| Alan John Frost | Director | 26 Apr 2000 | 31 Mar 2001 | British | 82 years |
| Andrew Henry Longhurst | Director | 26 Apr 2000 | 31 May 2002 | British | 87 years |
| Andrew Stewart Carter | Director | 1 Jan 2007 | 1 Jan 2007 | British | 66 years |
| Andrew Stewart Carter | Director | 2 Jan 2007 | 31 Dec 2015 | British | 66 years |
| Andrew William Palmer | Director | 1 Apr 2011 | 3 Apr 2020 | British | 73 years |
| Anthony Henry Percival | Director | 1 Jan 1999 | 30 Jun 2001 | British | 86 years |
| Barry John Skipper | Director | 11 Oct 1995 | 26 Apr 2000 | British | 88 years |
| Barry Patrick Fitzgerald | Director | 22 Jan 1997 | 30 Apr 2003 | British | 82 years |
| Brian James Duffin | Director | 1 Jul 2001 | 31 Mar 2007 | British | 71 years |
| Brian Robert Jones | Director | 8 May 1990 | 31 Oct 1998 | British | 80 years |
| Christopher Charles Aujard | Secretary | 28 Jun 2007 | 31 Mar 2011 | Australian | - |
| Christopher Martin Phillips | Director | 1 Apr 2001 | 19 Sept 2003 | British | 70 years |
| Cyril Brill | Director | 8 May 1990 | 31 Jan 1993 | British | 93 years |
| David Avery Weymouth | Director | 1 Jul 2012 | 2 Jun 2021 | British | 71 years |
| David Gay Williams | Director | 1 Mar 2006 | 4 Jun 2013 | British | 80 years |
| Duncan George Robin Ferguson | Director | 1 Apr 2010 | 14 Jun 2017 | British | 84 years |
| Gerald Bernard Coyle | Director | 11 Oct 1995 | 5 Dec 1997 | British | 89 years |
| Hubert Valentine Reid | Director | 1 Apr 1996 | 31 Dec 2005 | British | 86 years |
| Ian Edwin Dilks | Director | 14 Nov 2014 | 31 Dec 2023 | British | 73 years |
| Jane Christine Platt | Director | 5 Jul 2012 | 4 Jun 2013 | British | 69 years |
| Jane Fields Wicker Miurin | Director | 1 Jan 2003 | 25 May 2006 | British American | 68 years |
| John Brian Knights | Director | 8 May 1990 | 13 Apr 1995 | British | 91 years |
| John Vincent Deane | Director | 1 Apr 2007 | 29 Jun 2012 | British | 68 years |
| Jonathan Mark Macdonald | Director | 14 Dec 2012 | 24 Apr 2019 | British | 54 years |
| Kathryn Ann Matthews | Director | 26 Jun 2012 | 31 Dec 2014 | British | 67 years |
| Kerr Luscombe | Director | 23 Jul 2012 | 14 May 2014 | British | 61 years |
| Kevin Allen Huw Parry | Director | 19 Mar 2019 | 3 Oct 2024 | British | 64 years |
| Lynne Margaret Peacock | Director | 1 Dec 2023 | 9 Feb 2025 | British | 73 years |
| Michael John Pickard | Director | 8 May 1990 | 9 Jul 1999 | British | 87 years |
| Michael John Yardley | Director | 8 May 1990 | 1 Oct 2011 | British | 70 years |
| Murray John Ross | Director | 22 Jan 1997 | 30 Jun 2001 | British | 79 years |
| Murray John Ross | Secretary | 1 Apr 1996 | 28 Jun 2007 | British | - |
| Norman Wooding | Director | 8 May 1990 | 30 Apr 1996 | British | 99 years |
| Olivia Catherine Dickson | Director | 15 Jun 2017 | 31 Dec 2018 | British | 66 years |
| Philip Duncan Loney | Director | 1 Oct 2011 | 19 Jun 2019 | British | 62 years |
| Robert Charles Hubert Jeens | Director | 1 May 2003 | 22 May 2012 | British | 73 years |
| Robert Felix Erith | Director | 8 May 1990 | 30 Apr 1996 | British | 88 years |
| Rupert Lascelles Pennant-rea | Director | 13 Dec 2012 | 31 Dec 2018 | British | 78 years |
| Sally Bridgeland | Director | 14 Jan 2015 | 31 Dec 2023 | British | 62 years |
| Shirley Jill Garrood | Director | 10 Dec 2020 | 6 Jun 2023 | British | 69 years |
| Stephen Shone | Director | 1 Jan 1999 | 4 Jun 2013 | British | 69 years |
| Sven Dean Farmer | Secretary | 8 May 1990 | 31 Mar 1996 | British | - |
| Thomas Mackenzie Ross | Director | 1 Jul 2001 | 20 May 2010 | British | 82 years |
| Thomas William Slee | Director | 8 May 1990 | 30 Apr 1999 | British | 85 years |
| Timothy David Melville Ross | Director | 1 Jun 1999 | 4 Jun 2013 | British | 82 years |
| Timothy Tookey | Director | 6 Apr 2020 | 3 Jun 2025 | British | 64 years |
| Timothy Walter Harris | Director | 19 May 2014 | 25 Jun 2019 | British | 57 years |
| Tracey Graham | Director | 10 Mar 2013 | 22 Mar 2022 | British | 61 years |
| Trevor Charles Bish Jones | Director | 14 Oct 2005 | 29 Apr 2010 | British | 66 years |