| Adrian Geoffrey Knight | Director | 10 Dec 2004 | 5 Jan 2005 | British | 68 years |
| Andrew John Sukawaty | Director | 5 Jan 2005 | 14 Jan 2008 | American | 70 years |
| Andrew Kennedy Harley | Director | 1 Jan 2007 | 31 Mar 2008 | British | 65 years |
| Anselmo Enriquez Linares | Director | 17 Jul 2008 | 1 Oct 2011 | British | 61 years |
| Antonio Marti Ciruelos | Director | 1 Aug 2011 | 1 Oct 2011 | Spanish | 63 years |
| Antonio Viana-baptista | Director | 23 Jan 2006 | 19 Dec 2007 | Portuguese | 68 years |
| Antonio Viana-baptista | Director | 23 Jan 2006 | 1 Oct 2011 | Portuguese | 68 years |
| Catherine Jane Keers | Director | 1 Feb 2008 | 28 Nov 2011 | British | 60 years |
| Cesar Alierta Izuel | Director | 23 Jan 2006 | 16 Jan 2008 | Spanish | 80 years |
| Danuta Gray | Director | 23 Jan 2006 | 30 Nov 2010 | British | 67 years |
| David Christopher Chance | Director | 5 Jan 2005 | 23 Jan 2006 | British | 68 years |
| David James Finch | Director | 5 Jan 2005 | 30 Apr 2007 | British | 69 years |
| David Paul Mcglade | Director | 5 Jan 2005 | 31 Mar 2005 | American | 65 years |
| David Williams | Director | 1 Jan 2007 | 15 Feb 2008 | British | 67 years |
| Eduardo Zaplana Hernandez-soro | Director | 17 Jul 2008 | 1 Oct 2011 | Spanish | 69 years |
| Enrique Medina Malo | Director | 1 Oct 2011 | 30 Sept 2016 | Spanish | 53 years |
| Eva Maria Castillo Sanz | Director | 17 Sept 2012 | 5 Mar 2014 | Spanish | 63 years |
| Ian Keith Meakins | Director | 5 Jan 2005 | 30 Mar 2005 | British | 69 years |
| Jaime Smith Basterra | Director | 23 Jan 2006 | 31 May 2009 | Spanish | 60 years |
| Jose Maria Alvarez-pallete Lopez | Director | 19 Sept 2006 | 16 Jan 2008 | Spanish | 62 years |
| José María Álvarez-pallete López | Director | 1 Oct 2011 | 17 Sept 2012 | Spanish | 62 years |
| Judith Mary Gibbons | Director | 1 Sept 2005 | 23 Jan 2006 | British | 68 years |
| Julio Linares Lopez | Director | 23 Jan 2006 | 28 Nov 2011 | Spanish | 80 years |
| Justine Campbell | Director | 12 Mar 2007 | 29 Dec 2008 | Irish | 55 years |
| Katherine Ann Jarvis | Director | 1 Feb 2010 | 1 Oct 2011 | British | 58 years |
| Kathleen Anne O'donovan | Director | 30 Mar 2005 | 23 Jan 2006 | British | 68 years |
| Luis Antonio Malvido | Director | 1 Feb 2010 | 1 Oct 2011 | Argentinian | 61 years |
| Luis Javier Bastida Ibargauen | Director | 23 Apr 2008 | 28 Nov 2011 | Spanish | 80 years |
| Luis Ángel Prendes Arroyo | Director | 17 Jun 2021 | 15 Feb 2024 | Spanish | 59 years |
| Maria Pilar Lopez Alvarez | Director | 12 Mar 2007 | 31 Jul 2011 | Spanish | 55 years |
| Maria Pilar Lopez Alvarez | Director | 1 Oct 2011 | 28 Feb 2015 | Spanish | 55 years |
| Mark Evans | Director | 30 Sept 2016 | 17 Jun 2021 | British | 56 years |
| Matthew David Key | Director | 23 Jan 2006 | 1 Oct 2011 | British | 62 years |
| O2 Secretaries Limited | Corporate Secretary | 27 Mar 2020 | 17 Jun 2021 | United Kingdom | - |
| Patricia Cobian | Director | 7 Nov 2011 | 17 Jun 2021 | Spanish | 50 years |
| Patrick Lawrence Lupo | Director | 5 Jan 2005 | 23 Jan 2006 | American | 74 years |
| Peter Anthony Erskine | Director | 5 Jan 2005 | 31 Dec 2007 | British | 74 years |
| Peter Anthony Erskine | Director | 1 Feb 2008 | 28 Nov 2011 | British | 74 years |
| Peter David Spencer King | Director | 10 Dec 2004 | 5 Jan 2005 | British | 65 years |
| Peter David Spencer King | Secretary | 10 Dec 2004 | 5 Jan 2005 | British | - |
| Philip Nicholas Bramwell | Secretary | 5 Jan 2005 | 31 Oct 2006 | British | - |
| Rene Schuster | Director | 1 Jun 2009 | 1 Oct 2011 | German | 64 years |
| Richard Charles Poston | Director | 1 Jan 2007 | 30 Sept 2016 | British | 66 years |
| Robert John Harwood | Secretary | 31 Oct 2006 | 27 Mar 2020 | British | - |
| Ronan James Dunne | Director | 1 Jan 2008 | 1 Aug 2016 | Irish | 62 years |
| Rudolf Groeger | Director | 5 Jan 2005 | 28 Jun 2007 | German | 71 years |
| Rudolf Lamprecht | Director | 30 Mar 2005 | 23 Jan 2006 | German | 77 years |
| Sally Anne Ashford | Director | 1 Oct 2011 | 31 Dec 2014 | British | 55 years |
| Salvador Anglada Gonzalez | Director | 21 Jun 2007 | 31 Jan 2010 | Spanish | 60 years |
| Santiago Fernandez Valbuena | Director | 12 Mar 2007 | 16 Jan 2008 | Spanish | 67 years |
| Sohail Qadri | Director | 23 Jan 2006 | 12 Mar 2007 | British | 65 years |
| Stephen John Shurrock | Director | 1 Dec 2010 | 1 Oct 2011 | British | 54 years |
| Stephen Murley Garfield Hodge | Director | 5 Jan 2005 | 23 Jan 2006 | British | 83 years |
| Thomas David Guy Arculus | Director | 5 Jan 2005 | 28 Nov 2011 | British | 79 years |
| Trevor Anthony Healy | Director | 1 Feb 2010 | 30 Jun 2011 | Irish | 54 years |
| Vivek Dev | Director | 12 Mar 2007 | 31 Dec 2008 | British | 67 years |