| NATH, Siân Faru Eva Wilkie ACTIVE | Secretary | 06 Jul 2018 | | | | 3rd & 4th Floor, The Clarendon Works, 37-39 Clarendon Road, Watford, Herts, WD17 1JA, England |
| CAMPBELL-FERGUSON, Duncan Andrew ACTIVE | Director | 01 Apr 2023 | | England | February 1968 | 3rd & 4th Floor, The Clarendon Works, 37-39 Clarendon Road, Watford, Herts, WD17 1JA, England |
| INAHO, Takanori ACTIVE | Director | 01 Apr 2024 | | Netherlands | March 1968 | 3rd & 4th Floor, The Clarendon Works, 37-39 Clarendon Road, Watford, Herts, WD17 1JA, England |
| OHNUMA, Daiji ACTIVE | Director | 01 Oct 2025 | | Netherlands | September 1969 | 3rd & 4th Floor, The Clarendon Works, 37-39 Clarendon Road, Watford, Herts, WD17 1JA, England |
| BRUSH, David Wallis RESIGNED | Secretary | 11 Oct 2014 | 06 Jul 2018 | | | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| BRUSH, David Wallis RESIGNED | Secretary | 29 Apr 1994 | 31 Mar 2003 | | | 10, Montague Road, Berkhamsted, Hertfordshire, HP4 3DS |
| GRAHAM, John Martin RESIGNED | Secretary | | 29 Apr 1994 | | | 14 Folly Close, Radlett, Herts, WD7 8DR |
| POWELL, Stephen William RESIGNED | Secretary | 01 Oct 2009 | 10 Oct 2014 | | | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD, England |
| PRICE, Christopher Ronald RESIGNED | Secretary | 01 Apr 2003 | 30 Sep 2009 | | | 45 The Gardens, Watford, Hertfordshire, WD17 3LN |
| BUTLER, Nicholas David RESIGNED | Director | 01 Apr 2002 | 31 Aug 2009 | | March 1952 | N/A, Oaklyn House, Shootersway, Berkhamsted, Hertfordshire, HP4 3NJ |
| CAMPBELL-FERGUSON, Andrew Duncan RESIGNED | Director | 01 Oct 2018 | 01 Apr 2020 | England | February 1968 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| CLARK, Robert Adam RESIGNED | Director | 01 Apr 2020 | 31 Mar 2023 | United Kingdom | September 1966 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| CLARK, Robert Adam RESIGNED | Director | 01 Nov 2015 | 01 Oct 2018 | England | September 1966 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| FUDEUCHI, Kazuo RESIGNED | Director | 01 Apr 1994 | 28 Jun 1996 | | January 1933 | Westelijk Halfrond 471, 1183 Jd Amstelveen, The Netherlands |
| FUJII, Keisuke RESIGNED | Director | 01 Dec 2019 | 24 Sep 2025 | Netherlands | March 1975 | 3rd & 4th Floor, The Clarendon Works, 37-39 Clarendon Road, Watford, Herts, WD17 1JA, England |
| HAMA, Noriyuki RESIGNED | Director | 26 Jun 2013 | 31 Jul 2015 | Japan | July 1954 | Owa 3-3-5, Suwa City, Nagano Prefecture, Japan |
| HAMA, Noriyuki RESIGNED | Director | 08 Dec 2008 | 30 Jun 2011 | Netherlands | July 1954 | Fluweelboomlaan 17, Amstelveen, 1185pp, Netherlands |
| HAMAMOTO, Masaaki RESIGNED | Director | | 17 Sep 1997 | | May 1940 | Duivelandselaan 49, 1181 Jt Amstelveen, Netherlands, FOREIGN |
| HOFFSTETTER, Claude Robert RESIGNED | Director | 08 Oct 1997 | 28 Sep 2001 | | October 1938 | Prinsengracht 278, Amsterdam, 1016 HJ, Netherlands |
| HORIUCHI, Hiroshi RESIGNED | Director | 09 Jul 1998 | 25 Nov 2001 | | June 1948 | 3-4-8 Akahane, Okaya City, Nagano, Japan |
