| FUNNELL, Samantha Jane ACTIVE | Secretary | 06 Dec 2017 | | | | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| BROWN, John David, Mr. ACTIVE | Director | 06 Nov 2002 | | United Kingdom | October 1942 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| CLARK, Charles Robert ACTIVE | Director | 10 Dec 2020 | | England | October 1970 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| DAVIES, Lee Mark ACTIVE | Director | 23 Jul 2012 | | England | December 1966 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| DEAN, John Paul ACTIVE | Director | 10 Dec 2020 | | England | December 1963 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| EYLES, Christopher Thomas ACTIVE | Director | 02 May 2007 | | England | February 1939 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| FUNNELL, Samantha Jane ACTIVE | Director | 04 Oct 2017 | | England | February 1967 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| KENT, Venetia Katherine ACTIVE | Director | 11 Dec 2025 | | England | October 1967 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| MOHUN, Stephen John ACTIVE | Director | 15 Jan 1999 | | United Kingdom | March 1967 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| OLIVER, Suzanne Marie ACTIVE | Director | 07 Jul 2022 | | England | December 1973 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| CHANDLER, Derek Richard RESIGNED | Secretary | 26 Nov 2001 | 22 Nov 2017 | | | 2nd Floor, Halton House, 20-23 Holborn, London, EC1N 2JD, England |
| HALLYBONE, Huw George RESIGNED | Secretary | | 26 Nov 2001 | | | Clifton, 24 Nightingale Road, Godalming, Surrey, GU7 3AG |
| ALEXANDER, Thomas Bruce RESIGNED | Director | 18 Jan 2005 | 09 Oct 2006 | United Kingdom | December 1951 | Suffolk House, Lidgate, Newmarket, Suffolk, CB8 9PW |
| ALLARD, Susan Joyce RESIGNED | Director | 05 Jun 1996 | 18 Jan 1999 | | April 1944 | 49 Northchurch Road, London, N1 4EE |
| ALLARD, Susan Joyce RESIGNED | Director | | 14 Jun 1995 | | April 1944 | 49 Northchurch Road, London, N1 4EE |
| ARNOLD, Carol Alice RESIGNED | Director | 02 May 2018 | 11 Dec 2025 | England | March 1956 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| BECKHAM, Robert William RESIGNED | Director | 28 May 1997 | 06 Apr 2005 | British | March 1946 | Gatehouse, Lake Road, Portishead, Bristol, BS20 7JA |
| BRADLEY, David William RESIGNED | Director | 14 Nov 2008 | 30 Jul 2009 | Uk | March 1950 | 65, Beachampstead Road, Great Staughton, PE19 5DX, United Kingdom |
| BREWSTER, Andrea Ruth RESIGNED | Director | 14 Dec 2016 | 05 Feb 2019 | England | October 1966 | 2nd Floor, Halton House, 20-23 Holborn, London, EC1N 2JD, England |
| BURT, Roger James, Dr RESIGNED | Director | 26 Feb 2014 | 20 Mar 2015 | United Kingdom | October 1950 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| CARTER, Caroline Ann RESIGNED | Director | | 04 Feb 1999 | | September 1943 | 119 Woodmansterne Road, Carshalton, Surrey, SM5 4EG |
| CHANDLER, Derek Richard RESIGNED | Director | 26 Nov 2001 | 24 Jan 2018 | England | December 1938 | 2nd Floor, Halton House, 20-23 Holborn, London, EC1N 2JD, England |
| CLINE, Roger Ledlie RESIGNED | Director | 31 Dec 1997 | 02 May 2007 | England | May 1938 | Flat 13 13 Tavistock Place, London, WC1H 9SH |
| DAVIES, Jonathan Mark, Dr RESIGNED | Director | 24 May 1995 | 03 Jun 1998 | | April 1956 | 15 West Way, Harpenden, Hertfordshire, AL5 4RD |
