| DEMPSEY, Paul ACTIVE | Secretary | 04 Jul 2025 | | | | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| FERN, Andrew ACTIVE | Director | 01 Apr 2020 | | England | May 1977 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| FUKUDA, Takeshi ACTIVE | Director | 05 Aug 2025 | | England | October 1974 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| STRICKLAND, Campbell ACTIVE | Director | 01 Oct 2025 | | England | August 1975 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| WALSH, Daniel ACTIVE | Director | 01 Oct 2025 | | England | January 1991 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| COAD, Geoffrey RESIGNED | Secretary | | 17 Jul 1995 | | | 28 Hodwell, Ashwell, Baldock, Hertfordshire, SG7 5QQ |
| ELLABY, Hugh Jonathan RESIGNED | Secretary | 21 Aug 2000 | 31 Oct 2004 | | | 25 Primrose Close, Bishops Stortford, Hertfordshire, CM23 4QG |
| ELLIS, Ian Vincent RESIGNED | Secretary | 01 Nov 2004 | 01 Jan 2021 | | | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| PABANI, Nizar Bahadurali RESIGNED | Secretary | 01 Jan 2021 | 04 Jul 2025 | | | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| THOMAS, Peter Robert RESIGNED | Secretary | 01 Apr 1999 | 28 Apr 2000 | | | Cadwell House, West Littleton, Chippenham, Wiltshire, SN14 8JE |
| TOYAMA, Yuzo RESIGNED | Secretary | 17 Jul 1995 | 01 Apr 1999 | | | 48 Vineyard Hill Road, London, SW19 7JH |
| ALLEN, Peter John RESIGNED | Director | 03 Mar 1998 | 01 Apr 2013 | United Kingdom | July 1950 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| CROFT, Ashley Paul RESIGNED | Director | | 17 Jan 2003 | England | September 1953 | 25 Sollershott East, Letchworth, Hertfordshire, SG6 3JN |
| CROFT, Roy Frank RESIGNED | Director | | 01 Apr 1999 | | April 1929 | Two Leys, Norton Road, Letchworth, Herts, SG6 1AH |
| DENTON, Alan Trevor RESIGNED | Director | 01 Sep 2003 | 19 Aug 2005 | | October 1956 | 3 The Paddocks, Orlingbury, Northamptonshire, NN14 1JU |
| DOGGWILER, Antony John RESIGNED | Director | 01 Apr 1999 | 18 Dec 2003 | England | August 1963 | 75a Clockhouse Lane, Ashford, Middlesex, TW15 2HA |
| ELLABY, Hugh Jonathan RESIGNED | Director | 21 Aug 2000 | 31 Oct 2004 | | January 1966 | 25 Primrose Close, Bishops Stortford, Hertfordshire, CM23 4QG |
| ENGLAND, Michael Paul David RESIGNED | Director | 01 Mar 2002 | 09 Sep 2004 | | May 1951 | The Court House, Avenis Green France Lynch, Stroud, Gloucestershire, GL6 8LX |
| GOROKU, Wataru RESIGNED | Director | 02 Feb 2018 | 13 May 2022 | England | August 1974 | Fourth Avenue, Letchworth Garden City, Hertfordshire, SG6 2TT, United Kingdom |
| GOWLAND, Anthony Brian RESIGNED | Director | 03 Sep 2001 | 24 Jun 2003 | | October 1962 | Lingfield Marton Road, Birdingbury, Rugby, Warwickshire, CV23 8EH |
| GREEN, Richard Paul RESIGNED | Director | 01 Dec 1999 | 18 Dec 2003 | United Kingdom | April 1950 | Smithwood Farmhouse, Smithwood Common, Cranleigh, Surrey, GU6 8QY |
| GUYVER, Edward Francis RESIGNED | Director | 01 Apr 1999 | 01 Feb 2000 | England | February 1945 | 42 Waverley Lane, Farnham, Surrey, GU9 8BJ |
| HARADA, Yasuyuki RESIGNED | Director | 25 Apr 2007 | 28 May 2012 | Japan | January 1959 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| HARRIS, Jack Clifford RESIGNED | Director | | 15 Dec 1994 | | June 1928 | 58 Marine Parade, Brighton, East Sussex, BN2 1AB |
| HORI, Shuji RESIGNED | Director | 25 Apr 2007 | 28 May 2012 | Japan | May 1961 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| HORI, Shuji RESIGNED | Director | 25 Apr 2007 | 03 Jul 2008 | Japan | May 1961 | 2-1-75 Yato-Cho, Nishz Tokyo Shi, 188-0001 Tokyo, Japan |
| IKEBA, Taro RESIGNED | Director | 22 Jul 2005 | 31 Oct 2011 | England | November 1966 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| INABA, Hiroyuki RESIGNED | Director | 15 Dec 1994 | 16 Feb 1996 | | April 1947 | 4 Edgeworth Crescent, Hendon, London, NW4 4HG |
