| Adam Charles Little | Director | 1 May 1995 | 11 Oct 1995 | British | 75 years |
| Adam Charles Little | Director | 1 Jan 1997 | 20 May 1997 | British | 75 years |
| Adrienne Christine Tallents | Director | 1 May 1995 | 31 Jul 1999 | British | 79 years |
| Amanda Jane Durrant | Director | 1 Jan 1997 | 31 Mar 1999 | British | 67 years |
| Andrew Paul Hopwood | Director | 1 Mar 1999 | 30 Jun 2000 | British | 68 years |
| Anne Drinkwater | Director | 1 Jan 2008 | 31 Dec 2008 | British | 70 years |
| Anthony Bryan Hayward | Director | 1 Mar 1999 | 31 Aug 2000 | British | 69 years |
| Brian Michael Puffer | Director | 11 Oct 2010 | 6 Feb 2018 | British,american | 57 years |
| Byron Elmer Grote | Director | 12 Mar 1996 | 1 Jul 1997 | British | 78 years |
| Charles Joseph Pitman | Director | 1 Mar 1999 | 31 Aug 1999 | United States | 84 years |
| Christopher Alan Wright | Director | 10 Apr 1993 | 31 Aug 1995 | British | 79 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| David Christopher Allen | Director | 1 Sept 1997 | 28 Feb 1999 | British | 72 years |
| David John Pritchard | Director | 1 Jan 1997 | 27 Feb 1998 | American | 78 years |
| David Keith Woodward | Director | 1 Sept 2001 | 10 Nov 2006 | British | 80 years |
| Douglas Patrick Chapman | Director | 17 Jul 1992 | 10 Apr 1993 | British | 76 years |
| Edmund John Phillip Browne | Director | 1 Mar 1993 | 31 Aug 1995 | British | 78 years |
| Edward Whitehead | Director | 10 Apr 1993 | 9 Dec 1994 | British | 79 years |
| Elaine Patricia Skinner-reid | Director | 30 Sept 2020 | 14 Jan 2022 | Irish | 51 years |
| Gordon Young Birrell | Director | 1 Jul 2000 | 31 Aug 2001 | British | 63 years |
| Gordon Young Birrell | Director | 15 Nov 2012 | 2 Apr 2017 | British | 63 years |
| Ian Douglas Forbes | Director | 27 Feb 1998 | 28 Feb 1999 | British | 76 years |
| Janet Elvidge | Secretary | 1 Aug 2004 | 1 Feb 2006 | Other | - |
| John Harold Bartlett | Director | 20 May 1997 | 27 Feb 2012 | British | 73 years |
| Julian John Watts | Secretary | 10 Apr 1992 | 10 Apr 1993 | New Zealand | - |
| Mark Traill Bentley | Director | 10 Apr 1992 | 17 Jul 1992 | British | 91 years |
| Rashid Jamil Oglu Javanshir | Director | 3 Sept 2009 | 15 Nov 2012 | Azerbaijani | 75 years |
| Richard Charles Grayson | Director | 10 Apr 1992 | 10 Apr 1993 | British | 85 years |
| Richard Leon Paniguian | Director | 1 Dec 1999 | 1 Jan 2008 | British | 77 years |
| Richard Michael Harding | Director | 1 May 1995 | 20 Dec 1996 | British | 77 years |
| Robert Cameron Cumming | Secretary | 10 Apr 1993 | 31 Mar 2002 | British | - |
| Robert Gary Jones | Director | 2 Apr 2017 | 1 Oct 2025 | British | 66 years |
| Rodney Frank Chase | Director | 11 Oct 1995 | 12 Mar 1996 | British | 83 years |
| Roy Leslie Tooley | Secretary | 11 Feb 2002 | 1 Aug 2004 | British | - |
| Sandra Jean Macrae | Director | 27 Feb 2012 | 1 Jan 2016 | British | 63 years |
| Terence David Adams | Director | 9 Dec 1994 | 1 May 1995 | British | 88 years |
| Trine Lise Juliussen | Director | 10 Mar 2020 | 30 Sept 2020 | Norwegian | 45 years |
| Trine Lise Juliussen | Director | 14 Jan 2022 | 1 Oct 2025 | Norwegian | 45 years |
| William George Schrader | Director | 10 Nov 2006 | 3 Sept 2009 | United States | 68 years |
| Yasin Stanley Ali | Secretary | 1 Feb 2006 | 30 Jun 2010 | Other | - |