| HOWELLS, Ian ACTIVE | Secretary | 17 Apr 2009 | | | | Cain Road, Bracknell, Berkshire, RG12 1HL, England |
| DE JAEGER, Hans Richard Ivonne ACTIVE | Director | 01 Apr 2023 | | Belgium | October 1965 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| EROSKAY, Can Refik ACTIVE | Director | 01 Apr 2025 | | England | April 1970 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| HOWELLS, Ian ACTIVE | Director | 01 Apr 2013 | | England | January 1962 | Cain Road, Bracknell, Berkshire, RG12 1HL, England |
| STRENG, Jean-Marc ACTIVE | Director | 01 Apr 2024 | | England | November 1967 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| KING, William David Graeme RESIGNED | Secretary | | 17 Apr 2009 | | | 16 Jessica Road, London, SW18 2QN |
| GARDNER, Thomas RESIGNED | Director | 01 Apr 2018 | 01 Apr 2024 | United Kingdom | December 1964 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| HACHIGO, Takahiro RESIGNED | Director | 01 Apr 2012 | 01 Apr 2013 | United Kingdom | May 1959 | 470 London Road, Slough, Berkshire, SL3 8QY |
| HARADA, Minoru RESIGNED | Director | 01 Jun 1998 | 01 Apr 2004 | | January 1947 | 15 Cedar Heights, Petersham, Richmond, Surrey, TW10 7AE |
| IGUCHI, Kogen RESIGNED | Director | 01 Apr 2015 | 01 Apr 2021 | United Kingdom | February 1968 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| IIYAMA, Kazuto RESIGNED | Director | 01 Apr 2004 | 01 Apr 2005 | | October 1951 | Northfields Shire Barn, Longworth Road, Kingstone Bagpulze, Oxfordshire, OX13 5H2 |
| INOUE, Katsushi RESIGNED | Director | 01 Apr 2016 | 01 May 2020 | Japan | October 1963 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| ITO, Hiroyuki RESIGNED | Director | 02 Apr 2001 | 01 Apr 2003 | | March 1944 | 30 Chiswick Green Studios, 1 Evershed Walk Chiswick, London, W4 5BW |
| ITO, Kazue RESIGNED | Director | | 01 Jun 1998 | | March 1939 | Hogarth House, Bray Road, Bray, Berkshire, SL6 1UQ |
| KANAZAWA, Suguru RESIGNED | Director | 01 Apr 2007 | 01 Apr 2011 | United Kingdom | April 1952 | 470 London Road, Slough, Berkshire, SL3 8QY |
| KATO, Kentaro RESIGNED | Director | 24 Jul 1996 | 01 Jun 1998 | | June 1948 | The Grey House New Road, Shiplake, Henley On Thames, Oxfordshire, RG9 3LH |
| KATO, Masaaki RESIGNED | Director | 01 Apr 2005 | 01 Apr 2007 | | September 1949 | Willow Court, 95 Abingdon Road, Standlake, Oxon, OX29 7QN |
| KEIR, Kenneth William RESIGNED | Director | 08 Apr 2003 | 01 Apr 2013 | England | July 1950 | 470 London Road, Slough, Berkshire, SL3 8QY |
| KOBAYASHI, Hiroshi RESIGNED | Director | 01 Apr 2003 | 01 Apr 2004 | | November 1954 | Laurelwood, Cavendish Road St Georges, Weybridge, Surrey, KT13 0JY |
| MAEKAWA, Yasuhisa RESIGNED | Director | 01 Apr 2003 | 01 Apr 2007 | | December 1951 | 470 London Road, Slough, Berkshire, SL3 8YW |
| MIKOSHIBA, Toshiaki RESIGNED | Director | 01 Apr 2014 | 01 Apr 2016 | Great Britain | November 1957 | Cain Road, Bracknell, Berkshire, RG12 1HL, England |
