| Alan Bennett | Director | 28 Apr 2005 | 31 Oct 2007 | British | 74 years |
| Alan Stewart Thompson | Director | 4 Jul 2007 | 28 Sept 2012 | British | 65 years |
| Allan Madsen | Director | 2 Mar 2017 | 19 Oct 2018 | Danish | 46 years |
| Andrew Mark Murfin | Director | 10 Jan 2001 | 10 Mar 2003 | British | 60 years |
| Arent Christian Kjaer | Director | 31 Mar 2011 | 17 Jan 2013 | Danish | 55 years |
| Bailey Jacob Bradley | Director | 13 Nov 2023 | 19 Jun 2024 | British | 49 years |
| Benjamin John Sykes | Director | 23 Apr 2014 | 29 Aug 2014 | British | 61 years |
| Benjamin Westwood | Director | 26 Jun 2020 | 1 Dec 2022 | British | 45 years |
| Centrica Secretaries Limited | Corporate Secretary | 27 Apr 2004 | 17 Feb 2017 | United Kingdom | - |
| Christopher Alec Morgan | Director | 8 Feb 2001 | 23 Dec 2003 | British | 68 years |
| Cliff Robert Pullen | Director | 9 Nov 2023 | 11 Jun 2025 | British | 51 years |
| David Paul Tilstone | Director | 31 Jan 2018 | 13 May 2019 | British | 57 years |
| Felix Pahl | Director | 18 Feb 2010 | 2 Jan 2012 | German | 50 years |
| Gearoid Martin Lane | Director | 23 Dec 2003 | 4 Jul 2007 | Irish | 62 years |
| Graeme Stuart Collinson | Director | 13 Feb 2009 | 5 Feb 2010 | British | 70 years |
| James Angus Sandon | Director | 31 Oct 2003 | 23 Dec 2003 | British | 60 years |
| James Spence | Director | 31 Oct 2007 | 23 Jun 2010 | British New Zealand | 58 years |
| Jochen Schiminski | Director | 13 Jan 2012 | 17 Feb 2017 | German | 47 years |
| John Kerr Shedden | Director | 10 Mar 2003 | 23 Dec 2003 | British | 63 years |
| John Lawson Stuart | Director | 17 Feb 2017 | 19 Oct 2018 | British | 58 years |
| Jonathan Brazier Duffy | Director | 13 May 2019 | 15 Sept 2022 | Irish | 49 years |
| Jordans (scotland) Limited | Corporate Nominee Director | 11 Dec 2000 | 10 Jan 2001 | United Kingdom | - |
| Karl Ben Smith | Director | 17 Feb 2017 | 23 Nov 2022 | Australian | 49 years |
| Kasper Holst Skyttegaard-nielsen | Director | 19 Oct 2018 | 26 Jun 2020 | Danish | 47 years |
| Mads Skovgaard-andersen | Director | 29 Aug 2014 | 17 Feb 2017 | Danish | 47 years |
| Mairi Susan Dudley | Director | 19 Oct 2018 | 30 Oct 2020 | British | 38 years |
| Martin Neubert | Director | 23 Jun 2010 | 31 Mar 2011 | German | 53 years |
| Matthew Porter | Director | 17 Feb 2017 | 19 Oct 2018 | British | 49 years |
| Matthew Porter | Director | 19 Oct 2018 | 16 Aug 2020 | British | 49 years |
| Michael James Langley | Director | 10 Jan 2001 | 26 Jul 2001 | British | 81 years |
| Michael John Garstang | Director | 13 Aug 2004 | 30 Jun 2008 | British | 78 years |
| Michael Ralph Kirwan | Director | 26 Jul 2001 | 31 May 2002 | British | 85 years |
| Nigel Gordon Slater | Director | 17 Feb 2017 | 31 Jan 2018 | British | 60 years |
| Nikolaj Qvade Rasmusen | Director | 23 Jun 2010 | 23 Apr 2014 | Danish | 60 years |
| Oswalds Of Edinburgh Limited | Corporate Nominee Secretary | 11 Dec 2000 | 10 Jan 2001 | United Kingdom | - |
| Partha Vasudev | Director | 17 Feb 2017 | 11 Oct 2019 | British | 50 years |
| Patrick Harnett | Director | 1 Feb 2013 | 1 Jun 2015 | British | 50 years |
| Paul Allan Spence | Director | 15 Oct 2003 | 23 Dec 2003 | British | 64 years |
| Paul Harper Wilson Mcadam | Director | 17 Feb 2017 | 25 Apr 2018 | British | 46 years |
| Peter Moore Quilleash | Director | 8 Feb 2001 | 31 Oct 2003 | British | 74 years |
| Richard Matthew Mccord | Director | 15 Feb 2011 | 12 Aug 2013 | British | 53 years |
| Richard Matthew Mccord | Director | 12 Aug 2013 | 17 Feb 2017 | British | 53 years |
| Richard Trevor Guy | Director | 1 Feb 2013 | 23 Apr 2014 | British | 47 years |
| Richard Trevor Guy | Director | 23 Apr 2014 | 29 Aug 2014 | British | 47 years |
| Robert Helms | Director | 17 Feb 2017 | 19 Oct 2018 | German | 52 years |
| Robert Malcolm Armour | Secretary | 10 Jan 2001 | 23 Dec 2003 | British | - |
| Robert William Marsden | Director | 24 Sept 2014 | 17 Feb 2017 | British | 52 years |
| Roger Carsten Ernst | Director | 5 Feb 2010 | 17 Feb 2017 | German | 61 years |
| Sarwjit Sambhi | Director | 23 Dec 2003 | 28 Apr 2005 | British | 57 years |
| Sarwjit Sambhi | Secretary | 23 Dec 2003 | 27 Apr 2004 | British | - |
| Simon Patrick Redfern | Director | 2 Sept 2010 | 28 Sept 2012 | British | 61 years |
| Simon Patrick Redfern | Director | 22 Nov 2012 | 17 Feb 2017 | British | 61 years |
| Simon Richard Clark | Director | 27 Apr 2004 | 4 Jul 2007 | British | 62 years |
| Simon Richard Weston Bliss | Director | 31 May 2002 | 19 Sept 2003 | British | 66 years |
| Susan Elizabeth Wheeler | Director | 4 Jul 2007 | 5 Feb 2010 | British | 62 years |
| Thomas Edward Hinton | Director | 23 Jun 2010 | 12 Aug 2013 | British | 47 years |
| Tony Lyon | Director | 16 Aug 2020 | 19 Jun 2024 | British | 66 years |
| Torsten Lodberg Smed | Director | 5 Feb 2010 | 23 Jun 2010 | Danish | 56 years |
| Wadzanai Kevan Mwaramba | Director | 1 Dec 2022 | 5 Dec 2024 | British | 42 years |
| Yumi Aizawa | Director | 29 Aug 2014 | 13 Feb 2015 | Japanese | 44 years |