| Achal Anil Kumar Arora | Director | 29 Jun 2023 | 28 Nov 2024 | British | 45 years |
| Andrew Raymond Matthews | Director | 25 Sept 1992 | 1 Jul 1996 | British | 96 years |
| Ann Stanley | Director | 25 Sept 1992 | 7 Jun 1999 | British | 85 years |
| Anna Catherine Bielby | Director | 1 Jul 2018 | 22 Oct 2019 | British | 48 years |
| Anna Catherine Bielby | Secretary | 21 Aug 2018 | 5 Nov 2018 | - | - |
| Anthony Kim Illsley | Director | 2 Jun 2009 | 22 Jul 2016 | British | 70 years |
| Arthur Lawrence Robinson | Director | 25 Sept 1992 | 13 Mar 1996 | British | 107 years |
| Beatrice Ware | Director | 25 Sept 1992 | 23 May 1999 | British | 97 years |
| Brian Williams Moran | Director | 25 Sept 1992 | 27 Jul 1994 | British | 85 years |
| Clare Elizabeth Page | Director | 31 Oct 2002 | 11 Jun 2003 | British | 56 years |
| Clare Elizabeth Page | Director | 1 Jan 2005 | 27 Oct 2006 | British | 56 years |
| Clifford Ross Cope | Director | 18 Aug 1997 | 31 Dec 2000 | British | 78 years |
| Dale Wayne Raneberg | Director | 22 Oct 2019 | 20 Apr 2022 | Swedish | 66 years |
| David Graham Holden | Director | 27 Nov 2007 | 31 Dec 2018 | British | 67 years |
| David Michael Wood | Director | 25 Sept 1992 | 16 Mar 1998 | British | 81 years |
| Dennis Woods | Director | 25 Sept 1992 | 3 Jan 1996 | British | 78 years |
| Elizabeth Jane Aikman | Director | 10 Oct 2016 | 30 Jun 2018 | British | 61 years |
| Elizabeth Marian Barber | Director | 7 Apr 2015 | 1 Aug 2019 | British | 61 years |
| Frederick Rowland Beedle | Director | 25 Sept 1992 | 26 Jul 2002 | British | 90 years |
| George Evans Andrews | Director | 25 Sept 1992 | 25 Feb 1999 | British | 105 years |
| Gordon William Wilson | Director | 28 Jul 2005 | 4 Jun 2007 | British | 88 years |
| Graham Sutherland | Director | 15 Oct 2018 | 22 Oct 2019 | British | 63 years |
| Ian Robert Mckenzie | Director | 1 Jun 2000 | 31 Mar 2002 | British | 75 years |
| Janice Elizabeth Hughes | Director | 18 Nov 1999 | 23 Jul 2004 | British | 74 years |
| Johan Eric Dennelind | Director | 23 May 2022 | 31 Jan 2025 | Swedish | 57 years |
| Johannes Peter Huth | Director | 31 Dec 2004 | 23 Jun 2005 | German | 66 years |
| John Bernard Fitzgerald | Director | 18 Oct 2019 | 31 May 2024 | Irish | 64 years |
| John Christopher Carrington | Director | 8 Apr 2003 | 25 Jul 2008 | British | 81 years |
| John Graham Robinson | Director | 27 Oct 2006 | 5 Jun 2007 | British | 65 years |
| John Kevin Walsh | Director | 24 May 2004 | 29 Jul 2014 | British | 73 years |
| John Philip Cureton Bailey | Secretary | 25 Sept 1992 | 27 Nov 2007 | British | - |
| John Webster | Director | 25 Sept 1992 | 2 Jun 1995 | British | 87 years |
| Julie Lowery | Director | 2 Jun 1995 | 7 Jun 1999 | British | 93 years |
| Katharine Olivia Helen Smith | Secretary | 16 Jul 2010 | 21 Aug 2018 | - | - |
| Kathleen Green | Director | 25 Sept 1992 | 2 Jun 1995 | British | 98 years |
| Keith Julian Monserrat | Director | 25 Sept 1992 | 10 Feb 1995 | British | 73 years |
| Leonard Maxwell Bird | Director | 2 Jun 1995 | 31 Oct 2002 | British | 87 years |
| Leonard Maxwell Bird | Director | 11 Jun 2003 | 31 Mar 2005 | British | 87 years |
| Leslie William Upfold | Director | 7 Feb 1996 | 7 Jun 1999 | British | 91 years |
| Malcolm James Fallen | Director | 18 Jan 2001 | 25 Nov 2008 | English | 67 years |
| Martin George Towers | Director | 2 Jun 2009 | 31 Jul 2015 | British | 74 years |
| Michael David Abrahams | Director | 1 Mar 1999 | 24 Jul 2009 | British | 89 years |
| Michael Edwards | Director | 1 Mar 1999 | 15 Jul 2002 | British | 86 years |
| Michael Lacey | Director | 14 Nov 1995 | 20 Jul 1998 | British | 80 years |
| Michael Malcolm John Kemp | Director | 31 Oct 2002 | 11 Jun 2003 | British | 84 years |
| Michael Sean Christie | Director | 1 Mar 1999 | 27 Nov 2007 | British | 69 years |
| Michael Sidney Adamson | Director | 1 Jul 1993 | 18 Mar 1997 | British | 84 years |
| Nathan Andrew Luckey | Director | 18 Oct 2019 | 25 Jan 2024 | British,australian | 47 years |
| Neil Geoffrey Gower | Director | 24 May 2004 | 31 Aug 2009 | British | 67 years |
| Owen Francis Finn | Director | 14 Nov 1995 | 19 Mar 1997 | British | 73 years |
| Paolo Giovanni Amato Renucci | Director | 27 Nov 2007 | 13 Dec 2010 | British | 63 years |
| Patrick Jean-marie De Smedt | Director | 28 Jan 2016 | 1 Aug 2019 | Belgian | 71 years |
| Paul Simon Simpson | Director | 24 May 2004 | 30 Sept 2016 | British | 58 years |
| Paul Simon Simpson | Secretary | 27 Nov 2007 | 16 Jul 2010 | British | - |
| Pauline Mary Walsh | Director | 1 Mar 2024 | 27 Feb 2025 | Irish | 59 years |
| Peter Labreque Smith | Director | 5 Jan 2015 | 1 Aug 2019 | British | 68 years |
| Peter Richard Halls | Director | 31 Dec 2004 | 20 Dec 2007 | British | 76 years |
| Richard Greenleaf | Director | 18 Oct 2019 | 18 May 2022 | British | 45 years |
| Samantha Rosemary Jane Booth | Director | 29 Sept 2021 | 15 Dec 2022 | British | 55 years |
| Sarah Elizabeth Jones | Secretary | 5 Nov 2018 | 22 Oct 2019 | - | - |
| Stephen Denison | Director | 14 Nov 1995 | 26 May 1999 | British | 71 years |
| Steven James Bayes | Director | 25 Apr 1996 | 28 Feb 1999 | British | 65 years |
| Steven Maine | Director | 23 Oct 1997 | 10 Sept 2003 | British | 75 years |
| Tim Shaw | Director | 28 Apr 2022 | 31 Jul 2025 | British | 47 years |
| William George Halbert | Director | 1 Sept 2006 | 29 Nov 2018 | British | 79 years |
| William Harold Randall Aylward | Director | 18 Oct 1996 | 9 Jul 1997 | British | 75 years |