| DREWETT, Adrian Alexander ACTIVE | Director | 06 Dec 2019 | | England | November 1962 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| GATENBY, Michael Richard Brock ACTIVE | Director | 20 Nov 2008 | | England | October 1944 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| RAYFIELD, Martin James ACTIVE | Director | 19 Jan 2024 | | England | March 1957 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| TAMILARASAN, Maghin ACTIVE | Director | 09 Jan 2026 | | England | November 1974 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| YOUNG, Hannah Lucy ACTIVE | Director | 09 Jan 2026 | | England | July 1981 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| DODD, Martin William Lindsay RESIGNED | Secretary | 01 Mar 1994 | 13 Apr 2000 | | | 2 The Meadow, Hailey Lane, Hertford Heath, Hertfordshire, SG13 7LZ |
| FITZSIMONS, Gerard RESIGNED | Nominee Secretary | 14 Dec 1993 | 01 Mar 1994 | | | 19 Victoria Park, Cambridge, Cambridgeshire, CB4 3EJ |
| GATENBY, Michael Richard Brock RESIGNED | Secretary | 20 Nov 2008 | 20 Nov 2008 | | | 11, Norland Square, London, W11 4PX |
| MILLS, Catrin Anne RESIGNED | Secretary | 17 Oct 2023 | 02 Jun 2025 | | | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| SCHOFIELD, Richard Michael RESIGNED | Secretary | 01 Sep 2020 | 17 Oct 2023 | | | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| WRIGHT, Deborah Jane RESIGNED | Secretary | 13 Apr 2000 | 31 Aug 2020 | | | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| BASS, Roger Graham RESIGNED | Director | 16 Sep 1994 | 31 Aug 1999 | | December 1938 | The Deanery, Haileybury & Imperial Service Colleg, Hertford, Hertfordshire, SG13 7NU |
| DAVIES, Anthony Deriemer RESIGNED | Director | 01 Mar 1994 | 05 Dec 1997 | | April 1937 | 50 London Road, Hertford Heath, Hertford, Hertfordshire, SG13 7PP |
| DAVIES, James Selwyn RESIGNED | Director | 01 Oct 2009 | 31 Jul 2017 | United Kingdom | June 1956 | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| FITZSIMONS, Gerard RESIGNED | Nominee Director | 14 Dec 1993 | 01 Mar 1994 | | August 1959 | 19 Victoria Park, Cambridge, Cambridgeshire, CB4 3EJ |
| GALPIN, Rodney Desmond RESIGNED | Director | 11 Mar 1994 | 31 Dec 1997 | | February 1932 | Aldermans Cottage, Lutmans Haven Knowl Hill, Reading, Berkshire, RG10 9YN |
| GATENBY, Michael Richard Brock RESIGNED | Director | 12 Nov 2002 | 20 Nov 2008 | England | October 1944 | 11 Norland Square, London, W11 4PX |
| HALSALL, Martin William RESIGNED | Director | 02 Dec 2005 | 12 Sep 2008 | | February 1954 | Rose Cottage, 50 London Road Hertford Heath, Hertford, Hertfordshire, SG13 7PP |
| HARDCASTLE, Alan John, Sir RESIGNED | Director | 06 Nov 1998 | 03 Oct 2001 | | August 1933 | 53 Wynnstay Gardens, Allen Street, London, W8 6UU |
| JEWELL, David John RESIGNED | Director | 11 Mar 1994 | 31 Aug 1996 | | March 1934 | Haileybury College Harforde Court, John Tate Road, Hertford, Hertfordshire, SG13 7NW |
| KVERNDAL, Ole Sigvard RESIGNED | Director | 16 Sep 1994 | 04 Dec 1998 | | November 1926 | Colgates Shoreham Lane, Halstead, Sevenoaks, Kent, TN14 7BY |
| MILLS, Catrin Anne RESIGNED | Director | 17 Oct 2023 | 02 Jun 2025 | United Kingdom | December 1974 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| PALMER, John Boucher RESIGNED | Director | 05 Dec 1997 | 02 Dec 2005 | | May 1949 | Rose Cottage 50 London Road, Hertford Heath, Hertford, Hertfordshire, SG13 7PP |
| PILGRIM, Alan John Templer RESIGNED | Director | 03 Mar 2011 | 19 Jan 2024 | England | June 1951 | The Bursary, Haileybury College, Hertford, SG13 7NU, England |
| PULLEN, James Stephen, Reverend RESIGNED | Director | 05 Nov 1999 | 03 Oct 2001 | | July 1943 | The Deanery, Haileybury & Imperial Service Colleg, Hertford, Hertfordshire, SG13 7NU |
| SCHOFIELD, Richard Michael RESIGNED | Director | 06 Dec 2019 | 17 Oct 2023 | United Kingdom | August 1965 | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| SULLIVAN, Ruth Mary RESIGNED | Director | 15 Nov 2012 | 24 Sep 2013 | England | October 1972 | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| THORNTON, James Douglas RESIGNED | Director | 03 Oct 2001 | 06 Dec 2013 | England | July 1947 | Castle Moat House, 25 Castle Street, Hertford, Hertfordshire, SG14 1HH |
| TOYNE SEWELL DL, Timothy Patrick, Major General RESIGNED | Director | 05 Nov 1999 | 14 Jun 2007 | United Kingdom | July 1941 | Nightingales, Nether Wallop, Hampshire, S020 8E2 |
| TURNBULL, Robert Lewis RESIGNED | Director | 03 Oct 2001 | 06 Jul 2012 | England | January 1953 | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| URRY, Stewart Wallace RESIGNED | Director | 20 Nov 2008 | 03 Mar 2011 | England | October 1946 | Hursey House, Hursey, Beaminster, Dorset, DT8 3LN, England |
| URRY, Stewart Wallace RESIGNED | Director | 16 Sep 1994 | 10 Jul 2002 | United Kingdom | October 1946 | Ashley Chase House, Abbotsbury, Weymouth, Dorset, DT3 4JZ |
| WATKINSON, Paul David RESIGNED | Director | 01 Dec 2008 | 06 Dec 2019 | England | September 1958 | The Porters Lodge, Haileybury, Hertford Heath Hertford, Hertfordshire, SG13 7NU |
| WESTLEY, Stuart Alker RESIGNED | Director | 01 Sep 1996 | 01 Oct 2009 | | March 1947 | The Masters Lodge, Haileybury, Hertford, Hertfordshire, SG13 7NU |
| WOMACK, Michael Thomas RESIGNED | Nominee Director | 14 Dec 1993 | 03 Mar 1994 | | August 1947 | 12 De Freville Avenue, Cambridge, Cambridgeshire, CB4 1HR |