| Alison Elizabeth Hutchinson | Director | 6 May 2014 | 31 Oct 2017 | British | 58 years |
| Allan Bridgewater | Director | 30 Sept 1996 | 31 Dec 1997 | British | 89 years |
| Andrew David Briggs | Director | 13 Apr 2015 | 24 Apr 2019 | British | 59 years |
| Andrew Stephen Melcher | Director | 13 Feb 2014 | 31 Dec 2014 | British | 76 years |
| Angela Charlotte Seymour-jackson | Director | 24 Aug 2010 | 31 Dec 2010 | British | 59 years |
| Angela Jane Darlington | Director | 6 Oct 2014 | 13 Apr 2015 | British | 57 years |
| Angela Jane Darlington | Director | 7 Aug 2019 | 30 Apr 2021 | British | 57 years |
| Annette Frances Howlett | Secretary | 20 Jun 1997 | 22 Sept 1999 | British | - |
| Aviva Company Secretarial Services Limited | Corporate Secretary | 1 Dec 2004 | 28 Jun 2007 | United Kingdom | - |
| Belinda Jane Richards | Director | 17 Apr 2015 | 28 Sept 2017 | British | 67 years |
| Bernard Andrew Curran | Director | 18 Sept 2012 | 7 Mar 2014 | British | 57 years |
| Bridget Fiona Mcintyre | Director | 20 May 1999 | 1 Sept 2000 | British | 64 years |
| Cathryn Elizabeth Riley | Director | 2 Aug 2004 | 22 May 2006 | British | 63 years |
| Cathryn Elizabeth Riley | Director | 2 Jul 2008 | 31 Dec 2008 | British | 63 years |
| Charles Andrew Anderson | Director | 1 Sept 2000 | 27 Sept 2001 | British | 70 years |
| Charlotte Claire Jones | Director | 5 Sept 2022 | 1 Apr 2024 | British | 57 years |
| Cheryl Margaret Agius | Director | 5 Jul 2021 | 16 May 2024 | Irish | 54 years |
| Christopher Brian Wei | Director | 1 Jan 2015 | 31 Jul 2015 | Canadian | 58 years |
| Clifford James Abrahams | Director | 1 Aug 2013 | 30 Jun 2015 | British | 58 years |
| Craig James Thornton | Director | 1 Aug 2012 | 8 Mar 2013 | British | 53 years |
| David Barclay Barral | Director | 1 Sept 2005 | 22 May 2006 | British | 63 years |
| David Barclay Barral | Director | 26 Mar 2009 | 13 Apr 2015 | British | 63 years |
| David Ernest Parker | Secretary | 22 Sept 1999 | 19 May 2000 | British | - |
| David Frederick Swiffen Rogers | Director | 10 Oct 2019 | 30 Oct 2020 | British | 69 years |
| David Philip Allvey | Director | 17 Apr 2015 | 31 Mar 2016 | British | 80 years |
| Edward Graham Jones | Director | 25 Sept 1996 | 30 Sept 1996 | British | 75 years |
| Edward Graham Jones | Secretary | 25 Sept 1996 | 27 May 1999 | British | - |
| Gary Nigel Withers | Director | 1 Sept 2002 | 31 Mar 2006 | British | 63 years |
| Geoffrey John Mason Shaw | Director | 9 May 1997 | 1 Sept 2000 | British | 82 years |
| Gillian Margaret Vance | Director | 1 Sept 2000 | 30 Nov 2004 | British | 71 years |
| Glen William James | Director | 18 Sept 1996 | 25 Sept 1996 | British | 73 years |
| Graham Stirling Boffey | Director | 5 Aug 2010 | 30 Nov 2012 | British | 62 years |
| Hiteshkumar Rameshchandra Patel | Director | 13 Feb 2014 | 31 Dec 2019 | British | 64 years |
| Hugh William Hessing | Director | 21 Jun 2011 | 6 Aug 2012 | British | 60 years |
| Iain Anthony Pearce | Director | 27 Nov 2020 | 1 Apr 2024 | British | 54 years |
| Ian Butterworth | Director | 5 Aug 2010 | 31 Dec 2010 | British | 72 years |
| James Allen Newman | Director | 22 Nov 2001 | 1 Jun 2005 | British | 61 years |
| James Anthony Heyworth-dunne | Director | 9 May 1997 | 31 Oct 1999 | British | 81 years |
| Jason Michael Windsor | Director | 7 Aug 2016 | 7 Aug 2019 | British | 53 years |
