| Alison Marie Dillon | Secretary | 16 Feb 1993 | 4 Sept 1998 | British | - |
| Caroline Daphne Coomber | Secretary | 4 Sept 1998 | 4 Jan 2000 | British | - |
| Christopher Thomas Pearce | Director | 13 Dec 2004 | 26 Feb 2016 | British | 84 years |
| David John Stevens | Director | 16 Feb 1993 | 10 Mar 1995 | British | 75 years |
| Edinburgh Pharmaceutical Industries Limited | Corporate Director | 1 Jun 2001 | 27 Oct 2020 | United Kingdom | - |
| Hugh Robert Collum | Director | 16 Feb 1993 | 3 May 1996 | British | 85 years |
| Hugh Royston Jenkins | Director | 1 Jan 1997 | 31 Jul 2004 | British | 92 years |
| Ian Carmichael Borland | Director | 3 May 1996 | 30 Dec 1999 | British | 82 years |
| James Ralph Beery | Director | 10 Mar 1995 | 30 Dec 1999 | British | 84 years |
| James Robert Anthony Ford | Director | 1 Jun 2001 | 24 Oct 2006 | British | 59 years |
| John Michael Sadler | Director | 26 Oct 2020 | 29 Jul 2022 | British | 69 years |
| Julian Spenser Heslop | Director | 1 Jun 2001 | 2 Oct 2008 | British | 71 years |
| Karina Jane Bryant | Secretary | 4 Jan 2000 | 18 Jan 2002 | British | - |
| Moira Aileen Beckwith | Director | 26 Feb 2016 | 28 Jun 2018 | British | 62 years |
| Nicole Mullock | Director | 28 Jun 2018 | 23 Oct 2020 | British | 45 years |
| Richard Spencer Bushell | Director | 1 Jan 2000 | 31 May 2001 | British | 70 years |
| Robert Collinge | Director | 6 Aug 1992 | 9 Sept 2003 | British | 78 years |
| Robert Collinge | Director | 9 Sept 2003 | 7 Feb 2006 | British | 78 years |
| Robin David Broadley | Director | 18 Mar 1993 | 17 Dec 1996 | British | 92 years |
| Rupert Bondy | Director | 1 Jan 2000 | 1 Jun 2001 | British | 64 years |
| Simon Nicholas Wilbraham | Secretary | 4 Sept 1998 | 22 Feb 2001 | British | - |
| Stephen Thomas Crompton | Director | 16 Feb 1993 | 28 Feb 2001 | British | 79 years |