| Abbey Asubiaro | Director | 3 Dec 2002 | 5 Sept 2003 | British | 60 years |
| Adam David Christopher Westley | Director | 4 Aug 1999 | 27 Mar 2001 | British | 56 years |
| Alison Clare Bibby | Director | 20 Jun 2001 | 1 Nov 2007 | British | 59 years |
| Allison Jane Currie | Director | 1 Apr 2008 | 30 Mar 2010 | British | 47 years |
| Anne Christine Girling | Director | 2 May 1997 | 31 May 2000 | British | 61 years |
| Anthony Francis Williams | Director | 13 Jul 1992 | 4 Aug 1999 | British | 77 years |
| Brian Newton Thorpe | Director | 20 Sept 1996 | 30 Dec 1996 | British | 90 years |
| Carolyn Ann Ladd | Director | 8 Aug 2001 | 31 Oct 2003 | British | 52 years |
| Cerys Margaret Blades | Director | 17 Mar 2020 | 12 Jun 2020 | British | 34 years |
| Charlotte Amy India Gill | Director | 26 Jan 2018 | 28 Jun 2023 | British | 35 years |
| Charlotte Louise Brehaut | Director | 1 Apr 2008 | 2 Feb 2012 | British | 49 years |
| Christopher John Barnfield | Director | 19 Nov 2015 | 17 Apr 2020 | British | 43 years |
| Ciara Margaret Gilleece | Director | 4 Aug 1999 | 24 Jan 2003 | Irish | 56 years |
| Clare Frances Barrett | Director | 8 Oct 2003 | 1 Nov 2010 | British | 55 years |
| Clare Frances Barrett | Director | 15 Sept 2011 | 14 Jun 2017 | British | 55 years |
| Colin John Holmes | Director | 24 Jan 2012 | 25 Apr 2013 | British | 69 years |
| Colin Moir | Director | 7 Nov 1995 | 23 Oct 1998 | British | 71 years |
| David John Mark Blizzard | Director | 26 Apr 2004 | 16 Nov 2012 | British | 53 years |
| Deirdre Ann Parry | Director | 20 Nov 2000 | 2 Jul 2003 | Irish/british | 65 years |
| Emma Antonia Hunt | Director | 28 Aug 2012 | 15 Sept 2014 | British | 44 years |
| Emma Antonia Hunt | Director | 5 Nov 2015 | 28 Jul 2016 | British | 44 years |
| Emma Louise Johnson | Director | 31 Jul 2006 | 2 Sept 2009 | British | 48 years |
| Frances Julie Niven | Director | 15 May 2006 | 14 Mar 2011 | British | 55 years |
| Garth Wright | Director | 5 Dec 2016 | 30 Apr 2025 | British | 62 years |
| Gemma Tremlett | Director | 1 May 2018 | 14 Aug 2020 | British | 37 years |
| Geoffrey Smith | Director | 20 Nov 2000 | 24 Sept 2004 | British | 77 years |
| Gillian Diane Marcus | Director | 17 Mar 2011 | 11 Oct 2011 | British | 65 years |
| Ian Craig Whyte | Director | 13 Jul 1992 | 25 Nov 1998 | British | 80 years |
| Ian Craig Whyte | Secretary | 12 Jul 1996 | 6 Oct 1998 | British | - |
| Ines Lucia Watson | Director | 17 Feb 2014 | 23 Dec 2016 | British | 65 years |
| Jane Hamilton | Director | 3 Aug 2020 | 30 Jun 2021 | British | 43 years |
| Jason Leslie Wright | Director | 31 Aug 2017 | 8 Nov 2019 | British | 55 years |
| John Michael David Atterbury | Director | 13 Jul 1992 | 13 Jun 1995 | British | 90 years |
| John Michael David Atterbury | Secretary | 13 Jul 1992 | 10 Feb 1995 | British | - |
| John Michael Mills | Director | 21 Jun 1996 | 31 Jan 2000 | British | 61 years |
| Karen Rowe | Director | 17 Apr 2018 | 22 Oct 2021 | British | 54 years |
| Kathryn Silverwood | Director | 27 May 2004 | 13 Dec 2005 | British | 58 years |
| Kelly Jane Hack | Director | 10 Jun 2014 | 16 Oct 2015 | British | 50 years |
| Kelly Louise Stuart | Director | 26 Jan 2018 | 23 Jun 2023 | British | 41 years |
| Krishan Pandit | Director | 14 Jan 2021 | 20 Apr 2022 | British | 38 years |
| Lisa Margaret Norton | Director | 29 Jan 2013 | 11 Aug 2017 | British | 42 years |
