| Adam Charles Little | Director | 3 Aug 2005 | 1 Aug 2007 | British | 75 years |
| Alan Michael Moncrieffe Maclachlan | Director | 31 Dec 1988 | 20 Oct 1989 | British | 80 years |
| Alan Michael Moncrieffe Maclachlan | Director | 15 Jul 1999 | 31 Oct 2000 | British | 80 years |
| Alan Paul Busson | Director | 31 Oct 2000 | 1 Dec 2001 | British | 66 years |
| Alan Paul Busson | Secretary | 31 Aug 1991 | 1 May 2001 | British | - |
| Andrew Michael Moore | Director | 18 Jun 2021 | 28 May 2022 | British | 62 years |
| Benedict John Spurway Mathews | Director | 17 Dec 2019 | 18 Jun 2021 | British | 59 years |
| Douglas Patrick Chapman | Director | 1 Dec 2001 | 1 Feb 2003 | British | 76 years |
| Francis William Michael Starkie | Director | 1 Dec 2001 | 30 Sept 2009 | British | 77 years |
| Gerald Digby Torrington Owen | Director | 30 Sept 1991 | 3 Nov 1992 | British | 91 years |
| James Grant Nemeth | Director | 1 Feb 2003 | 3 Aug 2005 | Us Citizen | 69 years |
| Jens Bertelsen | Director | 10 Oct 2011 | 17 Dec 2019 | British | 67 years |
| John Antony Heath | Director | 20 Oct 1989 | 29 Jun 1990 | British | 89 years |
| John Powell Turner | Director | 30 Sept 1991 | 31 Oct 2000 | British | 80 years |
| Michael Cooper | Director | 31 Dec 1988 | 30 Sept 1991 | British | 89 years |
| Patrick Herbert Foster | Director | 31 Oct 2000 | 1 Dec 2001 | British | 79 years |
| Philip Robert Sutherland Howie | Secretary | 31 Dec 1988 | 31 Aug 1991 | British | - |
| Rebecca Jayne Wright | Secretary | 12 Apr 2001 | 30 Jun 2010 | Other | - |
| Richard Wheatley | Director | 28 May 2022 | 12 May 2023 | British | 53 years |
| Robert Carl Fearnley | Director | 1 Aug 2007 | 10 Oct 2011 | British | 63 years |
| Robert Jan Gerritsen | Director | 18 Jun 2021 | 28 May 2022 | Dutch | 46 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 7 Oct 2014 | British | 60 years |
| Ronald Stewart Paterson | Director | 20 Oct 1989 | 15 Jul 1999 | British | 88 years |
| Stanley Edward Churchfield | Director | 31 Dec 1988 | 14 Oct 1991 | British | 100 years |
| Terence Michael Thornton | Director | 7 Oct 2014 | 31 Mar 2021 | British | 63 years |
| Yasin Stanley Ali | Secretary | 25 Feb 2008 | 30 Jun 2010 | - | - |