| PRISM COSEC LIMITED ACTIVE | Secretary | 30 Aug 2017 | | | | Highdown House, Yeoman Way, Worthing, West Sussex, BN99 3HH, United Kingdom |
| CAPELLO, Marco ACTIVE | Director | 18 Jun 2010 | | Italy | August 1960 | 46a, Avenue John F Kennedy, Luxembourg, L-1855, Luxembourg |
| JAMIESON, Trevor ACTIVE | Director | 21 May 2024 | | England | March 1980 | 110, Bishopsgate, London, EC2N 4AY, United Kingdom |
| O'BRIEN, Neil Robert Jeffrey ACTIVE | Director | 03 Oct 2022 | | England | February 1976 | 110, Bishopsgate, London, EC2N 4AY, United Kingdom |
| PARTRIDGE, Charlotte Kate ACTIVE | Director | 23 Mar 2026 | | United Kingdom | September 1972 | 110, Bishopsgate, London, EC2N 4AY, United Kingdom |
| THOMAS, Graham Daniel Medley ACTIVE | Director | 21 May 2024 | | England | June 1967 | 110, Bishopsgate, London, EC2N 4AY, United Kingdom |
| ANSLEY, Charles William RESIGNED | Secretary | 27 Apr 2007 | 30 Aug 2017 | | | 7 Sinclair Gardens, London, W14 0AU |
| CARA, Robert Gerard RESIGNED | Secretary | 23 Sep 1996 | 01 Jul 1997 | | | Maplewood 57 Leigh Hill Road, Cobham, Surrey, KT11 2HY |
| CONNOLE, Michael Damien RESIGNED | Secretary | 18 Sep 1996 | 23 Sep 1996 | | | 117 Thornbury Road, Isleworth, Middlesex, TW7 4ND |
| DUMOND, Paul George RESIGNED | Secretary | 27 Oct 1992 | 06 Dec 1993 | | | 68 Philbeach Gardens, London, SW5 9EE |
| HITCHCOCK, Frederick Steven RESIGNED | Secretary | 01 Jul 1997 | 27 Apr 2007 | | | 123 Winter Club Court, Palm Beach Gardens, Florida 33410, Usa |
| LASHER, Cathy RESIGNED | Secretary | | 27 Oct 1992 | | | 21 Longfield Avenue, London, NW7 2EH |
| SWITALSKI, Gillian Eileen RESIGNED | Secretary | 06 Dec 1993 | 18 Sep 1996 | | | Kings Copse, Waverley Drive, Virginia Water, Surrey, GU25 4PZ |
| BARBER, Alan John RESIGNED | Director | 26 Apr 2005 | 31 Dec 2016 | United Kingdom | November 1947 | 8, Salisbury Square, London, EC4Y 8BB |
| BOLDUC, Jean Paul RESIGNED | Director | 20 Sep 1996 | 21 Oct 2009 | Usa | July 1939 | 13237 Westmeath Lane Clarksville, Howard County, Maryland, Usa |
| BOURDEAU DE FONTENAY, Miguel RESIGNED | Director | 19 Mar 2008 | 10 Nov 2009 | | November 1957 | 5 Rue De Luynes, Ile De France, Paris, 75007, France |
| BUJOLD, Joseph Marc RESIGNED | Director | | 04 Jun 1993 | | October 1937 | North Circle 12188, North Palm Beach Florida 33408, FOREIGN, Usa |
| CARA, Robert Gerard RESIGNED | Director | 08 Dec 1995 | 15 Apr 2003 | | May 1952 | 14 Glencairn Road, Palm Beach Gardens, Florida, 33418, Usa |
| CARVALHO, Luiz RESIGNED | Director | 19 Mar 2008 | 05 Mar 2014 | | January 1958 | 4804, Rivercliff Drive, Se, Marietta, Georgia 30067, United States |
| COHEN, Janet, Baroness RESIGNED | Director | 11 Aug 2003 | 19 Apr 2011 | United Kingdom | July 1940 | 20 Morpeth Mansions, Morpeth Terrace, London, SW1P 1ER |
| COLLIS, Denise Rosemary RESIGNED | Director | 08 Feb 1996 | 31 Aug 1996 | | September 1957 | 2 Gowan Avenue, London, SW6 6RF |
| COMRAS, Michael David RESIGNED | Director | 30 May 2017 | 09 May 2018 | England | September 1955 | St Paul's House 4th Floor 10, Warwick Lane, London, EC4M 7BP |
