| EVERSON, Susan Lilian ACTIVE | Secretary | 01 Jun 2007 | | | | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| GEORGESCU, Serban, Dr ACTIVE | Director | 01 Apr 2024 | | England | June 1980 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| JUNGO, Okai, Dr ACTIVE | Director | 01 Apr 2025 | | Japan | July 1977 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| OKAMOTO, Seishi, Dr ACTIVE | Director | 01 Apr 2023 | | Japan | October 1965 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| KAKUDATE, Yoshimichi RESIGNED | Secretary | 07 Aug 2002 | 31 May 2007 | | | Flat 24 7 Lambolle Road, Camden, London, NW3 4HS |
| MANO, Shoji RESIGNED | Secretary | 02 Apr 2001 | 07 Aug 2002 | | | Flat 83 55 Ebury Street, London, SW1W 9PB |
| MARQUISS, Julie RESIGNED | Secretary | 05 Feb 2001 | 02 Apr 2001 | | | 53 Stortford Road, Hoddesdon, Hertfordshire, EN11 0AL |
| CHRISTOU, Richard RESIGNED | Director | 01 Sep 2006 | 17 Nov 2009 | United Kingdom | October 1944 | Apartment 4 14 The Knightsbridge, Knightsbridge, London, SW7 1RH |
| DELGADO, Angeles Inmaculada RESIGNED | Director | 01 Jul 2015 | 01 Apr 2018 | Spain | December 1962 | Fujitsu Technology Solutions, Camino Cerro De Los Gamos 1, Pozuelo De Alarcon, Madrid, 28224, Spain |
| FUJISAKI, Michio RESIGNED | Director | 17 Jul 2001 | 15 Jul 2004 | | January 1938 | 5/10 Hakanodai 6 Chome, Shinagawa-Ku, Tokyo 142, FOREIGN, Japan |
| FURUTA, Hidenori RESIGNED | Director | 01 Jul 2015 | 01 Apr 2017 | England | December 1958 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| GILBERT, Roger, Dr RESIGNED | Director | 17 Nov 2009 | 31 Mar 2012 | United Kingdom | January 1948 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| GILBERT, Roger, Dr RESIGNED | Director | 16 Jul 2009 | 17 Jul 2009 | United Kingdom | January 1948 | Govers End, Bramfield Road Datchworth, Knebworth, Hertfordshire, SG3 6RX |
| HARA, Hirotaka, Dr RESIGNED | Director | 01 Jan 2019 | 01 Apr 2023 | Japan | April 1961 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| HARA, Hirotaka, Dr RESIGNED | Director | 01 Jul 2015 | 01 Apr 2017 | Japan | April 1961 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| INAMOTO, Yasushi, Doctor RESIGNED | Director | 01 Jun 2005 | 23 Jun 2008 | | October 1951 | 31 Greystoke House, Brunswick Road Ealing, London, W5 1AW |
| KONO, Makoto RESIGNED | Director | 01 Apr 2019 | 01 Apr 2020 | Japan | June 1959 | 4th Floor, Building 3,, Hyde Park Hayes, 11 Millington Road, Hayes, UB3 4AZ, England |
| KUMON, Kouichi RESIGNED | Director | 03 Jul 2013 | 01 Jul 2015 | Japan | August 1956 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| MANO, Shoji RESIGNED | Director | 02 Apr 2001 | 17 Jun 2005 | | September 1942 | Flat 83 55 Ebury Street, London, SW1W 9PB |
| MARTIN, Stephen John RESIGNED | Director | 05 Feb 2001 | 02 Apr 2001 | | September 1960 | 7 Lantern Way, West Drayton, Middlesex, UB7 9BU |
| MARUYAMA, Fumihiro, Dr RESIGNED | Director | 23 Jun 2008 | 21 Jun 2012 | United Kingdom | June 1955 | 355, Uxbridge Road, Ealing, W3 9RJ |
| MORITA, Toshihiko RESIGNED | Director | 01 Apr 2018 | 31 Mar 2019 | Japan | July 1960 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| MURAKAMI, Makoto, Mr. RESIGNED | Director | 01 Jul 2011 | 03 Jul 2013 | Japan | February 1953 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| MURANO, Kazuo, Dr RESIGNED | Director | 16 Jul 2004 | 01 Jul 2011 | Japan | November 1945 | 5-2-37-404 Higashi Gotanda, Shinagawa Ku, Tokyo, FOREIGN, Japan |
| NAKAO, Shigekatsu RESIGNED | Director | 28 Jul 2008 | 29 Jul 2008 | | January 1950 | 10 Shakespeare Gardens, Hampstead, London, N2 9LJ |
| NAKAO, Shigekatsu RESIGNED | Director | 22 Nov 2007 | 23 Nov 2007 | | January 1950 | 10 Shakespeare Gardens, Hampstead, London, N2 9LJ |
| NAKATA, Tsuneo, Dr. RESIGNED | Director | 21 Jun 2012 | 01 Apr 2018 | United Kingdom | August 1958 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| ROUZ, Adel Ben Mohamed, Dr RESIGNED | Director | 01 Jun 2005 | 31 Mar 2024 | England | January 1965 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| SASAKI, Shigeru, Mr. RESIGNED | Director | 01 Jul 2011 | 31 Dec 2018 | Japan | April 1956 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| SASO, Hideyuki, Dr. RESIGNED | Director | 16 Jul 2014 | 01 Apr 2017 | Japan | December 1952 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| SAVARY DE BEAUREGARD, Yves RESIGNED | Director | 01 Apr 2018 | 31 Mar 2019 | Belgium | September 1972 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| SUZUKI, Shoji RESIGNED | Director | 01 Apr 2017 | 01 Apr 2018 | Japan | July 1957 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| TAIT, Duncan Andrew RESIGNED | Director | 01 Apr 2012 | 31 Mar 2019 | England | March 1966 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| TAKENAKA, Masahiko RESIGNED | Director | 01 Apr 2018 | 31 Mar 2019 | England | May 1967 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| TOKITA, Takahito RESIGNED | Director | 01 Apr 2017 | 31 Mar 2019 | England | September 1962 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| TOMITA, Tatsuo, Mr. RESIGNED | Director | 01 Jul 2011 | 16 Jul 2014 | Japan | July 1949 | Hayes Park Central, Hayes End Road, Hayes, Middlesex, UB4 8FE |
| TOYODA, Ken, Dr RESIGNED | Director | 01 Apr 2020 | 01 Apr 2025 | Japan | February 1964 | 2nd Floor (West),, The Urban Building, 3-9 Albert Street, Slough, SL1 2BE, England |
| TSUDA, Toshitaka RESIGNED | Director | 02 Apr 2001 | 01 Sep 2006 | | April 1947 | 3400-23 Higashi-Tamagawa 3-Chome, Machida-Shi, Tokyo, FOREIGN, Japan |
| UEHARA, Sanya RESIGNED | Director | 01 Sep 2006 | 01 Jul 2011 | Japan | March 1954 | Otsuka 1709-18, Hachioji, Tokyo, FOREIGN, Japan |