| Lisa Margaret Norton | Director | 3 Oct 2018 | 19 Dec 2019 | British | 42 years |
| Lynsey Marie Burton | Director | 7 Apr 2010 | 11 Mar 2011 | British | 45 years |
| Lynsey Marie Burton | Director | 6 Mar 2012 | 24 Oct 2016 | British | 45 years |
| Marc James Gregory | Director | 30 Nov 2010 | 28 May 2012 | British | 62 years |
| Marcos Castro | Director | 2 Jul 2021 | 18 Mar 2022 | British | 46 years |
| Marie Smith | Director | 23 Mar 2005 | 16 Jun 2017 | British | 55 years |
| Mark Edwards | Director | 18 Feb 2003 | 3 Sept 2003 | British | 69 years |
| Merryl Cassidy | Nominee Director | 13 Jul 1992 | 29 Sept 1995 | British | 86 years |
| Michael John Bowes | Director | 2 May 1997 | 4 Aug 1999 | British | 75 years |
| Michelle Amey | Director | 8 Oct 2003 | 17 May 2006 | British | 58 years |
| Michelle Anne Hill | Director | 13 Dec 2007 | 3 Jun 2010 | British | 48 years |
| Michelle Louise Holt | Director | 1 Aug 2013 | 31 May 2018 | British | 41 years |
| Moya Jane Hayhurst | Director | 13 Aug 2014 | 31 Jan 2021 | German | 55 years |
| Natalie Cathlyn Weedon | Director | 11 Jan 2007 | 27 Nov 2009 | British | 48 years |
| Olubunmi Williams | Director | 13 Dec 2010 | 6 Jan 2014 | Nigerian | 58 years |
| Oluremi Temitope Adejumo | Director | 5 Dec 2016 | 19 Oct 2023 | British | 54 years |
| Patrick Anthony Gonsalves | Director | 31 May 2000 | 23 Dec 2016 | British | 64 years |
| Paula Danielle Ade | Director | 2 Jul 2021 | 30 Apr 2025 | British | 40 years |
| Rebecca Anne Potts | Director | 6 Jan 2006 | 16 Nov 2007 | British | 50 years |
| Rebecca Anne Potts | Director | 24 Mar 2009 | 31 Mar 2011 | British | 50 years |
| Ricardo Vasquez | Director | 15 Jun 2018 | 15 Nov 2019 | Australian | 49 years |
| Ronald David Henry Ainsworth | Director | 13 Jul 1992 | 7 Oct 1996 | British | 85 years |
| Ronald David Henry Ainsworth | Secretary | 10 Feb 1995 | 12 Jul 1996 | British | - |
| Rosamund Martha Rule | Director | 1 Jan 2013 | 16 Jan 2014 | British | 44 years |
| Rosamund Martha Rule | Director | 30 Mar 2015 | 16 Aug 2016 | British | 44 years |
| Samantha Jayne Driver | Director | 14 Oct 2014 | 14 May 2015 | Irish | 60 years |
| Sarah Elizabeth Sanders | Director | 8 Oct 2003 | 30 Dec 2005 | British | 68 years |
| Sarah Jane Waine | Director | 3 Jul 2000 | 18 Jul 2003 | British | 62 years |
| Shamsun Naher | Director | 2 Jul 2021 | 5 Aug 2022 | British | 48 years |
| Simon Mark Pordage | Director | 18 Feb 2003 | 23 Dec 2004 | British | 49 years |
| Sinead Marie Mccann | Director | 15 Jun 2018 | 17 Nov 2021 | Irish | 35 years |
| Spenta Magol | Director | 1 Sept 2008 | 28 Mar 2014 | British | 49 years |
| Stephen Paul Merry | Director | 13 Jul 1992 | 7 Aug 1996 | British | 67 years |
| Stephen Richard Page | Director | 26 Nov 1997 | 13 Mar 1998 | British | 65 years |
| Steven Robert Kilday | Director | 1 Sept 2008 | 28 Mar 2013 | British | 47 years |
| Taneth Washington | Director | 4 Sept 2015 | 1 Sept 2017 | British | 38 years |
| Taryn Louise Velosa | Director | 20 Jul 2023 | 30 Apr 2025 | British | 39 years |
| Tobias Henry Vero | Director | 26 Apr 2004 | 23 Mar 2006 | British | 49 years |
| Tracy Lorraine Allen | Director | 19 Sept 2012 | 5 Jun 2013 | British | 59 years |
| Trevor John Powell Hart | Director | 13 Jul 1992 | 20 Aug 1996 | British | 89 years |
| Victoria Elizabeth Christian Hardy | Director | 26 Jan 2018 | 14 Sept 2018 | British | 52 years |