| Alan George Pendleton | Director | 7 Jun 1991 | 19 Oct 1999 | British | 98 years |
| Alan Howard Mitchell Kelsey | Director | 18 Dec 2003 | 1 Sept 2017 | British | 77 years |
| Alasdair Marnoch | Director | 27 Jun 2006 | 18 Aug 2008 | British | 63 years |
| Andrew Michael Goodwin | Director | 11 May 2009 | 15 May 2009 | British | 52 years |
| Anthony Whalley | Director | 7 Jun 1991 | 21 Feb 1997 | British | 85 years |
| Antonius Jacobus Cornelis Van Vilsteren | Director | 11 Sept 2018 | 4 Apr 2025 | Dutch | 56 years |
| David Andrew Gordon Smith | Director | 1 Sept 2007 | 4 Oct 2010 | British | 70 years |
| David Andrew Gordon Smith | Secretary | 9 Jan 2008 | 4 Oct 2010 | British | - |
| David Austin Trippier | Director | 13 Jan 1997 | 31 Dec 2006 | British | 80 years |
| David John Walker | Director | 7 Jun 1991 | 8 Nov 1995 | British | 70 years |
| David William Johnson | Director | 7 Jun 1991 | 31 Jan 2004 | British | 69 years |
| David William Johnson | Secretary | 7 Jun 1991 | 13 Jan 1997 | British | - |
| Derek Green | Director | 19 Oct 1999 | 31 Dec 2003 | British | 86 years |
| Dye & Durham Secretarial Limited | Corporate Secretary | 15 Nov 2019 | 30 Jun 2023 | United Kingdom | - |
| Elizabeth Jill Tarn | Secretary | 24 Jan 2007 | 9 Jan 2008 | British | - |
| Felicity Margaret Sue Goodey | Director | 19 Oct 1999 | 31 Dec 2007 | British | 77 years |
| Graeme Robert Halder | Director | 4 Oct 2010 | 11 Sept 2018 | British | 64 years |
| Hannah Ruth Metcalf | Secretary | 26 Apr 2005 | 15 Nov 2006 | British | - |
| Inderjit Dehal | Director | 8 Sept 2017 | 28 Oct 2025 | British | 58 years |
| Jack Hennessy | Director | 18 Aug 2008 | 1 Sept 2017 | Australian | 57 years |
| John Graham Carr | Director | 18 Jun 1998 | 31 Jan 2001 | British | 81 years |
| Kevin Joseph Mcneany | Director | N/A | 14 Jan 2005 | Irish | 83 years |
| Kosmas Kalliarekos | Director | 18 Aug 2008 | 1 Sept 2017 | Greek/american | 61 years |
| Lorene Simpson | Director | 1 Jan 1997 | 26 Apr 2005 | British | 64 years |
| Lorene Simpson | Secretary | 13 Jan 1997 | 26 Apr 2005 | British | - |
| Mark Andrew Orrow-whiting | Director | 8 Sept 2017 | 2 Oct 2023 | British | 57 years |
| Michel Jean Herve Aloe | Director | 7 Jun 1991 | 20 Dec 1993 | French | 77 years |
| Rosamund Margaret Marshall | Director | 26 Jul 2006 | 30 Sept 2008 | British | 67 years |
| Stephen Hugh Henwood | Director | 25 Jan 2007 | 18 Aug 2008 | British | 73 years |
| Stephen Hyde | Director | 21 Sept 2005 | 31 Aug 2007 | British | 70 years |
| Stephen Hyde | Secretary | 15 Nov 2006 | 24 Jan 2007 | British | - |