| DYKE, Marion Elizabeth Grant RESIGNED | Director | | 02 Apr 1992 | United Kingdom | September 1945 | 40 Compton Road, Winchmore Hill, London, N21 3NX |
| EKE, Philippa Dianne RESIGNED | Director | 27 May 1999 | 16 Dec 2021 | England | February 1969 | 2nd Floor, Halton House, 20-23 Holborn, London, EC1N 2JD, England |
| FARWELL, William Robert RESIGNED | Director | | 30 Oct 2003 | | November 1938 | Black Lake House Wardley, Milland, Liphook, Hampshire, GU30 7LU |
| FAWCETT, Richard Fennelly RESIGNED | Director | 06 Oct 1993 | 06 Apr 2005 | United Kingdom | November 1936 | 8 Lennox House, Clevedon Road, Twickenham, TW1 2TA |
| GOLD, Tibor Zoltan RESIGNED | Director | 15 Jan 1999 | 09 Jun 1999 | England | January 1942 | 2 Fawley Road, London, NW6 1SH |
| HALLYBONE, Huw George RESIGNED | Director | | 01 Jul 2015 | United Kingdom | August 1957 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| JONES, Helen Marjorie Meredith RESIGNED | Director | 15 Jan 1999 | 20 Oct 2016 | England | August 1961 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| LEES, Clifford RESIGNED | Director | | 11 Feb 2002 | | March 1929 | 6 Broomfield, Elland, West Yorkshire, HX5 0QX |
| LYND, Michael Arthur RESIGNED | Director | 06 Oct 1993 | 10 Jan 2026 | United Kingdom | March 1947 | 2nd Floor, Viaro House, 20-23 Holborn, C/O Cipa, London, EC1N 2JD, England |
| LYNDON-STANFORD, Edward RESIGNED | Director | 24 May 2000 | 26 Nov 2001 | | January 1936 | 2 Tanza Road, London, NW3 2UB |
| MCCALL, John Douglas RESIGNED | Director | 25 May 1994 | 24 May 1995 | | July 1940 | 25 Haddon Drive, Pensby, Wirral, Merseyside, CH61 8TF |
| MERCER, Christopher Paul RESIGNED | Director | 23 Jul 2012 | 20 Feb 2014 | United Kingdom | January 1951 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| MOLE, Peter Geoffrey RESIGNED | Director | 09 Aug 1999 | 24 May 2000 | | July 1944 | Marcher House, Lyneal, Ellesmere, Shropshire, SY12 0QG |
| MUIR, Justine Claire RESIGNED | Director | 02 May 2018 | 06 Dec 2019 | England | July 1966 | 2nd Floor, Halton House, 20-23 Holborn, London, EC1N 2JD, England |
| RALPH, Michael Christopher, Mr. RESIGNED | Director | 02 Jun 1993 | 04 Jul 2012 | Uk | February 1947 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| REID, John Mackay, Dr RESIGNED | Director | 26 May 1993 | 25 May 1994 | | June 1937 | 37 Bathwick Hill, Bath, Avon, BA2 6LD |
| ROBERTS, Timothy Wace RESIGNED | Director | 02 Sep 2011 | 20 Jul 2012 | England | July 1937 | 3rd Floor, 95 Chancery Lane, London, WC2A 1DT |
| ROBERTS, Timothy Wace RESIGNED | Director | 26 Nov 2001 | 06 Nov 2002 | England | July 1937 | 13 Spring Meadow, Bracknell, Berkshire, RG12 2JP |
| SERJEANT, Andrew Charles RESIGNED | Director | 22 May 1996 | 28 May 1997 | United Kingdom | July 1934 | Ashbrook 12 Southmeads Close, Oadby, Leicester, Leicestershire, LE2 2LT |
| SMITH, Gillian Ruth RESIGNED | Director | | 31 Dec 1997 | | November 1963 | 8 Brayton Gardens, Enfield, Middlesex, EN2 7LL |
| TREVES, Barry William RESIGNED | Director | 01 Nov 2006 | 02 May 2007 | | May 1938 | The Old Schoolhouse, Neen Savage, Kidderminster, Shropshire, DY14 8JU |
| WESTON, Robert Dale RESIGNED | Director | 02 May 2007 | 07 May 2008 | | March 1943 | 4 Northfield Avenue, Pinner, Middlesex, HA5 1AL |
| WHITE, Gerald William RESIGNED | Director | | 05 Jun 1996 | | February 1935 | 14 Devonshire Gardens, Chiswick, London, W4 3TN |