| Alan Charles Glen | Director | 6 Jul 2023 | 25 Jul 2023 | British | 59 years |
| Alastair Couper | Director | 18 Oct 2000 | 20 Jun 2003 | British | 64 years |
| Allan Paul Gardner | Director | 21 Dec 1991 | 5 May 2000 | British | 74 years |
| Andrew Boyd | Director | 7 Jun 2012 | 15 Aug 2014 | British | 63 years |
| Charles Adair Anderson | Director | 19 Apr 1996 | 14 Nov 1996 | British | 80 years |
| Charles Adair Anderson | Secretary | 28 Sept 1995 | 31 Mar 2000 | British | - |
| Conrad Frederick James Clifford | Director | 31 Dec 2002 | 1 Aug 2003 | British | 68 years |
| Craig Allan Gibson Smyth | Director | 15 Oct 1997 | 1 Aug 2003 | British | 59 years |
| Daryl Robert Goddard | Director | 26 Mar 2010 | 28 Jun 2012 | British | 61 years |
| David Alastair Trollope | Director | 31 Aug 2021 | 24 Mar 2024 | British | 66 years |
| David James Mackay | Director | 28 Sept 1995 | 15 Oct 1997 | British | 83 years |
| Deon Van Niekerk | Director | 13 Jul 2016 | 9 May 2019 | South African | 54 years |
| Desmond Stephen Vertannes | Director | 19 Apr 1999 | 20 May 1999 | British | 75 years |
| Desmond Stephen Vertannes | Director | 5 May 2000 | 1 Aug 2003 | British | 75 years |
| Dirk Josef Cornelia Goovaerts | Director | 31 Dec 2014 | 13 Jul 2016 | Belgian | 63 years |
| Donald Edgar Nash | Director | 21 Dec 1991 | 28 Sept 1995 | British | 94 years |
| Fenella Louise Sloane | Director | 26 Mar 2010 | 6 Nov 2014 | British | 60 years |
| Frederick Ranald Noel-paton | Director | 28 Sept 1995 | 15 Oct 1997 | British | 88 years |
| Gary Ian Morgan | Director | 1 Dec 2008 | 7 Jun 2012 | British | 67 years |
| James Douglas Scott Bennett | Director | 28 Sept 1995 | 15 Oct 1997 | British | 84 years |
| Jan Lee Rowlands | Director | 26 Mar 2010 | 31 Jan 2013 | British | 70 years |
| John Francis Alexander Geddes | Secretary | 24 Jan 2005 | 1 Oct 2006 | British | - |
| John Henderson | Director | 9 May 2019 | 31 Aug 2021 | British | 56 years |
| John Joseph Redmond | Director | 20 Jun 2003 | 14 Jul 2008 | Irish | 58 years |
| John O'brien | Director | 31 Dec 2002 | 17 Oct 2003 | British | 68 years |
| Julia Ann Nash | Director | 21 Dec 1991 | 3 Mar 1994 | British | 65 years |
| Mark Williams Dugard | Director | 4 Sept 2006 | 27 Nov 2008 | British | 62 years |
| Mervyn Walker | Director | 1 Aug 2003 | 10 May 2007 | Irish | 66 years |
| Michael Richard Goddard | Director | 21 Dec 1991 | 28 Sept 1995 | British | 90 years |
| Michael Richard Goddard | Secretary | 21 Dec 1991 | 28 Sept 1995 | British | - |
| Michael Richard Ladd | Director | 26 Mar 2010 | 12 Jun 2021 | British | 63 years |
| Peter David Harraway | Director | 31 Jan 2013 | 31 Dec 2014 | British | 45 years |
| Peter Ernst Julius Bluth | Director | 5 May 2000 | 2 Jan 2002 | German | 79 years |
| Peter James Weir | Director | 10 Jun 2004 | 28 Oct 2005 | British | 60 years |
| Peter John Humphrey | Director | 28 Oct 2005 | 31 Mar 2016 | British | 66 years |
| Peter Simon Smith | Director | 15 Oct 1997 | 30 Apr 2004 | British | 82 years |
| Philip Harnden | Director | 24 Jan 2005 | 10 May 2007 | British | 62 years |
| Philip Harnden | Secretary | 31 Mar 2000 | 24 Jan 2005 | British | - |
| Philip Thomas Lloyd | Director | 31 Aug 2021 | 31 Aug 2021 | British | 53 years |
| Randeep Singh Sagoo | Director | 15 Aug 2014 | 13 Jul 2016 | British | 55 years |
| Richard Alexander Hepburn | Director | 31 Dec 2002 | 1 Aug 2003 | British | 63 years |
| Robert Fordree | Director | 25 Jun 2020 | 6 Jul 2023 | British | 54 years |
| Stacey Caroline Shortall | Director | 14 Jun 2011 | 29 Jun 2012 | British | 52 years |
| Steven John Nash | Director | 21 Dec 1991 | 28 Sept 1995 | British | 63 years |
| Tristan George Turnbull | Secretary | 1 Oct 2006 | 4 Sept 2020 | British | - |
| Ulrich Friedrich Desel | Director | 5 May 2000 | 2 Jan 2002 | German | 68 years |