| HAYAKAWA, Akio ACTIVE | Director | 01 Jan 2004 | | United Kingdom | August 1975 | Akira House, 16/17 Brunleys, Kiln Farm, Milton Keynes, MK11 3EW, England |
| ITO, Tomoori ACTIVE | Director | 01 Mar 2023 | | Japan | February 1980 | Akira House, 16-17 Brunleys, Kiln Farm, Milton Keynes, MK11 3EW |
| UMEDA, Shingo ACTIVE | Director | 29 Sep 2015 | | Japan | August 1972 | Akira House, 16-17 Brunleys, Kiln Farm, Milton Keynes, MK11 3EW |
| HAYAKAWA, Myoshin RESIGNED | Secretary | | 01 Jan 1992 | | | 25 Decoy Avenue, Golders Green, London, NW11 0ES |
| OTA, Toshihiro RESIGNED | Secretary | | 14 Apr 2014 | | | 42 Colesbourne Drive, Downhead Park, Milton Keynes, Buckinghamshire, MK15 9AN |
| ROWLANDS, Julie RESIGNED | Secretary | 14 Apr 2014 | 10 Mar 2015 | | | Sansetsu Uk Ltd, Bradbourne Drive, Tilbrook Estate, Milton Keynes, Buckinghamshire, MK7 8AT, England |
| DENTONS SECRETARIES LIMITED RESIGNED | Secretary | 24 Nov 2008 | 24 Apr 2014 | | | One, Fleet Place, London, EC4M 7WS |
| BARTLE, James William RESIGNED | Director | 03 Mar 2014 | 31 Aug 2015 | England | September 1976 | Sansetsu (Uk) Ltd, Bradbourne Drive, Tilbrook, Milton Keynes, Buckinghamshire, MK7 8AT |
| CONDIE, Aidan Scott RESIGNED | Director | 04 Feb 2011 | 25 Jun 2012 | England | January 1948 | 56, Ramworth Way, Aylesbury, Buckinghamshire, HP21 7EX, United Kingdom |
| HAYAKAWA, Harumi RESIGNED | Director | 01 Mar 1996 | 27 Jun 2012 | United Kingdom | March 1948 | 25 Decoy Avenue, Golders Green, London, NW11 0ES |
| HAYAKAWA, Myoshin RESIGNED | Director | | 01 Feb 2005 | | January 1939 | 25 Decoy Avenue, Golders Green, London, NW11 0ES |
| IMPEY, Eric Howard RESIGNED | Director | | 08 Jan 1997 | | January 1942 | 19 Osprey Walk, Buckingham, Buckinghamshire, MK18 7JA |
| ISHIHARA, Shigenori RESIGNED | Director | | 13 Oct 2004 | | December 1938 | 2124 Nishiki, Naku-Ku, Nagoya, FOREIGN, Japan |
| MCILWEE, Ian RESIGNED | Director | 25 May 2005 | 31 Dec 2013 | United Kingdom | May 1948 | Peradeniya, Boxley Road, Chatham, Kent, ME5 9J |
| MORI, Yasuyuki RESIGNED | Director | 29 Sep 2015 | 01 Mar 2023 | Japan | January 1976 | Akira House, 16-17 Brunleys, Kiln Farm, Milton Keynes, MK11 3EW |
| OKADA, Katsumi RESIGNED | Director | | 12 Jun 2006 | | January 1937 | 14 Kozuka-Cho, Nakagawa-Ku, Nagoya, FOREIGN, Japan |
| OTA, Toshihiro RESIGNED | Director | | 01 Apr 2014 | United Kingdom | August 1954 | 42 Colesbourne Drive, Downhead Park, Milton Keynes, Buckinghamshire, MK15 9AN |
| ROWLANDS, Julie RESIGNED | Director | 27 Jul 2011 | 10 Mar 2015 | England | July 1968 | Akira House, 16-17 Brunleys, Kiln Farm, Milton Keynes, MK11 3EW, England |
| STANDISH, Mark John RESIGNED | Director | 01 May 2014 | 12 Sep 2014 | England | December 1959 | Sansetsu (Uk) Ltd, Bradbourne Drive, Tilbrook Estate, Milton Keynes, Buckinghamshire, MK7 8AT |