Active Officers
| Name ↑ | Role | Appointed | Nationality | Age | Country of Residence |
|---|
| Hiroaki Iizawa | Director | 1 Sept 2022 | Japanese | 57 years | Japan |
| Hiroki Saji | Director | 4 Apr 2022 | Japanese | 57 years | United Kingdom |
| Hiroto Ichiki | Director | 29 May 2015 | Japanese | 64 years | England |
| Katsusuke Ishida | Director | 1 Apr 2023 | Japanese | 54 years | United Kingdom |
| Katsusuke Ishida | Secretary | 29 Nov 2023 | - | - | - |
| Keisuke Koshijima | Director | 5 Jul 2010 | Japanese | 70 years | Japan |
Resigned Officers
| Name ↑ | Role | Appointed | Resigned | Nationality | Age |
|---|
| Akira Yajima | Director | 1 Jul 2008 | 27 Aug 2013 | Japanese | 64 years |
| Akira Yajima | Secretary | 18 Jul 2008 | 27 Aug 2013 | Japanese | - |
| David Hedge | Secretary | 1 Jul 2008 | 18 Jul 2008 | - | - |
| Hiroaki Hoshino | Director | 18 Jul 2008 | 5 Jul 2010 | Japanese | 85 years |
| Hiroaki Iizawa | Director | 8 Jun 2012 | 29 May 2015 | Japanese | 57 years |
| Hiroshi Izumitani | Director | 7 Jul 2010 | 6 Apr 2017 | Japanese | 70 years |
| Hiroshi Takei | Director | 5 Apr 2018 | 31 Jan 2024 | Japanese | 61 years |
| Hiroshi Takei | Secretary | 5 Apr 2018 | 29 Nov 2023 | - | - |
| Julian Mark Rudd-jones | Director | 5 Apr 2018 | 3 Apr 2023 | British | 71 years |
| Ken Uchida | Director | 1 Jan 2013 | 31 Mar 2015 | Japanese | 70 years |
| Masafumi Fukuyama | Director | 18 Jul 2008 | 5 Jul 2010 | Japanese | 79 years |
| Michiya Uchida | Director | 18 Jul 2008 | 1 Jan 2013 | Japanese | 66 years |
| Michiya Uchida | Director | 1 Jan 2013 | 5 Apr 2018 | Japanese | 66 years |
| Shigehiko Ueno | Director | 18 Jul 2008 | 5 Jul 2010 | Japanese | 81 years |
| Takahiko Tsukaguchi | Director | 1 Apr 2020 | 1 Apr 2024 | Japanese | 64 years |
| Teruaki Yamaguchi | Director | 18 Jul 2008 | 1 Apr 2020 | Japanese | 80 years |
| Yo Yatsuzuka | Director | 27 Aug 2013 | 5 Apr 2018 | Japanese | 52 years |
| Yo Yatsuzuka | Secretary | 27 Aug 2013 | 5 Apr 2018 | - | - |
| Yoichi Tsuchiyama | Director | 5 Apr 2018 | 1 Sept 2022 | Japanese | 62 years |