 2020 | 19 May 2024 | England | August 1952 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |
| WASSELL, Benjamin Richard RESIGNED | Director | 28 Jun 2023 | 15 Nov 2023 | England | October 1981 | Staines Preparatory School, 3 Gresham Road, Staines-Upon-Thames, TW18 2BT, England |