| CURRIE, Mark Andrew RESIGNED | Director | 01 Mar 2005 | 13 Oct 2006 | England | January 1963 | Heathcote, Fairoak Lane, Oxshott, Surrey, KT22 0TP |
| CZERNIAWSKA, Fiona Margaret Swift RESIGNED | Director | 10 Mar 2017 | 06 May 2024 | United Kingdom | September 1961 | 26, Aldebert Terrace, London, SW8 1BJ, United Kingdom |
| DANIELS, Karl RESIGNED | Director | 18 Jul 1994 | 28 May 1996 | England | December 1935 | The Manor House, 27 Cumberland House, Woodbridge, Suffolk, IP12 4AH |
| DI SPIEZIO SARDO, Emilio RESIGNED | Director | 18 Jun 2010 | 06 May 2024 | United Kingdom | March 1977 | 5th Floor, Eagle House, 108 - 110 Jermyn Street, London, SW1Y 6EE, United Kingdom |
| EBERLE, William Denman RESIGNED | Director | | 23 May 1994 | | May 1923 | 36 Mascanomo, Manchester By The Sea Mass 01944, FOREIGN, Usa |
| FERRISS, Stephen Alan RESIGNED | Director | 03 Mar 2006 | 20 Jun 2016 | | September 1945 | 33 Wynnstay Gardens, London, W8 6UT |
| FOURNIER, Bernard Dominique RESIGNED | Director | 10 Dec 1998 | 18 Apr 2000 | | December 1938 | 16 Clareville Grove, London, SW7 5AS |
| FRASER, Campbell, Sir RESIGNED | Director | | 23 May 1995 | | May 1923 | Silver Birches 4 Silver Lane, Purley, Surrey, CR8 3HG |
| GEORGE, Paul RESIGNED | Director | 01 Jan 2000 | 15 Apr 2003 | England | December 1960 | 26 Stradella Road, London, SE24 9HA |
| GILL, David Alan RESIGNED | Director | 04 Jun 1993 | 08 Dec 1995 | England | August 1957 | 5 Chanctonbury Drive, Sunningdale, Berkshire, SL5 9PT |
| HACKETT, Pamela Ursula RESIGNED | Director | 18 Jul 2018 | 08 Jun 2022 | Canada | December 1963 | St Paul's House 4th Floor 10, Warwick Lane, London, EC4M 7BP |
| HALKES, Nigel Leslie RESIGNED | Director | 18 Dec 2015 | 31 Dec 2016 | United Kingdom | September 1955 | 10 Fleet Place, London, EC4M 7RB |
| HAMILTON, Neil RESIGNED | Director | | 04 Jun 1993 | | April 1932 | One Inlet Cay Drive, Ocean Ridge, Florida 33435, FOREIGN, Usa |
| HOHN, Thomas Joseph RESIGNED | Director | | 10 Jul 1992 | | February 1936 | 1 Surrey Road, Palm Beach Gardens Florida 33418, FOREIGN, Usa |
| HUGHES, Malcolm Keith RESIGNED | Director | 17 Oct 1994 | 02 Aug 1999 | | July 1954 | Old Orchard, 6 Burstead Close, Cobham, Surrey, KT11 2NL |
| JONES, David Gareth RESIGNED | Director | 09 Aug 2002 | 26 Apr 2005 | United Kingdom | November 1948 | Hillhouse Farm, Misbrooks Green Road Beare Green, Dorking, Surrey, RH5 4QQ |
| LOPINTO, Marco Enrico RESIGNED | Director | 15 Dec 2009 | 19 Apr 2011 | France | November 1962 | 2, Rue Du Marechal Gallieni, St Germain En Laye, 78100, FOREIGN, France |
| MACKENZIE, Graham Roche RESIGNED | Director | 23 May 1994 | 15 Apr 2003 | United Kingdom | April 1944 | Hollow Tree House Hollow Tree Lane, Tardebigge, Bromsgrove, Worcestershire, B60 1PR |
| MAHJOUB, Chiheb RESIGNED | Director | 10 Nov 2009 | 18 Dec 2015 | French Tunisian | January 1964 | 14 Quai Leon Chausson, Juziers, 78820, France |
