| Brandon Swim | Director | 2 Nov 2001 | 2 Jul 2014 | American | 54 years |
| Brandon Swim | Secretary | 2 Nov 2001 | 1 Nov 2005 | American | - |
| Brian Edward Buchan Reynolds | Director | 30 Sept 1997 | 30 Sept 2003 | British | 78 years |
| David John Mahoney | Director | 14 Mar 2014 | 8 Dec 2014 | British | 60 years |
| Glynne Stanfield | Secretary | 5 Jul 1994 | 24 Oct 1994 | British | - |
| Graham Southwell | Director | 30 Sept 1997 | 31 Aug 2006 | British | 81 years |
| Janine Grant | Secretary | 1 Nov 2005 | 15 Dec 2020 | British | - |
| Luca Rinaldo Contardo Padulli | Director | 5 Jul 1994 | 11 Nov 1999 | Italian | 71 years |
| Maria Vittoria Borgazzi Padulli | Director | 5 Jul 1994 | 7 Feb 1997 | Italian | 98 years |
| Martin Christoiher Barnett | Secretary | 7 Feb 1997 | 28 May 1999 | British | - |
| Michael Anthony Platt | Director | 19 Jul 2021 | 3 Sept 2024 | British | 60 years |
| Michael Francis Quicke | Director | 5 Oct 2005 | 2 Jul 2014 | British | 70 years |
| Peter Thomas Day | Director | 27 Aug 1991 | 31 Dec 2016 | British | 80 years |
| Richard Bruce Fiske Johnson | Director | 1 Oct 2002 | 31 Aug 2006 | British | 63 years |
| Richard Edward Keith Hutchings | Director | 7 Feb 1997 | 20 Jul 2001 | British | 62 years |
| Richard Edward Keith Hutchings | Secretary | 24 Oct 1994 | 7 Feb 1997 | British | - |
| Richard Edward Keith Hutchings | Secretary | 28 May 1999 | 14 Dec 1999 | British | - |
| Simon Peters | Secretary | 14 Dec 1999 | 20 Apr 2001 | British | - |
| Terence William Hopper | Director | 1 Oct 2002 | 31 Aug 2006 | British | 72 years |
| Timothy James Lawson | Director | 27 Aug 1991 | 7 Feb 1997 | British | 84 years |
| William Gavin Lee | Director | 1 Sept 2006 | 31 Dec 2016 | British | 62 years |
| William Kevin Kennedy | Secretary | 27 Aug 1991 | 5 Jul 1994 | British | - |
| Yvonne Taylor | Secretary | 15 Dec 2020 | 12 Feb 2025 | - | - |