| Alan Morrison Jones | Director | 1 Sept 1997 | 30 Apr 2000 | British | 82 years |
| Alisdair John Forsyth | Director | 10 Mar 2020 | 5 Jan 2021 | British | 50 years |
| Andrew James Alexander Mcauslan | Director | 28 Apr 2014 | 10 Mar 2020 | British | 65 years |
| Anneli Groth Frederiksen | Director | 16 Aug 2020 | 31 Jan 2021 | Danish | 56 years |
| Ariel David Flores | Director | 10 Mar 2020 | 2 Jul 2020 | American | 49 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| Clive Fowler | Director | 1 Apr 2001 | 31 Aug 2001 | British | 77 years |
| David Christopher Allen | Director | 12 Mar 1996 | 31 Aug 1997 | British | 72 years |
| David George Dalton | Director | 1 Feb 2012 | 1 Oct 2014 | British | 70 years |
| David John Blackwood | Director | 20 Apr 2005 | 31 Dec 2008 | British | 72 years |
| David William John Grant | Director | 1 Sept 1997 | 19 Feb 1999 | British | 74 years |
| Donald Paul Debrier | Director | 19 Feb 1993 | 31 May 1993 | American | 86 years |
| Douglas Patrick Chapman | Director | 1 Sept 1997 | 31 Mar 2001 | British | 76 years |
| George Leslie Wood | Director | 1 Mar 2012 | 31 Jan 2014 | British | 64 years |
| Gregory David Bourne | Director | 1 Jan 1995 | 31 Aug 1997 | British | 78 years |
| Guillermo Quintero Ordonez | Director | 1 Sept 2009 | 16 Mar 2010 | Venezuelan | 69 years |
| Ian Jonathan Evans | Director | 1 Jul 2009 | 1 Feb 2012 | British | 61 years |
| Ifeatu Chukwuemeka Emembolu | Director | 2 Jul 2020 | 7 Feb 2022 | British | 52 years |
| James William Halliday | Director | 21 Apr 2010 | 9 Oct 2014 | British | 68 years |
| Janet Elvidge | Secretary | 1 Aug 2004 | 1 Feb 2006 | Other | - |
| John Craig Skipper | Director | 19 Feb 1999 | 14 Dec 2012 | British | 70 years |
| John Edward Lynch Jr | Director | 1 Mar 2003 | 1 Aug 2006 | American | 74 years |
| Michael Andrew Wenham | Director | 22 May 2018 | 10 Mar 2020 | British | 67 years |
| Michael Edmund Townshend | Director | 1 Apr 2009 | 1 Sept 2009 | British | 68 years |
| Michael Edmund Townshend | Director | 1 Oct 2014 | 22 May 2018 | British | 68 years |
| Mohamed Wagih Shindy | Director | 16 Mar 2010 | 1 Mar 2012 | American | 53 years |
| Murray Michael Auchincloss | Director | 12 Jun 2009 | 21 Apr 2010 | British | 56 years |
| Robert Cameron Cumming | Secretary | 19 Feb 1993 | 31 Mar 2002 | British | - |
| Robin Dale Morris | Director | 31 May 1993 | 1 Jan 1995 | British | 80 years |
| Roy Leslie Tooley | Secretary | 11 Feb 2002 | 1 Aug 2004 | British | - |
| Sandra Jean Macrae | Director | 10 Mar 2020 | 16 Aug 2020 | British | 63 years |
| Scott Douglas Urban | Director | 1 Apr 2001 | 1 Jun 2003 | United States | 73 years |
| Steven Graham Peacock | Director | 14 Feb 2007 | 1 Apr 2009 | British | 69 years |
| Steven Weston | Director | 1 Jan 1995 | 31 Aug 1997 | British | 73 years |
| Tamara Amanda Khan | Director | 5 Jan 2021 | 14 Feb 2024 | Trinidadian | 54 years |
| Thomas John Bramley | Director | 19 Feb 1993 | 1 Jan 1995 | British | 87 years |
| Yasin Stanley Ali | Secretary | 1 Feb 2006 | 30 Jun 2010 | Other | - |
| Yousuf Mohamed Salim Al Ojaili | Director | 22 May 2018 | 3 Oct 2025 | Omani | 63 years |
