| NAGAHIRO, Hideyuki ACTIVE | Director | 07 Sep 2026 | | England | May 1966 | 16, St. John's Lane, London, EC1M 4BS, United Kingdom |
| UCHIMURA, Shunro ACTIVE | Director | 07 Sep 2026 | | Japan | August 1982 | 16, St. John's Lane, London, EC1M 4BS, United Kingdom |
| SMYLIE, Neal RESIGNED | Secretary | 25 Oct 2017 | 01 Jun 2019 | | | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG, England |
| YEOLAND, Allison RESIGNED | Secretary | 08 Oct 2010 | 25 Oct 2017 | | | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG |
| ANSON, Peter John RESIGNED | Director | 02 Jul 2018 | 01 Jun 2019 | Australia | November 1966 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG, England |
| BOYTE, Murray Raymond RESIGNED | Director | 08 Oct 2010 | 11 Jan 2017 | Australia | November 1947 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG |
| ENGLAND, Robert Charles RESIGNED | Director | 17 Dec 2021 | 27 Oct 2025 | England | August 1963 | The Bailey, 16 Old Bailey, London, EC4M 7EG, England |
| KANZAKI, Sayaka RESIGNED | Director | 18 Dec 2025 | 07 Sep 2026 | United Kingdom | November 1984 | 16, St. John's Lane, London, EC1M 4BS, United Kingdom |
| KAWAKAMI, Norifumi RESIGNED | Director | 08 May 2017 | 01 Jun 2019 | Japan | April 1965 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG, England |
| KINO, Yoshihiko RESIGNED | Director | 18 Dec 2025 | 07 Sep 2026 | United Kingdom | July 1988 | 16, St. John's Lane, London, EC1M 4BS, United Kingdom |
| MATHEWS, Brett Ronald RESIGNED | Director | 08 Oct 2010 | 02 Jul 2018 | Australia | August 1946 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG |
| MATHEWS, Garth Richard RESIGNED | Director | 08 Oct 2010 | 02 Jul 2018 | Australia | October 1953 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG |
| MATSUI, Hiroyasu RESIGNED | Director | 08 May 2017 | 15 Jul 2025 | United Kingdom | July 1965 | The Bailey, 16 Old Bailey, London, EC4M 7EG, England |
| MIKI, Takao RESIGNED | Director | 08 May 2017 | 01 Jun 2019 | Singapore | October 1971 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG, England |
| NAGAHIRO, Hideyuki RESIGNED | Director | 14 Mar 2024 | 18 Dec 2025 | England | May 1966 | Saffron Court, 14b St Cross Street, London, EC1N 8XA, England |
| SADA, Masashi RESIGNED | Director | 15 Jul 2025 | 18 Dec 2025 | United Kingdom | March 1968 | The Bailey, 16 Old Bailey, London, EC4M 7EG, England |
| SASAKI, Kenichi RESIGNED | Director | 18 Dec 2025 | 07 Sep 2026 | Japan | October 1967 | 16, St. John's Lane, London, EC1M 4BS, United Kingdom |
| SASAKI, Kenichi RESIGNED | Director | 08 May 2017 | 01 Jun 2019 | Japan | October 1967 | Herschel House, 58 Herschel Street, Slough, Berkshire, SL1 1PG, England |
| SCOTT, Jonathan Paul RESIGNED | Director | 01 Jun 2019 | 18 Oct 2021 | England | December 1961 | Saffron Court, 14b St Cross Street, London, EC1N 8XA, United Kingdom |