| IDE, Eiji RESIGNED | Director | 07 Jun 2004 | 08 Dec 2008 | | July 1952 | Simon Carmiggeltlaan 5, 1187 Vn Amstelveen, The Netherlands |
| IDE, Eiji RESIGNED | Director | 18 Sep 1996 | 31 Mar 2002 | | July 1952 | 3 Spring Place, Windermere Avenue, London, N3 3QB |
| INOUE, Shigeki RESIGNED | Director | 26 Jun 2013 | 31 Jul 2015 | Japan | October 1955 | Owa 3-3-5, Suwa City, Nagano Prefecture, Japan |
| ISHII, Yasuo RESIGNED | Director | 18 Sep 1996 | 22 Jun 1998 | | May 1942 | Meander 373, Amstelveen, Netherlands |
| ISOMURA, Keijiro RESIGNED | Director | 08 Jan 2002 | 07 Jun 2004 | | October 1960 | 34 North Crescent, Finchley, London, N3 3LL |
| KAITO, Jun RESIGNED | Director | 01 Apr 1994 | 17 Sep 1997 | | May 1946 | Rozenoord 21, 1181 Mb Amstelveen, Netherlands, FOREIGN |
| KAWANA, Masayuki RESIGNED | Director | 11 Oct 2014 | 31 Jul 2015 | Japan | July 1964 | 3-3-5, Owa, Suwa City, Nagano, Japan |
| KITAMURA, Hideki RESIGNED | Director | 01 May 2013 | 30 Nov 2019 | Netherlands | June 1960 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD, England |
| KUBOTA, Kenji RESIGNED | Director | 26 Jun 2013 | 10 Oct 2014 | Japan | December 1953 | Owa 3-3-5, Suwa City, Nagano Prefecture, Japan |
| MARUYAMA, Masayoshi RESIGNED | Director | 01 Jul 2011 | 30 Apr 2013 | Netherlands | June 1953 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD, England |
| NAGAFUSA, Yoshiro RESIGNED | Director | 01 Apr 2021 | 31 Mar 2024 | Netherlands | January 1963 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| NAGANUMA, Junimitsu RESIGNED | Director | | 31 Mar 1994 | | September 1942 | Rondeel 48, Amsterdam 1083 Me, The Netherlands |
| OGUCHI, Toru RESIGNED | Director | 08 Jan 2002 | 01 May 2003 | | October 1950 | Rembrandtweg 21c, Amstelveen, 1181 Ge, Netherlands |
| OKANO, Yuzo RESIGNED | Director | | 12 Mar 1993 | | July 1947 | Marie Von Regteren Altenahuf 11, Amsterdam 1083 Bt, Netherlands |
| OLLE RIBALTA, Ramon RESIGNED | Director | 28 Sep 2001 | 26 Jun 2007 | | December 1950 | N/A, Beysterveld 135, Amsterdam, 1096EJ, The Netherlands |
| PETFORD, Anthony Daniel RESIGNED | Director | 01 Feb 2012 | 31 Oct 2015 | England | January 1959 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD, England |
| PRICE, Christopher Ronald RESIGNED | Director | 01 Sep 2009 | 31 Jan 2012 | United Kingdom | August 1961 | 45, The Gardens, Watford, Herts, WD17 3LN |
| SAKISAKA, Masakuzu RESIGNED | Director | 18 Sep 1996 | 17 Sep 1997 | | May 1947 | 4-1-17 Kogan-Dori Suwa-Shi 392, Nagano, Japan, FOREIGN |
| TABA, Hiromi RESIGNED | Director | 08 Dec 2008 | 24 Jun 2015 | The Netherlands | January 1953 | 136, Doornburg, Amsterdam, 1081 JX, Netherlands |
| TAKIZAWA, Takehiko RESIGNED | Director | 16 Apr 2007 | 08 Dec 2008 | | January 1958 | 14 Western Gardens, London, W5 3RU |
| YAMAMOTO, Kazuyoshi RESIGNED | Director | 25 Jun 2015 | 31 Mar 2021 | Netherlands | March 1960 | Westside, London Road, Hemel Hempstead, Hertfordshire, HP3 9TD |
| YUGUCHI, Yorimasa RESIGNED | Director | | 20 Feb 1996 | | February 1946 | Beggars Roost 23 Chiltern Lodge, Wyatts Road Chorleywood, Rickmansworth, Hertfordshire, WD3 5TB |