| Andrew David Gibson | Director | 28 Jan 1998 | 9 May 2003 | British | 76 years |
| Caroline Janet Banszky | Director | 21 Jun 2002 | 31 Aug 2016 | British | 73 years |
| Christopher Charles Biddulph Duffett | Director | 6 Jun 1997 | 20 Jun 2002 | British | 83 years |
| Colin Robertson | Director | 1 Jan 2015 | 1 Jan 2018 | British | 73 years |
| David James Evans | Director | 4 Apr 2014 | 28 Feb 2018 | British | 70 years |
| Edward Stanley Thomas | Director | 29 Apr 2003 | 26 Feb 2013 | British | 81 years |
| John Anderson Kay | Director | 30 Apr 2009 | 9 Apr 2014 | British | 78 years |
| John Kenneth Howell | Secretary | 6 Jun 1997 | 5 Sept 1997 | British | - |
| Kenneth William Ballard Inglis | Director | 27 Sept 2002 | 30 Apr 2009 | British | 83 years |
| Michael Andrew Caldicott | Director | 6 Jun 1997 | 5 Sept 1997 | British | 75 years |
| Michael Charles Adams | Director | 26 Sept 2016 | 22 Oct 2017 | British | 63 years |
| Peter Michael Skeggs | Director | 23 Dec 1997 | 27 Sept 2002 | British | 75 years |
| Richard Forbes Thomas | Director | 6 Jun 1997 | 3 Apr 2003 | British | 82 years |
| Richard John Moody | Director | 1 Jun 2016 | 28 Feb 2018 | British | 61 years |
| Richard William Main | Director | 6 Jun 2003 | 4 Apr 2014 | British | 73 years |
| Sg Kleinwort Hambros Trust Company (uk) Limited | Corporate Director | 23 Dec 1997 | 1 Jan 2018 | United Kingdom | - |
| Simone Gerarda Johanna Lavelle | Director | 9 Apr 2013 | 11 Jul 2013 | Dutch | 59 years |
| Stephen William Spencer Norton | Director | 29 Jun 2007 | 1 Mar 2016 | British | 67 years |
| Trudi Anne Elkington | Director | 8 Jun 1998 | 21 Oct 2003 | British | 60 years |
| William John Rowland | Director | 21 Oct 2003 | 29 Jun 2007 | British | 70 years |