| ISHIDA, Mitsutaka RESIGNED | Director | 31 Aug 2004 | 30 Mar 2007 | | April 1968 | 134 Pampisford Road, Purley, Surrey, CR8 2NH |
| KIMBARA, Yutaka RESIGNED | Director | 26 Jul 2011 | 01 Feb 2018 | England | October 1970 | Fourth Avenue, Letchworth Garden City, Hertfordshire, SG6 2TT, England |
| KIMBARA, Yutaka RESIGNED | Director | 10 May 2006 | 15 Dec 2008 | | October 1970 | 24-8 Kanamecho 1 Chome, Toshima-Ku, Tokyo, 170-0043, FOREIGN, Japan |
| KITERA, Kuni RESIGNED | Director | 02 Jun 2009 | 28 May 2012 | Japan | January 1960 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| LYNOTT, Mark RESIGNED | Director | 01 Feb 2018 | 30 Jun 2025 | England | December 1975 | Etel House, Avenue One, Letchworth Garden City, SG6 2HU, England |
| MAKI, Akio RESIGNED | Director | 15 Dec 1994 | 01 May 1997 | | November 1945 | 10 Clos Des Mousserons, B-1050, Brussels, FOREIGN, Belgium |
| MANGOLA, Dennis RESIGNED | Director | 22 Jul 2005 | 10 May 2006 | | December 1948 | 51 Moreland Rd., Simi Valley, Ca. 93065, Usa |
| MASSON, Stuart William RESIGNED | Director | | 15 Dec 1994 | | November 1920 | 32 Wentworth Close, Watford, Hertfordshire, WD1 3LW |
| MITSUYASU, Akira RESIGNED | Director | 25 Apr 2007 | 01 May 2008 | | March 1949 | Flat 3 1 Alexandra Place, London, NW8 0DY |
| MURAI, Kenji RESIGNED | Director | 28 Jan 2004 | 26 Jul 2011 | England | September 1966 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| NAGASHIMA, Hideaki RESIGNED | Director | 23 Jul 2008 | 28 May 2012 | England | June 1964 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| NAKASHIMA, Shinji RESIGNED | Director | 31 Aug 2004 | 03 Jul 2008 | | November 1950 | Carlsplatz 22, Dusseldorf, 40213, FOREIGN, Germany |
| NICHOLSON, M Ichael Arthur George RESIGNED | Director | 01 Feb 2000 | 30 Sep 2003 | | November 1951 | Dell Cottage, Greywell Road, Up Nately, Hook, Hampshire, RG27 9PR |
| OBUCHI, Harutomo RESIGNED | Director | 15 Dec 1994 | 20 Mar 1996 | | December 1941 | 6-3-16 Jyomyoji, Kamakura City, Kanagawa-Ken, Japan |
| OGURA, Kazushi RESIGNED | Director | 01 Apr 2010 | 01 Mar 2014 | England | May 1973 | Fourth Avenue, Letchworth Garden City, Hertfordshire, SG6 2TT |
| ORCHARD, Julia Mary RESIGNED | Director | | 15 Dec 1994 | | May 1955 | 4 Wellington Place, Bassingbourn, Royston, Hertfordshire, SG8 5JQ |
| PAIN, Marion RESIGNED | Director | | 15 Dec 1994 | | September 1946 | 18 Cranborne Avenue, Hitchin, Hertfordshire, SG5 2BS |
| PARKER, Barbara Joan RESIGNED | Director | | 15 Dec 1994 | England | November 1943 | 5 Old Mill Close, Langford, Biggleswade, Bedfordshire, SG18 9QY |
| PARKER, Stephen Charles RESIGNED | Director | 06 Sep 2000 | 26 Jul 2011 | United Kingdom | May 1968 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| REGAN, Peter John RESIGNED | Director | 19 Apr 1996 | 03 Nov 1999 | | January 1937 | 11 Downside Road, Guildford, Surrey, GU4 8PH |
| SLADE, Mark Richard RESIGNED | Director | 01 Mar 2014 | 01 Feb 2018 | England | December 1975 | Fourth Avenue, Letchworth, Herts, SG6 2TT |
| TAKEUCHI, Hisakazu RESIGNED | Director | 31 Aug 2004 | 20 Feb 2006 | | October 1951 | 1-21-18 Kami-Shakujii, Nerima-Ku, Tokyo, FOREIGN, Japan |
| TANAKA, Shinjiro RESIGNED | Director | 10 May 2006 | 16 Apr 2007 | | March 1963 | 1-31 Mita 2 Chome Room 305, Minato-Ku, Tokyo, 108-0073, FOREIGN, Japan |
| THOMAS, Peter Robert RESIGNED | Director | 03 Mar 1998 | 28 Apr 2000 | | December 1940 | Cadwell House, West Littleton, Chippenham, Wiltshire, SN14 8JE |
| TOYAMA, Yuzo RESIGNED | Director | 20 Mar 1996 | 01 Apr 1999 | | August 1948 | 48 Vineyard Hill Road, London, SW19 7JH |
| TSUJIMOTO, Susumu RESIGNED | Director | 01 May 1997 | 25 Oct 2001 | | November 1948 | 205 Lyndhurst Court, 36-38 Finchley Road, London, NW8 6EU |
| UEKI, Shinji RESIGNED | Director | 20 Mar 1996 | 03 Jul 2008 | | December 1950 | 4 16 2, Chuuoo Honcho, Adachi Ku, Tokyo, Japan |
| WAKABAYASHI, Hiroshi RESIGNED | Director | 01 Aug 1997 | 01 Apr 1999 | | March 1942 | 107 Delamere Road, Ealing, London, W5 3JP |