| Alan George Burns | Director | 3 Dec 2012 | 3 Apr 2019 | British | 50 years |
| Albert Joseph White | Director | 31 Jul 1990 | 16 Jun 1993 | Us Citizen | 92 years |
| Alison Marie Dillon | Director | 16 Jun 1993 | 4 Sept 1998 | British | 64 years |
| Alison Marie Horler | Secretary | 1 Apr 1993 | 16 Jun 1993 | British | - |
| Ashley Alexander Grist | Director | 9 Sept 2009 | 20 Oct 2010 | British | 60 years |
| Caroline Daphne Coomber | Secretary | 18 May 1998 | 21 Dec 1999 | British | - |
| Charalampos Panagiotidis | Director | 15 Feb 2019 | 2 Mar 2020 | Greek | 48 years |
| Ciara Martha Lynch | Director | 2 Mar 2020 | 11 Jan 2022 | Irish | 57 years |
| Clare Alexandra Mcclintock | Director | 10 Mar 1995 | 26 Aug 1997 | British | 62 years |
| Clare Alexandra Mcclintock | Secretary | 16 Jun 1993 | 10 Mar 1995 | British | - |
| David John Stevens | Director | 16 Jun 1993 | 10 Mar 1995 | British | 75 years |
| Deborah Anne Adams | Secretary | 10 Mar 1995 | 17 Jan 1996 | British | - |
| Derek Davies | Director | 16 Aug 2010 | 14 Dec 2012 | British | 62 years |
| Donald Frederick Parman | Director | 22 Oct 1991 | 19 Oct 1993 | Us Citizen | 75 years |
| Donald Frederick Parman | Secretary | 22 Oct 1991 | 16 Jun 1993 | Us Citizen | - |
| James Borger | Director | 25 Feb 2019 | 2 Mar 2020 | American | 62 years |
| Karina Jane Bryant | Secretary | 21 Dec 1999 | 18 Jan 2002 | British | - |
| Mark Alexander Rowland Venables | Director | 26 Aug 1997 | 21 Dec 1999 | British | 71 years |
| Oleg Dubianskij | Director | 31 Jan 2017 | 13 Feb 2019 | Lithuanian | 53 years |
| Rodney Martin Whittaker | Director | 1 Apr 1993 | 21 Dec 1999 | British | 77 years |
| Rupert Bondy | Director | 1 Jan 2000 | 2 Mar 2001 | British | 64 years |
| Simon Nicholas Wilbraham | Director | 18 May 1998 | 22 Feb 2001 | British | 56 years |
| Valerie Banks | Secretary | 17 Jan 1996 | 18 May 1998 | British | - |
