| GRAY, Helen Jacqueline ACTIVE | Secretary | 05 Apr 2019 | | | | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| KAWANO, Shuji ACTIVE | Director | 09 Apr 2025 | | England | September 1969 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| KOJO, Hiroshi ACTIVE | Director | 20 Apr 2026 | | Japan | October 1968 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| SENGOKU, Yoshimasa ACTIVE | Director | 30 Mar 2007 | | England | March 1968 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| TANABE, Kenshi ACTIVE | Director | 13 Apr 2022 | | Greece | February 1972 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| CLARK, Rita RESIGNED | Secretary | 17 Apr 2003 | 28 Jul 2006 | | | 6 Angus Road, Goring By Sea, Worthing, BN12 4BL |
| KINOSHITA, Yuichiro RESIGNED | Secretary | | 16 Mar 1994 | | | 10 Elmstead Close, Totteridge, London, N20 8ER |
| MORIMOTO, Hisao RESIGNED | Secretary | 28 Apr 1997 | 17 Apr 2003 | | | Willoway Madeira House, Madeira Road, West Byfleet, Surrey, KT14 6DL |
| SENGOKU, Yoshimasa RESIGNED | Secretary | 28 Jul 2006 | 30 Mar 2007 | | | 13 Charnwood Place, Whetstone, London, N20 0PE |
| WATSON, Etsuko RESIGNED | Secretary | 30 Mar 2007 | 05 Apr 2019 | | | Floor 28, One Canada Square, Canary Wharf, London, E14 5AA, United Kingdom |
| YAMASHITA, Masafumi RESIGNED | Secretary | 16 Mar 1994 | 28 Apr 1997 | | | 37 Deena Close, Acton, London, W3 0HR |
| BIZEN, Takeichi RESIGNED | Director | | 31 Jan 2000 | | October 1936 | 12 Birley Lodge, 63 Acacia Road St Johns Wood, London, NW8 6BJ |
| FUKUCHI, Masayuki RESIGNED | Director | 13 Mar 2008 | 15 Mar 2010 | | December 1949 | Flat 108, 20 Abbey Road, St Johns Wood, London, NW8 9BW |
| HARADA, Takeshi RESIGNED | Director | 31 Mar 2006 | 13 Mar 2008 | | February 1950 | 2-14-16 Suzukakedai, Sanda-City, Hyogo, Japan |
| HORIUCHI, Ryota RESIGNED | Director | 09 Apr 2018 | 10 Jun 2020 | United Kingdom | May 1971 | Floor 28, One Canada Square, Canary Wharf, London, E14 5AA, United Kingdom |
| ICHII, Takashi RESIGNED | Director | 31 Jan 2000 | 31 Mar 2005 | | October 1942 | Flat 47, 20 Abbey Road St Johns Wood, London, NW8 9BJ |
| MIYOSHI, Tomohiro RESIGNED | Director | 15 Mar 2010 | 09 Apr 2018 | United Kingdom | November 1969 | Floor 28, One Canada Square, Canary Wharf, London, E14 5AA, United Kingdom |
| MORIMOTO, Hisao RESIGNED | Director | 28 Apr 1997 | 17 Apr 2003 | | February 1948 | Willoway Madeira House, Madeira Road, West Byfleet, Surrey, KT14 6DL |
| OCHIAI, Katsunobu RESIGNED | Director | 10 Jun 2020 | 20 Apr 2026 | Japan | December 1974 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| SAITO, Takashi RESIGNED | Director | 06 Apr 2016 | 06 Apr 2019 | Japan | July 1954 | Floor 28, One Canada Square, Canary Wharf, London, E14 5AA, United Kingdom |
| SANAGA, Toshiki RESIGNED | Director | 08 Apr 2019 | 20 Apr 2026 | Japan | January 1970 | Borough Yards, 13 Dirty Lane, London, SE1 9PA, United Kingdom |
| SASADA, Kenji RESIGNED | Director | 17 Apr 2003 | 18 Mar 2009 | | June 1946 | 6 Birley Lodge, 63 Acacia Road St Johns Wood, London, NW8 6BJ |
| TERAOKA, Isamu RESIGNED | Director | 13 Apr 2015 | 06 Apr 2016 | Japan | June 1958 | 5th Floor Devon House, 58-60 St. Katharines Way, London, E1W 1LB, United Kingdom |
| WATANABE, Katsushi RESIGNED | Director | 15 Mar 2010 | 13 Apr 2015 | England | November 1968 | 5th Floor, Devon House, 58-60 St Katharines Way, London, E1W 1LB |
| YAMASHITA, Masafumi RESIGNED | Director | 01 Apr 2005 | 01 Apr 2006 | | March 1953 | 6-1-18-511 Masugata Tama-Ku, Kawaski City, Kanagawa Prefecture, Japan |
| YAMASHITA, Masafumi RESIGNED | Director | 16 Mar 1994 | 28 Apr 1997 | | March 1953 | 37 Deena Close, Acton, London, W3 0HR |