| Adrian Perry | Director | 1 Jun 2016 | 13 Nov 2018 | British | 67 years |
| Alexander Lindsay Davidson | Director | 28 Feb 1992 | 3 Sept 2001 | British | 80 years |
| Alexander William Leys | Director | 1 Jan 2009 | 30 Apr 2011 | British | 80 years |
| Alexander William Leys | Director | 1 Jul 1995 | 1 Nov 1999 | British | 80 years |
| Andrew Michael Hart | Director | 8 Dec 2006 | 7 Jul 2008 | British | 60 years |
| Christopher Paul Carter | Director | 28 Feb 1992 | 30 Sept 1999 | British | 83 years |
| David Miles Roddick | Director | 10 Apr 2007 | 31 Mar 2012 | British | 58 years |
| Edward Paul Glynn | Director | 28 Feb 1992 | 28 Apr 2006 | British | 78 years |
| Ian Grahame Park | Director | 28 Feb 1992 | 15 May 2003 | British | 91 years |
| James Justin Siderfin Welsh | Director | 30 Dec 2012 | 18 Jan 2018 | British | 59 years |
| John Peter Williams | Director | 30 Oct 2001 | 24 Mar 2011 | British | 73 years |
| John Philip Aldridge | Director | 28 Feb 1992 | 11 Jan 1998 | British | 88 years |
| Kevin Joseph Beatty | Director | 3 Sept 2001 | 24 Aug 2004 | British | 69 years |
| Kevin Joseph Beatty | Director | 18 Dec 2006 | 11 Feb 2013 | British | 69 years |
| Martin William Howard Morgan | Director | 1 Feb 2011 | 11 Feb 2013 | British | 76 years |
| Martyn John Hindley | Director | 9 Oct 2000 | 24 Oct 2008 | British | 64 years |
| Matthew James Page | Director | 30 Dec 2012 | 22 May 2015 | British | 58 years |
| Michael Paul Pelosi | Director | 28 Feb 1992 | 21 Mar 2011 | British | 73 years |
| Owen Wyn Davies | Director | 30 Oct 1995 | 31 Mar 2003 | British | 65 years |
| Paul Simon Collins | Director | 30 Dec 2012 | 29 Apr 2016 | English | 67 years |
| Paul Simon Collins | Secretary | 14 Oct 1996 | 29 Apr 2016 | British | - |
| Rachel Bernadette Addison | Director | 1 Jan 2009 | 30 Dec 2012 | British | 56 years |
| Richard William Dodd | Director | 28 Feb 1992 | 1 Nov 1999 | British | 76 years |
| Roland Edmondson Glass | Secretary | 28 Feb 1992 | 11 Oct 1996 | British | - |
| Roland Patrick Bryan | Director | 15 Jul 2010 | 10 Apr 2012 | British | 49 years |
| Stephen Andrew Auckland | Director | 21 Mar 2011 | 30 Dec 2012 | British | 71 years |
| Stephen Wayne Daintith | Director | 1 Feb 2011 | 11 Feb 2013 | British | 62 years |
| Stephen William Batch | Director | 1 Feb 1998 | 1 Nov 1999 | British | 71 years |
| Steven Anderson Dixon | Director | 21 Jan 2002 | 28 Apr 2006 | British | 68 years |
| The Fourth Viscount Rothermere | Director | 15 May 2003 | 11 Feb 2013 | British | 59 years |
| Timothy Guy Collier | Director | 10 May 2018 | 8 Mar 2022 | British | 63 years |
| Vere Harold Esmond Rothermere | Director | 28 Feb 1992 | 2 Sept 1998 | British | 101 years |
| Vivian John Rowland Baring | Director | 1 Apr 1992 | 11 Feb 2013 | British | 76 years |