| Amar Darira | Director | 1 Apr 2014 | 31 Mar 2020 | American | 77 years |
| Angus Patrick Murray | Director | 1 Jan 1997 | 1 Jul 1997 | British | 72 years |
| Anita Yuen Mei Fung | Director | 9 May 2005 | 31 May 2011 | Chinese | 66 years |
| Anthony Francis Rademeyer | Director | 8 Apr 2003 | 30 Apr 2004 | Belgian | 68 years |
| Anthony Stephen Woodward | Director | 8 Apr 1992 | 30 Jun 1999 | British | 73 years |
| Antony John Shaw | Director | 25 Aug 2015 | 28 Feb 2020 | Australian | 53 years |
| Chaitanya Vankayala | Secretary | 29 Jan 2021 | 17 Mar 2023 | - | - |
| Christopher John O'malley | Director | 8 Apr 1992 | 22 Jan 1996 | British | 76 years |
| Darren Salvatore Furnarello | Director | 17 Oct 2012 | 23 Feb 2016 | British | 53 years |
| David Clark Jacob | Director | 1 Jan 1997 | 31 Oct 1997 | British | 65 years |
| David Clark Jacob | Director | 20 Nov 2006 | 30 Sept 2008 | British | 65 years |
| David Gelber | Director | 1 Oct 1992 | 3 Mar 1994 | Canadian | 79 years |
| Didier Georges Philippe Stoessel | Director | 16 Sept 1999 | 14 Dec 2001 | French | 63 years |
| Frances Julie Niven | Secretary | 1 Aug 2005 | 27 Apr 2006 | British | - |
| Geoffrey Stephen Clarkson | Director | 8 Apr 1992 | 31 Dec 1994 | British | 77 years |
| Graham Hay Macnaughton | Director | 1 Nov 2003 | 30 Apr 2005 | British | 68 years |
| Hannah Elizabeth Shepherd | Secretary | 5 Jan 2015 | 25 Aug 2015 | - | - |
| Harunobu Yamada | Director | 16 Jan 1998 | 4 Jun 2007 | Japanese | 76 years |
| Hollie Rheanna Wood | Secretary | 22 Sept 2010 | 7 Feb 2012 | - | - |
| Isao Takahashi | Director | 1 Jan 1997 | 31 Oct 2003 | Japanese | 83 years |
| John Murray Charlton Jones | Director | 1 Jan 1997 | 16 Sept 1999 | British | 66 years |
| Junghwa Aitken | Director | 1 Aug 2005 | 20 Nov 2006 | British | 66 years |
| Kaber Andrew Mclean | Director | 7 Feb 2012 | 18 Apr 2016 | British | 56 years |
| Kaoru Shioya | Director | 19 Jun 2001 | 19 Nov 2004 | Japanese | 76 years |
| Karen Lyon | Secretary | 7 Feb 2012 | 25 Mar 2013 | - | - |
| Katherine Dean | Secretary | 25 Mar 2013 | 26 Nov 2013 | - | - |
| Kenichi Tatsuzawa | Director | 1 Jan 2009 | 31 Mar 2014 | Japanese | 63 years |
| Kitchen Sara | Director | 1 Jun 2011 | 3 Oct 2016 | British | 57 years |
| Krishna Patel | Director | 16 Sept 1999 | 9 May 2005 | British | 78 years |
| Larissa Wilson | Secretary | 25 Aug 2015 | 28 Apr 2017 | - | - |
| Lorna Youssouf | Secretary | 28 Apr 2017 | 21 Sept 2018 | - | - |
| Malcolm Stuart Rule | Director | 31 Dec 1994 | 7 Dec 1995 | British | 66 years |
| Mark Ivan Boyne | Director | 30 Mar 2007 | 31 May 2011 | British | 61 years |
| Mark Vivian Pearce | Secretary | 11 Feb 2003 | 12 May 2004 | British | - |
| Masayuki Kaneko | Director | 15 Apr 2019 | 28 Feb 2020 | Japanese | 55 years |
| Matthew Gold | Director | 2 May 2018 | 30 Jun 2021 | Australian | 50 years |
| Michael David Hancock | Director | 9 Nov 2005 | 31 Dec 2008 | British | 65 years |
| Michael Guy Hilliard Heald | Director | 1 Jan 1997 | 31 Oct 2003 | British | 76 years |
| Minoru Yoshida | Director | 1 Jan 1997 | 31 Dec 1999 | Japanese | 74 years |
| Naoya Ozawa | Director | 1 Jan 1997 | 31 Dec 1998 | Japanese | 87 years |
| Nicola Carol Hopkins | Secretary | 30 Sept 2019 | 29 Jan 2021 | - | - |
| Nicola Suzanne Black | Secretary | 5 Oct 2000 | 11 Feb 2003 | British | - |
| Olivier Pacton | Director | 18 Apr 2016 | 13 Aug 2019 | French | 64 years |
| Paul Andrew Stafford | Secretary | 11 Sept 1997 | 5 Oct 2000 | British | - |
| Pauline Louise Mcquillan | Secretary | 27 Apr 2006 | 29 Aug 2008 | British | - |
| Raymond John Alexander | Director | 8 Apr 1992 | 30 Jun 1999 | British | 77 years |
| Raymond Joseph Soudah | Director | 8 Apr 1992 | 30 Sept 1992 | Cypriot | 76 years |
| Rebecca Louise Poole | Secretary | 12 May 2004 | 1 Aug 2005 | British | - |
| Richard Charles Boynton Gardner | Director | 3 Oct 2016 | 30 Apr 2018 | British | 55 years |
| Richard Tickner | Director | 8 Apr 1992 | 16 Sept 1999 | British | 75 years |
| Richard William Quin | Secretary | 8 Apr 1992 | 10 Jan 1995 | Irish | - |
| Richard William Quin | Secretary | 1 Oct 1995 | 11 Sept 1997 | Irish | - |
| Robert Blackburn Gray | Director | 16 May 1994 | 31 Aug 2006 | British | 76 years |
| Robert Ian Wall | Director | 24 May 2016 | 15 Apr 2019 | Canadian | 48 years |
| Romana Lewis | Secretary | 27 Sept 2018 | 30 Sept 2019 | - | - |
| Sarah Caroline Gott | Secretary | 29 Aug 2008 | 22 Sept 2010 | British | - |
| Shahkar Mossaheb | Director | 1 Jul 1997 | 19 Mar 1999 | British | 75 years |
| Simon Douglas Brookhouse | Director | 31 Aug 2006 | 29 Jan 2008 | British | 64 years |
| Stuart Duncan Pearce | Director | 1 Jan 1999 | 7 Mar 2001 | British | 74 years |
| Stuart Paterson Milne | Director | 1 Sept 2009 | 25 Jan 2012 | British | 66 years |
| Stuart Thomson Gulliver | Director | 1 Jan 1997 | 28 Apr 1998 | British | 67 years |
| Surendranath Rosha | Director | 1 Jun 2011 | 30 Jun 2015 | Indian | 58 years |
| Tony Bhambhra | Secretary | 26 Nov 2013 | 5 Jan 2015 | - | - |
| Vanessa Indira Garnham | Secretary | 10 Jan 1995 | 1 Oct 1995 | British | - |
| Yoji Oka | Director | 1 Jan 1997 | 31 Dec 2001 | Japanese | 91 years |
| Yoneo Sakai | Director | 4 Jun 2007 | 1 Jan 2010 | Japanese | 78 years |