| Andrew Richard Morris | Director | 3 Mar 1994 | 22 Feb 1999 | British | 75 years |
| Carlos Maria Criado Perez Trefault | Director | 16 Aug 1999 | 8 Mar 2004 | British | - |
| Charles Martyn Jones | Director | 20 Nov 2009 | 9 Sept 2010 | British | 68 years |
| Charles Sharpe Lawrie | Director | 23 Jul 1991 | 31 Mar 1994 | British | 93 years |
| Colin Deverell Smith | Director | 23 Jul 1991 | 22 Nov 1999 | British | 79 years |
| David Bernard Bootle | Director | 23 Jul 1991 | 23 Jul 1994 | British | 91 years |
| David Gordon Comyn Webster | Director | 23 Jul 1991 | 7 Dec 1993 | British | 81 years |
| David Gordon Comyn Webster | Director | 10 Jan 2000 | 8 Mar 2004 | British | 81 years |
| David John Howard Huber | Director | 23 Jul 1991 | 27 Mar 1997 | British | 77 years |
| David John Lepley | Director | 30 Jan 2020 | 15 Apr 2024 | British | 43 years |
| David Robert Hutchinson | Director | 9 Mar 2004 | 29 Jun 2007 | British | 78 years |
| David Wilson | Director | 18 Sept 2001 | 9 Mar 2004 | British | 66 years |
| David Wilson | Secretary | 18 Sept 2001 | 9 Mar 2004 | British | - |
| Fernando Garcia Valencia | Director | 11 Mar 2002 | 19 Mar 2004 | Spanish | 59 years |
| Fiona Jane Bailey | Director | 24 Jun 2001 | 9 Jan 2004 | British | 72 years |
| Frederick Nairn Glen | Director | 23 Jul 1991 | 13 Oct 1994 | British | 78 years |
| Gary William Mills | Director | 18 Feb 2016 | 30 Jan 2020 | British | 60 years |
| Gordon Peter Mowat | Director | 14 Nov 2014 | 1 Apr 2015 | British | 55 years |
| Gordon Wotherspoon | Director | 23 Jul 1991 | 8 May 2000 | British | 79 years |
| Gregory Joseph Mcmahon | Director | 20 Nov 2009 | 11 Jan 2013 | British | 66 years |
| Gregory Joseph Mcmahon | Secretary | 16 Mar 2009 | 18 Nov 2009 | British | - |
| Hazel Jones | Secretary | 18 Nov 2009 | 26 Jun 2015 | - | - |
| Ian Ellis Fraser | Director | 29 Feb 1996 | 10 Dec 1999 | British | 69 years |
| Jack Loudon Sinclair | Director | 24 Jun 2001 | 8 Mar 2004 | British | 66 years |
| James Alfred White | Director | 24 Jun 2001 | 25 Jun 2004 | British | 74 years |
| James Maclachlan | Director | 24 Jun 2001 | 14 May 2003 | British | 71 years |
| John Patrick Durkan | Director | 31 May 2002 | 5 May 2004 | British | 62 years |
| John Patrick Kinch | Director | 23 Jul 1991 | 13 Oct 2001 | British | 82 years |
| John Patrick Kinch | Secretary | 23 Jul 1991 | 17 Sept 2001 | British | - |
| Jonathan James Burke | Secretary | 9 Mar 2004 | 16 Mar 2009 | British | - |
| Jonathan Owen Davies | Director | 24 Jun 2001 | 11 Jun 2004 | British | 64 years |
| Karen Bray | Director | 24 Jun 2001 | 4 Jun 2003 | British | 65 years |
| Lawrence Christensen | Director | 23 Jul 1991 | 18 Jun 2004 | British | 83 years |
| Marie Margaret Melnyk | Director | 9 Mar 2004 | 6 Dec 2006 | British | 68 years |
| Mark Gunter | Director | 9 Mar 2004 | 15 Jul 2011 | British | 68 years |
| Mark Harrison | Director | 18 Apr 2012 | 18 Feb 2016 | British | 63 years |
| Mark Rowan Amsden | Director | 7 Feb 2013 | 22 Feb 2017 | Australian | 63 years |
| Mark Rowan Amsden | Secretary | 9 Jul 2015 | 22 Feb 2017 | - | - |
| Mark Terence Aylwin | Director | 31 May 2002 | 1 Jan 2005 | British | 63 years |
| Martin Ackroyd | Director | 9 Mar 2004 | 25 May 2005 | British | 75 years |
| Matthew Alistair Grant | Director | 23 Jul 1991 | 7 Dec 1993 | British | 89 years |
| Matthew Logan Taylor | Director | 23 Jul 1991 | 14 Jun 1995 | British | 82 years |
| Michael Gleeson | Director | 18 Dec 2019 | 22 Apr 2022 | Irish | 57 years |
| Michael Winch | Director | 23 Jul 1991 | 9 Feb 2000 | British | 81 years |
| Niall Addison | Director | 20 Nov 2009 | 1 Apr 2015 | British | 80 years |
| Patrick Oliver Kieran | Director | 23 Jul 1991 | 31 Dec 1995 | Irish | 88 years |
| Paul Anthony Frendo | Director | 23 Jul 1991 | 31 Jan 1994 | British | 79 years |
| Richard Glynne Williams | Director | 28 Apr 1994 | 8 Mar 2004 | British | 69 years |
| Richard John Pennycook | Director | 1 May 2006 | 10 Apr 2013 | British | 62 years |
| Richard Lancaster | Director | 20 Nov 2009 | 13 Apr 2012 | British | 63 years |
| Richard Phillip Francis | Director | 3 Sept 2001 | 19 Mar 2004 | British | 64 years |
| Robert George Beattie Charters | Director | 13 Jun 1996 | 27 Mar 1998 | British | 73 years |
| Robert Winston Stott | Director | 8 Mar 2004 | 29 Sept 2006 | British | 83 years |
| Roger Anthony Owen | Director | 2 Dec 2004 | 1 Feb 2009 | British | 78 years |
| Roger Charles Ramsden | Director | 14 Oct 1997 | 4 May 2001 | British | 66 years |
| Roger Evans Partington | Director | 12 Jan 1994 | 22 Jul 1999 | British | 70 years |
| Simon Timothy Laffin | Director | 13 Oct 1994 | 8 Mar 2004 | British | 67 years |
| Stephen John Webb | Director | 20 Aug 2001 | 19 Mar 2004 | British | 69 years |
| Sydney Herbert Marsden Brown | Director | 23 Jul 1991 | 24 Apr 1993 | British | 87 years |
| Terrance Hartwell | Director | 20 Nov 2009 | 14 Nov 2014 | British | 70 years |
| Thomas Gartland | Director | 23 Jul 1991 | 24 Apr 1993 | British | 86 years |
| Trevor John Strain | Director | 4 Dec 2009 | 18 Dec 2019 | British | 51 years |