| Adam Paul Rutherford | Secretary | 15 Mar 1997 | 20 Dec 1999 | British | - |
| Alexander Edward Seddon | Director | 26 Jul 2010 | 9 Aug 2010 | British | 50 years |
| Charles Robert Lowe | Director | 18 Mar 1996 | 24 Jan 2002 | British | 67 years |
| Cheick Tidjane Thiam | Director | 18 Apr 2008 | 29 Jun 2011 | French | 63 years |
| Clare Jane Bousfield | Director | 16 Mar 2020 | 22 Sept 2022 | British | 57 years |
| David Colin Doyle | Director | 2 Jun 2000 | 5 Oct 2001 | Australian | 59 years |
| David John Westby | Director | 14 May 1992 | 10 Mar 1995 | British | 83 years |
| David William King | Director | 8 Nov 2007 | 29 Sept 2023 | British | 63 years |
| Elisabeth Wenusch | Director | 4 Feb 2002 | 31 Mar 2023 | Austrian | 65 years |
| Gillian Kathleen Wood | Secretary | 24 Feb 1993 | 4 Sept 1995 | British | - |
| James White Jack | Director | 14 May 1992 | 7 Nov 1997 | British | 74 years |
| John William Foley | Director | 5 Oct 2001 | 23 Feb 2011 | British | 69 years |
| Jonathan Mark Brewis Daniels | Director | 30 Jul 2002 | 12 Jun 2020 | British | 62 years |
| Katherine Louise Jones | Director | 28 Mar 2018 | 18 Oct 2019 | British | 44 years |
| Kathryn Mcleland | Director | 22 Sept 2022 | 12 Sept 2025 | British | 54 years |
| Mark George Culmer | Director | 18 Nov 1997 | 2 Jun 2000 | British | 63 years |
| Michael David Cole | Director | 14 May 1992 | 19 Mar 1996 | British | 80 years |
| Michael John Denham | Director | 14 May 1992 | 14 Mar 1994 | British | 75 years |
| Michael John Lawrence | Director | 14 May 1992 | 31 Dec 1993 | British | 82 years |
| Nicolaos Andreas Nicandrou | Director | 30 Jun 2011 | 17 Jul 2017 | British | 60 years |
| Peter Robert Rawson | Secretary | 14 May 1992 | 24 Feb 1993 | British | - |
| Philip Arthur John Broadley | Director | 5 Oct 2001 | 18 Apr 2008 | British | 64 years |
| Prudential Group Secretarial Services Limited | Corporate Secretary | 30 Jul 2002 | 4 Oct 2019 | United Kingdom | - |
| Raymond Paul Newby | Director | 20 Feb 2017 | 3 Dec 2021 | British | 54 years |
| Richard Anthony Monnington | Director | 22 Sept 2022 | 30 May 2025 | British | 51 years |
| Robert Walker | Secretary | 2 Jul 2001 | 30 Jul 2002 | British | - |
| Roger Charles Fishwick | Director | 14 Mar 1994 | 16 Dec 1999 | British | 72 years |
| Stuart James Turner | Director | 19 Dec 2017 | 6 Mar 2018 | British | 56 years |
| Tracey Lee Wellard | Secretary | 4 Sept 1995 | 15 Mar 1997 | British | - |
| Vanessa Frances Ruparel | Secretary | 20 Dec 1999 | 2 Jul 2001 | British | - |