| MANARDO, Jacques Antoine RESIGNED | Director | 01 Sep 2006 | 29 May 2007 | | June 1946 | 5 Rue De L'Alboni, Paris, 75016, FOREIGN, France |
| MANGES, James Horis RESIGNED | Director | 28 Mar 1996 | 18 Jun 1998 | | October 1927 | 875 Park Avenue, New York, NY10021, Usa |
| MC FADIN, Larry RESIGNED | Director | | 23 May 1994 | | March 1939 | 718 Bear Creek Circle, Winter Springs Florida 32708, FOREIGN, Usa |
| MILLS, Christopher Harwood Bernard RESIGNED | Director | | 28 May 1996 | United Kingdom | November 1952 | 10, Cliveden Place, London, SW1W 8LA |
| PARRY, Kevin Allen Huw RESIGNED | Director | 01 Jan 2000 | 19 Feb 2008 | United Kingdom | January 1962 | 85 Cambridge Street, London, SW1V 4PY |
| POVEY, Christopher John RESIGNED | Director | 31 Oct 2010 | 17 Nov 2016 | England | February 1961 | 145, Shooters Hill Road, Blackheath, London, SE3 8UQ, United Kingdom |
| PROSSER, John William RESIGNED | Director | 02 Nov 1992 | 30 Mar 1995 | | August 1936 | Berolena, Coronation Road, Ascot, Berkshire, SL5 9LQ |
| PURSE, Stephen John RESIGNED | Director | 15 Nov 2001 | 07 Mar 2005 | England | April 1953 | 36 Newry Road, Twickenham, London, TW1 1PL |
| REINIGHAUS, Ronald RESIGNED | Director | 21 May 2024 | 06 Jul 2026 | United States | August 1971 | 110, Bishopsgate, London, EC2N 4AY, United Kingdom |
| SCHEIDER, Wilhelm Herbert Gunther RESIGNED | Director | 23 May 1994 | 18 Jun 1998 | | March 1928 | Lilienthalallee 12, D-60487 Frankfurt Am Main, Germany, FOREIGN |
| SHIINA, Takeo RESIGNED | Director | 28 Mar 1996 | 14 Aug 2000 | | May 1929 | 2-8-17-301 Mita, Minato-Ku, Tokyo 108-0073, FOREIGN, Japan |
| SIMON, Andrew Henry RESIGNED | Director | 03 Mar 2006 | 18 Dec 2015 | | April 1945 | 10 Fleet Place, London, EC4M 7RB |
| SLEE, William Robert RESIGNED | Director | 08 Feb 1996 | 18 Jun 1998 | | January 1941 | 52 South Eaton Place, London, SW1W 9JJ |
| SMITH, Craig Harold RESIGNED | Director | 26 Apr 2007 | 31 Oct 2010 | England | May 1963 | Orchard View, Shenley Hill, Radlett, Hertfordshire, WD7 7AT |
| STAGG, Nicholas Simon RESIGNED | Director | 21 Oct 2009 | 05 Mar 2024 | United Kingdom | November 1959 | St Paul's House 4th Floor 10, Warwick Lane, London, EC4M 7BP |
| STEVENS, David Robert, Lord Stevens Of Ludgate RESIGNED | Director | | 23 May 1995 | | May 1936 | Ludgate House, 245 Blackfriars Road, London, SE1 9UY |
| STOMBERG, Rolf Wilhelm Heinrich, Dr RESIGNED | Director | 25 Sep 1998 | 19 Feb 2008 | | April 1940 | Falkenstein 9, 22587 Hamburg, Germany |
| TURNER JR, William Ian Mackenzie RESIGNED | Director | 23 May 1994 | 16 Apr 2002 | | January 1929 | 4294 Montrose Avenue, Westmount, Quebec, Canada |
| VAUGHAN-LEE, Mark Andrew RESIGNED | Director | | 04 Jun 1993 | | November 1945 | Ashcombe Farm Cottage, Tollard Royal, Salisbury, Wiltshire, SP5 5QG |
| WALDRON, Julian David RESIGNED | Director | 08 Oct 2008 | 31 Dec 2019 | France | June 1964 | 15, Avenue Des Courlis, Le Vesinet, 78110, France |
| WIETECHA, Mark RESIGNED | Director | 19 Mar 2008 | 30 Sep 2011 | | May 1957 | 110 Gentry Gate, Alpharetta, Georgia 30022, FOREIGN, Usa |