| Alan Robert Robertson | Director | 1 Sept 2008 | 31 Dec 2023 | British | 64 years |
| Alison Taylor West | Secretary | 26 Feb 2001 | 31 Jul 2014 | British | - |
| Andries Johannes De Jong | Director | 17 May 2004 | 31 Dec 2008 | Dutch | 76 years |
| Brian Joseph Fitzpatrick | Director | 9 Jan 1995 | 30 Jun 1995 | Irish | 70 years |
| Ceri Suzanne Humphrey | Director | 1 Mar 2013 | 15 Nov 2021 | British | 55 years |
| David Finbarr Murphy | Director | 2 Mar 2009 | 4 May 2010 | British | 63 years |
| David John Griffin | Director | 1 Feb 2019 | 5 Apr 2024 | British | 53 years |
| Derek Waller | Director | 28 May 1991 | 4 May 2010 | British | 79 years |
| Derek Waller | Secretary | 28 May 1991 | 26 Feb 2001 | British | - |
| Henk Hendrik Wille Renier August Maria Janssen | Director | 17 May 2004 | 18 May 2009 | British | 72 years |
| James Elders | Director | 1 Nov 1994 | 31 Aug 2008 | British | 76 years |
| Jeffrey Paul Niehorster | Director | 28 May 1991 | 4 May 2010 | British | 74 years |
| John Anthony Cox | Director | 1 Oct 2018 | 25 Aug 2022 | Irish | 62 years |
| John Charles Davies | Director | 28 May 1991 | 31 Jul 1999 | British | 79 years |
| Jonathan Mark Suckling | Director | 23 Jul 2010 | 1 Feb 2019 | British | 54 years |
| Kevin Robert Taylor | Director | 18 Nov 1999 | 11 Dec 2000 | British | 60 years |
| Leon Antonius Maria Verweij | Director | 17 May 2004 | 18 May 2009 | Dutch | 66 years |
| Naomi Anne Connell | Director | 11 Jan 2010 | 16 Jul 2023 | British | 61 years |
| Neil Martin Gates | Director | 2 Jul 2001 | 20 Sept 2002 | British | 68 years |
| Nigel Anthony Fake | Director | 28 May 1991 | 31 Dec 1994 | British | 75 years |
| Patrick Alan Fitzpatrick | Director | 28 May 1991 | 17 May 2004 | British | 99 years |
| Pearlpiece Limited | Corporate Director | 17 May 2004 | 18 May 2009 | United Kingdom | - |
| Penelope Helene May Fitzpatrick | Director | 9 Jan 1995 | 17 May 2004 | French | 67 years |
| Richard Ernest Neville | Director | 28 May 1991 | 31 Dec 1994 | British | 94 years |
| Robert John Walter Reynolds | Director | 9 Jan 1995 | 31 Mar 2007 | British | 77 years |
| Steven John Fitzpatrick | Director | 28 May 1991 | 14 Jun 1991 | British | 66 years |