| FLETCHER, Vincent ACTIVE | Secretary | 24 Dec 1998 | | | | 25 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| BURLETON, Margot Mary ACTIVE | Director | 24 Feb 2026 | | United Kingdom | October 1966 | 15, Prebend Mansions, London, W4 2LU, United Kingdom |
| FLETCHER, Vincent ACTIVE | Director | 07 Mar 1997 | | | January 1955 | 25 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| HAIGH, Jonathan Paul Richard ACTIVE | Director | 14 Jan 2025 | | United Kingdom | September 1982 | 18, Prebend Mansions, London, W4 2LU, United Kingdom |
| HARTL, Wilhelm ACTIVE | Director | 06 Sep 2004 | | England | July 1956 | 40 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| SHENSTONE, Alistair James ACTIVE | Director | 25 Sep 2019 | | England | July 1969 | 7, Prebend Mansions, Chiswick High Road, London, W4 2LU, United Kingdom |
| ASHTON, Michael Nicholas RESIGNED | Secretary | | 28 Jul 1993 | | | 15 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| DODD, Peter Ernest Mark RESIGNED | Secretary | 28 Jul 1993 | 11 Jul 1994 | | | 20 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| GOODING, Jonathan Michael RESIGNED | Secretary | 11 Jul 1994 | 09 Sep 1994 | | | 146/8 Cromwell Road, London, SW7 4EF |
| LILLEY, Graham RESIGNED | Secretary | 18 Apr 1998 | 24 Dec 1998 | | | 23 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| JSSP LIMITED RESIGNED | Secretary | 09 Sep 1994 | 18 Apr 1998 | | | 35 Battersea Square, London, SW11 3RA |
| ARENGO JONES, Josephine RESIGNED | Director | 20 Feb 2003 | 11 Jan 2016 | | March 1948 | 3 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| BAKER, Roland George Chignell RESIGNED | Director | 25 Sep 2019 | 15 Mar 2021 | United Kingdom | October 1924 | 18, Prebend Mansions, London, W4 2LU, United Kingdom |
| BAKER, Roland George Chignell RESIGNED | Director | | 16 Sep 1997 | United Kingdom | October 1924 | 18 Prebend Mansions, London, W4 2LU |
| BARLOW, Mary Brigid Gardner RESIGNED | Director | 23 Sep 1994 | 15 Jul 1999 | | January 1931 | 34 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| BROOKE, Simon RESIGNED | Director | 01 Jun 1999 | 17 Jan 2011 | United Kingdom | August 1963 | 20 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| CARUSO CORSI, Laura, Doctor RESIGNED | Director | 13 Mar 1997 | 15 Apr 1998 | | June 1950 | 13 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| CORSI, Laura Maria RESIGNED | Director | | 04 Feb 1993 | | June 1956 | 12 Prebend Mansions, London, W4 2LU |
| DODD, Peter Ernest Mark RESIGNED | Director | 28 Jul 1993 | 11 Jul 1994 | | July 1944 | 20 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| FLYNN, Clare Mary RESIGNED | Director | 20 Feb 2003 | 26 Nov 2007 | | November 1954 | 5 Prebend Mansions, London, W4 2LU |
| GORDON, William Irvine, Dr RESIGNED | Director | | 15 Dec 1994 | | September 1944 | 6 Prebend Mansions, London, W4 2LU |
| HUTSON, Julian RESIGNED | Director | 22 Sep 1994 | 07 Mar 1997 | | December 1944 | 17 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| LILLEY, Graham RESIGNED | Director | 03 Jun 1997 | 24 Dec 1998 | | June 1965 | 23 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| LONDEI, Marco, Doctor RESIGNED | Director | 12 Mar 1997 | 17 Mar 2002 | | March 1950 | 3 Prebend Mansions, London, W4 2LH |
| MILLER, Jack Michael RESIGNED | Director | 26 Nov 2007 | 15 Mar 2021 | England | January 1946 | 12 Prebend Mansions, London, W4 2LU |
| RENNIE, David Richard RESIGNED | Director | | 23 Jan 1997 | | August 1956 | 39 Prebend Mansions, London, W4 2LU |
| RICKMAN, Neil RESIGNED | Director | 15 Jul 1999 | 06 Sep 2004 | | June 1967 | 37 Prebend Mansions, Chiswick High Road, London, W4 2LU |
| STEINHAUSEN, Ashley RESIGNED | Director | | 09 Mar 1994 | | December 1956 | 17 Prebend Mansions, London, W4 2LU |
| WEST, Gerald RESIGNED | Director | 15 Apr 1998 | 17 May 2017 | | March 1947 | 10 Prebend Mansions, Chiswick High Road, London, W4 2LU |