| Angus Robert Boag | Director | 18 Mar 1999 | 21 Jul 2006 | British | 67 years |
| Anthony Michael Brown | Director | 22 Nov 2002 | 18 Dec 2007 | British | 59 years |
| Charles James Griffiths | Director | 7 Dec 2023 | 1 Apr 2025 | British | 46 years |
| Daniel Stewart Rabin | Director | 27 May 2022 | 16 Jun 2023 | British | 48 years |
| Deepan Rasiklal Khiroya | Director | 4 Oct 2019 | 17 Sept 2020 | British | 56 years |
| Dennis Fink | Director | 14 Oct 2002 | 7 Oct 2010 | British | 77 years |
| Dominic James O'rourke | Director | 16 Jan 2013 | 14 Mar 2014 | British | 53 years |
| Filex Services Limited | Corporate Secretary | 25 Mar 1998 | 31 Mar 2008 | - | - |
| Harry Handelsman | Director | 19 Mar 1999 | 21 Jul 2006 | British | 77 years |
| Hermes Secretariat Limited | Corporate Secretary | 31 Mar 2008 | 18 Mar 2011 | United Kingdom | - |
| Ian Scott Bramley | Director | 19 Oct 2023 | 21 Nov 2023 | British | 63 years |
| Jack Matthew Busby | Director | 17 Aug 2018 | 4 Oct 2019 | British | 49 years |
| Jessica Mary Reedham Berney | Director | 19 Dec 2019 | 8 May 2025 | British | 44 years |
| John D'ardenne | Director | 25 Mar 1998 | 19 Mar 1999 | British | 74 years |
| John Hitchcox | Director | 19 Mar 1999 | 21 Jul 2006 | British | 65 years |
| John William Harrison | Director | 9 Oct 2000 | 21 Jul 2006 | British | 74 years |
| Joseph Saleem Shashou | Director | 18 Mar 1999 | 21 Jul 2006 | Brazilian | 71 years |
| Mark Arthur Lloyd | Director | 19 Mar 1999 | 14 Oct 2002 | British | 74 years |
| Martin Barber | Director | 21 Jul 2006 | 31 Mar 2008 | British | 82 years |
| Michael Albert Bibring | Director | 18 Mar 1999 | 21 Jul 2006 | British | 71 years |
| Neil David Hannay Meredith | Director | 31 Mar 2008 | 19 Dec 2019 | British | 67 years |
| Olivia Clare Troughton | Director | 16 Jan 2013 | 17 Aug 2018 | British | 57 years |
| Paul Richard Taylor | Director | 6 Oct 2005 | 20 Jun 2008 | British | 68 years |
| Pierre Yves Gerbeau | Director | 21 Jul 2006 | 16 Jan 2013 | French | 61 years |
| Rejinder Bangar | Director | 16 Jun 2023 | 19 Oct 2023 | British | 58 years |
| Richard Gary Balfour-lynn | Director | 18 Mar 1999 | 21 Jul 2006 | British | 73 years |
| Robert Charles Andrew Cosslett | Director | 18 Dec 2020 | 8 May 2025 | British | 37 years |
| Russell James Loveland | Director | 17 Sept 2020 | 27 May 2022 | British | 56 years |
| Tmf Corporate Administration Services Limited | Corporate Secretary | 18 Mar 2011 | 16 Jan 2013 | United Kingdom | - |
| William Anthony Hill | Director | 9 Oct 2000 | 6 Oct 2005 | British | 66 years |
| Xavier Pullen | Director | 21 Jul 2006 | 16 Jan 2013 | British | 75 years |
| Yiannakis Theophani Christodoulou | Director | 21 Jul 2006 | 7 Oct 2010 | British | 61 years |