| Jason Michael Windsor | Director | 19 Oct 2020 | 20 May 2022 | British | 53 years |
| Jennifer Jane Wilman | Secretary | 27 Jun 2007 | 31 Jul 2015 | British | - |
| John Ainley | Director | 2 Aug 2004 | 31 Mar 2006 | British | 69 years |
| John Brendan O'roarke | Director | 8 Mar 2018 | 30 Jun 2021 | British | 67 years |
| John Robert Lister | Director | 1 Sept 2005 | 18 Apr 2012 | British | 67 years |
| John Robert Lister | Director | 13 Feb 2014 | 7 Aug 2016 | British | 67 years |
| John Russell Fotheringham Walls | Director | 13 Apr 2015 | 28 Feb 2018 | British | 81 years |
| Keith Jones | Director | 8 Nov 1999 | 1 Sept 2000 | British | 73 years |
| Keith William Abercromby | Director | 28 Nov 2005 | 14 Sept 2006 | British | 61 years |
| Lindsey Claire Rix | Director | 6 May 2020 | 14 Apr 2021 | British | 45 years |
| Mark Steven Hodges | Director | 19 May 2006 | 30 Apr 2010 | British | 60 years |
| Mary Elizabeth Ward | Secretary | 22 Sept 1999 | 29 Sept 2000 | British | - |
| Mel Gerard Carvill | Director | 21 Apr 2015 | 30 Jun 2022 | British,irish | 63 years |
| Michael John Hawker | Director | 1 Jan 2017 | 31 Mar 2017 | Australian | 66 years |
| Michael John Kellard | Director | 23 Feb 2024 | 1 Aug 2025 | British | 64 years |
| Michael Nicholas Biggs | Director | 1 Oct 1997 | 1 Sept 2000 | British | 73 years |
| Michael Norris Urmston | Director | 1 Sept 2000 | 28 Nov 2005 | British | 76 years |
| Michael Terence Kirsch | Director | 1 Sept 2000 | 22 May 2006 | British | 64 years |
| Monica Risam | Secretary | 1 Aug 2015 | 31 Aug 2017 | - | - |
| Nicholas Andrew Courtenay-smith | Director | 9 May 1997 | 31 Dec 2001 | British | 75 years |
| Nicolaos Nicandrou | Director | 16 Oct 2006 | 27 Apr 2009 | British | 60 years |
| Patrick Joseph Edward Smith | Director | 9 May 1997 | 21 Jul 1999 | British | 76 years |
| Patrick Joseph Robert Snowball | Director | 19 May 2006 | 3 May 2007 | British | 75 years |
| Peter Edward Hessey | Director | 1 Sept 2000 | 2 Aug 2004 | British | 74 years |
| Peter Robert Hales | Director | 1 Sept 2000 | 1 Sept 2005 | British | 79 years |
| Peter Thomas Johnson | Director | 2 Oct 2000 | 30 Jun 2001 | British | 71 years |
| Philip Craig Willcock | Director | 10 Aug 2011 | 2 Dec 2013 | British | 54 years |
| Philip Gordon Scott | Director | 9 May 1997 | 1 Jul 2003 | British | 71 years |
| Philip Martin White | Secretary | 29 Sept 2000 | 30 Nov 2004 | British | - |
| Richard John Harvey | Director | 25 Sept 1996 | 1 Sept 2000 | British | 75 years |
| Richard Karl Goeltz | Director | 13 Feb 2014 | 13 Apr 2015 | American | 83 years |
| Rob Ian Houghton | Director | 7 Feb 2011 | 18 Jun 2012 | English | 59 years |
| Robert William Albert Howe | Director | 13 Feb 2014 | 28 Mar 2023 | British | 76 years |
| Stephen Andrew Joseph Mann | Director | 29 Apr 2005 | 22 May 2006 | British | 60 years |
| Stephen Paul Trickett | Director | 2 Sept 2016 | 30 Aug 2023 | British | 68 years |
| Steven John Whittaker | Director | 18 Sept 1996 | 25 Sept 1996 | British | 58 years |
| Steven John Whittaker | Secretary | 18 Sept 1996 | 25 Sept 1996 | British | - |
| Thomas Anthony Kelly | Director | 9 May 1997 | 31 Jan 1998 | British | 83 years |
| Toby Emil Strauss | Director | 11 Feb 2009 | 23 May 2011 | British | 66 years |
| Valerie Frances Gooding | Director | 28 Feb 2018 | 23 Jul 2020 | British | 75 years |