| Alan George Burns | Director | 3 Dec 2012 | 3 Apr 2019 | British | 50 years |
| Ashley Alexander Grist | Director | 9 Sept 2009 | 20 Oct 2010 | British | 60 years |
| Christine Anne Chandler | Nominee Director | 19 Nov 1993 | 21 Feb 1994 | British | 70 years |
| Christopher Lindsay Christian | Director | 13 Oct 1995 | 29 Sept 1997 | British | 75 years |
| Dawn Elizabeth Knight | Director | 10 May 1994 | 28 Apr 1995 | British | 64 years |
| Dawn Elizabeth Knight | Secretary | 21 Feb 1994 | 28 Apr 1995 | British | - |
| Derek Davies | Director | 16 Aug 2010 | 14 Dec 2012 | British | 62 years |
| Edinburgh Pharmaceutical Industries Limited | Corporate Director | 29 Sept 1997 | 17 Dec 2021 | United Kingdom | - |
| Gisela Maria Aloisia Gledhill | Director | 21 Feb 1994 | 30 Jun 1995 | Austrian | 81 years |
| Glaxo Group Limited | Corporate Director | 29 Sept 1997 | 17 Dec 2021 | United Kingdom | - |
| James Borger | Director | 25 Feb 2019 | 17 Dec 2021 | American | 62 years |
| John Michael Sadler | Director | 17 Dec 2021 | 29 Jul 2022 | British | 69 years |
| Jonathan Laurence Patrick Hyde | Director | 5 Jul 1995 | 13 Oct 1995 | British | 72 years |
| Jonathan Mark Bolton | Director | 14 Jun 1995 | 29 Sept 1997 | British | 59 years |
| Jonathan Mark Bolton | Secretary | 28 Apr 1995 | 29 Sept 1997 | British | - |
| Justin Southworth Court | Director | 21 Feb 1994 | 30 Jun 1995 | British | 76 years |
| Lorraine Anne Day | Secretary | 8 May 1998 | 16 Jan 2006 | British | - |
| Oleg Dubianskij | Director | 31 Jan 2017 | 13 Feb 2019 | Lithuanian | 53 years |
| Philip Graham Watt | Secretary | 29 Sept 1997 | 8 May 1998 | British | - |
| Robert Arthur Reeve | Nominee Director | 19 Nov 1993 | 21 Feb 1994 | British | 94 years |
| Stephen John Cowden | Director | 21 Jun 1996 | 29 Sept 1997 | British | 73 years |
| Trusec Limited | Corporate Nominee Secretary | 19 Nov 1993 | 21 Feb 1994 | United Kingdom | - |