| MIKOSHIBA, Toshiaki RESIGNED | Director | 01 Apr 2008 | 01 Apr 2010 | Russia | November 1951 | 470 London Road, Slough, Berkshire, SL3 8QY |
| MIYAKE, Shojiro RESIGNED | Director | 18 Jan 1992 | 29 Jun 1994 | | September 1941 | 4 Orchard Chase, Hurst, Berkshire, RG10 0SW |
| MIYAKE, Shojiro RESIGNED | Director | | 02 Oct 1993 | | September 1941 | Hill End Farm, Sherborne St John, Basingstoke, Hampshire, RG26 5HB |
| MIYOSHI, Takeomi RESIGNED | Director | | 24 Jul 1996 | | August 1942 | Library Farm Barn, Garsington, Oxfordshire, OX44 9PA |
| NISHIMAE, Manabu RESIGNED | Director | 01 Mar 2011 | 01 Apr 2014 | United Kingdom | August 1954 | 470 London Road, Slough, Berkshire, SL3 8QY |
| NISHIMOTO, Jun RESIGNED | Director | 01 Apr 2018 | 01 Oct 2021 | England | February 1962 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| NOGUCHI, Makito RESIGNED | Director | 01 Apr 2007 | 01 Apr 2009 | | October 1951 | Flat 3, Dene House, Frances Road, Windsor, Berkshire, SL3 8FE, Great Britain |
| OKUDA, Katsuhisa RESIGNED | Director | 01 May 2020 | 01 Apr 2026 | Japan | October 1964 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| ROSS, William Philip RESIGNED | Director | 01 Feb 2014 | 01 Apr 2018 | England | February 1956 | Cain Road, Bracknell, Berkshire, RG12 1HL, England |
| SAITO, Toshio RESIGNED | Director | 02 Apr 2001 | 01 Apr 2003 | | November 1947 | 12 Bevan Court, 31 Clevedon Road, Twickenham, Middlesex, TW1 2TS |
| SHIMADA, Hisahiro RESIGNED | Director | 01 Apr 2024 | 01 Apr 2025 | England | September 1968 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| SHINKAI, Michiaki RESIGNED | Director | 13 Nov 1997 | 25 Sep 2000 | | September 1940 | 27 Old Palace Lane, Richmond, Surrey, TW9 1PQ |
| SUZUKI, Hisao RESIGNED | Director | 24 Jul 1996 | 22 Dec 2000 | | April 1943 | 4 Coombe Hill Court, St Leonards Hill, Windsor, Berkshire, SL4 4UL |
| TAKAGI, Shigeru RESIGNED | Director | 01 Apr 2004 | 01 Mar 2011 | United Kingdom | February 1952 | 470 London Road, Slough, Berkshire, SL3 8QY |
| TAKANO, Akira RESIGNED | Director | 01 Jun 1998 | 01 Apr 2004 | | August 1949 | Sudbury Barn Sudbury Lane, Longworth, Oxfordshire, OX13 5EL |
| TAKIZAWA, Soichiro RESIGNED | Director | 01 Apr 2011 | 01 Apr 2016 | United Kingdom | April 1958 | Cain Road, Bracknell, Berkshire, RG12 1HL, England |
| TSUKAMOTO, Ryuichi RESIGNED | Director | 29 Jun 1994 | 24 Jul 1996 | | May 1940 | Wild Edge The Ridges, Finchampstead, Berkshire, RG11 3SS |
| UENO, Mitsuhiro RESIGNED | Director | 01 Apr 2009 | 01 Apr 2013 | United Kingdom | August 1956 | 470 London Road, Slough, Berkshire, SL3 8QY |
| YAMAMOTO, Soichi RESIGNED | Director | 01 Apr 2016 | 01 Apr 2018 | United Kingdom | August 1963 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| YAMATO, Takayuki RESIGNED | Director | 01 Apr 2021 | 01 Apr 2023 | United Kingdom | January 1970 | Cain Road, Bracknell, Berkshire, RG12 1HL |
| ZAIMA, Hiroshi RESIGNED | Director | 01 Mar 2000 | 02 Apr 2001 | | December 1946 | 42 Chaucer Close, Windsor, Berkshire, SL4 3ER |