| Anthony John Mehew | Director | 9 Aug 2001 | 31 Jul 2017 | British | 81 years |
| Christopher John Roland Bedford | Secretary | 15 Nov 1994 | 6 Sept 1996 | British | - |
| Colin Ross Corness | Director | 24 Apr 1995 | 25 Jan 2001 | British | 94 years |
| David Atkinson | Director | 1 Jan 1996 | 4 Sept 2001 | British | 62 years |
| Dinah Kathleen Lloyd | Director | 25 Jan 2001 | 9 Aug 2001 | British | 77 years |
| Donald John Derx | Director | 1 Sept 1992 | 31 Dec 1995 | British | 97 years |
| Edinburgh Pharmaceutical Industries Limited | Corporate Director | 16 Aug 2006 | 27 Oct 2020 | United Kingdom | - |
| Edward Geoffrey Levy | Director | 1 Sept 1992 | 4 Oct 1995 | British | 88 years |
| Edward Geoffrey Levy | Secretary | 7 Sept 1996 | 22 May 1997 | British | - |
| Ernest Mario | Director | 1 Sept 1992 | 12 May 1993 | American | 87 years |
| Glaxo Group Limited | Corporate Director | 16 Aug 2006 | 27 Oct 2020 | United Kingdom | - |
| Howe Of Aberavon | Director | 4 Nov 1992 | 31 Dec 1995 | British | 99 years |
| James Robert Anthony Ford | Director | 19 May 2005 | 28 Jul 2006 | British | 59 years |
| John Anthony Rowson | Director | 4 Nov 1992 | 19 Apr 1996 | British | 95 years |
| John David Coombe | Director | 13 Nov 1995 | 31 Mar 2005 | British | 80 years |
| John Graham Cuckney | Director | 1 Sept 1992 | 15 Nov 1994 | British | 100 years |
| John Michael Raisman | Director | 1 Sept 1992 | 11 Nov 1993 | British | 96 years |
| John Michael Sadler | Director | 26 Oct 2020 | 29 Jul 2022 | British | 69 years |
| John Mulock Hignett | Director | 1 Sept 1992 | 13 Nov 1995 | British | 91 years |
| Kenneth Mackenzie Neil Fergusson | Director | 1 Sept 1992 | 8 Feb 1994 | British | 95 years |
| Moira Aileen Beckwith | Secretary | 9 Aug 2001 | 31 Jul 2017 | British | - |
| Neil Lister | Secretary | 22 May 1997 | 9 Aug 2001 | British | - |
| Nicole Mullock | Director | 15 Sept 2017 | 23 Oct 2020 | British | 45 years |
| Paul Girolami | Director | 1 Sept 1992 | 17 Oct 1994 | British | 99 years |
| Priscilla Jane Newell | Director | 20 Jun 1994 | 20 May 2004 | British & New Zealad | 81 years |
| Ralf Dahrendorf | Director | 4 Nov 1992 | 13 Feb 1997 | British | 96 years |
| Raymond Bluett | Director | 1 Jan 1996 | 15 Aug 2003 | British | 66 years |
| Richard Brook Sykes | Director | 22 Jun 1993 | 4 May 1995 | British | 83 years |
| Richard Forbes Thomas | Director | 3 Apr 1996 | 1 May 2004 | British | 81 years |
| Robert Collinge | Director | 5 Apr 2004 | 7 Feb 2006 | British | 78 years |
| Ronald Arculus | Director | 1 Sept 1992 | 11 Nov 1993 | British | 102 years |
| Simon Michael Bicknell | Secretary | 1 Sept 1992 | 15 Nov 1994 | British | - |