| WILKES, Timothy Christopher Eric ACTIVE | Secretary | 01 Apr 2015 | | | | 6, Mitre Passage, Greenwich Peninsula, London, SE10 0ER, England |
| KURITA, Hirotoshi ACTIVE | Director | 30 Oct 2024 | | Japan | November 1969 | Kodansha Ltd, 2-12-21 Otowa, Bunkyo-Ku, Tokyo, Japan |
| LU, Alvin ACTIVE | Director | 30 Oct 2024 | | United States | August 1969 | 25, East 22nd Street, New York, New York, 10010, United States |
| SAKUDA, Takashi ACTIVE | Director | 30 Oct 2024 | | United States | March 1960 | 25, East 22nd Street, New York, New York, 10010, United States |
| TAKAMI, Yohei ACTIVE | Director | 30 Oct 2024 | | Japan | March 1976 | Kodansha Ltd, 2-12-21 Otowa, Bunkyo-Ku, Tokyo, Japan |
| WILKES, Timothy Christopher Eric ACTIVE | Director | 20 Dec 2016 | | England | August 1964 | 6, Mitre Passage, Greenwich Peninsula, London, SE10 0ER, England |
| GREEN, Malcolm Peter Lusk RESIGNED | Secretary | | 01 Apr 2015 | | | Rough Withies Chapel Lane, Egerton, Ashford, Kent, TN27 9BX |
| FUMIIRI, Hidetoshi RESIGNED | Director | | 04 Jun 2004 | | October 1941 | 49 Kotake-Cho 2-Chome, Nerima-Ku, Tokyo 176, Japan |
| FURUKAWA, Kohei RESIGNED | Director | 18 Mar 2014 | 30 Oct 2024 | Japan | July 1957 | Kodansha Ltd., 2-12-21 Otowa, Bunkyo-Ku, Tokyo, Japan |
| GREEN, Malcolm Peter Lusk RESIGNED | Director | | 20 Dec 2016 | United Kingdom | December 1954 | Rough Withies Chapel Lane, Egerton, Ashford, Kent, TN27 9BX |
| HATANO, Fumio RESIGNED | Director | 22 Feb 1999 | 19 Jun 2006 | | April 1940 | 3-1-4 Oji, Kita-Ku, Tokyo, 1140002, Japan |
| HATTORI, Toshiyuki RESIGNED | Director | | 18 Jul 1991 | | August 1913 | 24-7 Tabata 3-Chome, Kita-Ku Tokyo 114, FOREIGN, Japan |
| HIRAGA, Sumio RESIGNED | Director | | 22 Feb 1999 | | December 1935 | 30-14 Kitamachi 1-Chome, Nerima-Ku Tokyo 176, Japan |
| HIROTA, Koji RESIGNED | Director | 15 Jun 2009 | 08 Sep 2011 | Japan | January 1956 | N/A, Koshigoe 791-8, Kamakura, Kanagawa, 248-0033, Japan |
| IRIE, Yoshio, Chairman RESIGNED | Director | 08 Sep 2011 | 18 Mar 2014 | Japan | December 1955 | 2-12-21, Otowa, Bunkyo-Ku, Tokyo, 112-8001, Japan |
| ISHIKAWA, Masaaki RESIGNED | Director | 04 Jun 2004 | 03 Mar 2008 | | January 1948 | 1308-6 Isshiki, Hayama, Kanagawa 240-0193, Japan |
| KANEMARU, Tokuo RESIGNED | Director | 29 Mar 2017 | 30 Oct 2024 | Japan | September 1957 | 6, Mitre Passage, Greenwich Peninsular, London, SE10 0ER, England |
| KANEMARU, Tokuo RESIGNED | Director | 17 Mar 2008 | 08 Sep 2011 | Japan | September 1957 | 7-9-706, Tateno Cho, Nerima Ku, Tokyo, Japan |
| KONDO, Shinji RESIGNED | Director | 27 Jun 1994 | 05 Jun 2002 | | May 1940 | 19-13 Sayamadai 3-Chome, Sayama-Shi, Saitama Prefecture, 35013, Japan |
| MAEDA, Shozo RESIGNED | Director | 15 Jun 2009 | 26 Apr 2011 | Japan | July 1945 | N/A, Higashigaoka 2-6-22, Meguro-Ku, Tokyo, Tokyo, 152-0021, Japan |
| MATSUBA, Yoshitaka RESIGNED | Director | | 01 Sep 1992 | | September 1933 | 78 Kotake-Cho 1 Chome, Nerima-Ku Tokyo 179, FOREIGN, Japan |
| NAKADA, Hiroshi RESIGNED | Director | 08 Jun 2012 | 30 Oct 2024 | Japan | June 1965 | Kodansha Ltd., 2-12-21 Otowa, Bunkyo-Ku, Tokyo, 112-8001, Japan |
| NOMA, Sawako RESIGNED | Director | | 18 Jun 2010 | Japan | July 1943 | 4-10 Sekiguchi 2-Chome, Bunkyo-Ku, Tokyo 107, FOREIGN, Japan |
| RAZZALL, Edward Timothy RESIGNED | Director | | 23 Jun 1999 | | June 1943 | 9b Landsdowne Walk, London, W11 9LN |
| SAINOWAKI, Kazuhide RESIGNED | Director | 25 Jun 1997 | 04 Jun 2004 | | October 1943 | 3-35-13-608 Sakuradai, Nerima-Ku, Tokyo, FOREIGN, Japan |
| SATOH, Toshikazu RESIGNED | Director | 01 Sep 1992 | 01 Jun 2000 | | August 1941 | C-601 Kotesashi Heights, 1-7 Kotesashi Tokorozawa, Saitama F359, FOREIGN, Japan |
| SHIMADA, Yasuo RESIGNED | Director | | 01 Sep 1992 | | September 1934 | 2-2-5-505 Asahigaoka, Kiyose-Shi Tokyo 204, FOREIGN, Japan |
| SUZUKI, Keiji RESIGNED | Director | | 23 Jun 1999 | | January 1943 | 1339 8 Nishi Koiso, Oiso Cho, Naka Gun, Kanagawa Prefecture, 255, Japan |
| TASHIRO, Tadayuki RESIGNED | Director | 01 Sep 1992 | 04 Jun 2004 | | May 1942 | 27-27 Oizumigakuencho, 2-Chome Nerima-Ku, Tokyo 178, Japan |
| TOMITA, Mitsuru RESIGNED | Director | 19 May 2006 | 15 Jun 2009 | | August 1947 | Yoyogi 5-Chome 30-1, Shibuya-Icu, Tokyo 151-0053, FOREIGN, Japan |
| USUI, Nobuyuki, Director RESIGNED | Director | 08 Sep 2011 | 08 Jun 2012 | Japan | June 1966 | Kodansha Ltd., 2-12-21 Otowa, Bunkyo-Ku, Tokyo, Japan |
| YAMANE, Ryu RESIGNED | Director | 17 Mar 2008 | 29 Mar 2017 | Japan | September 1951 | 5-2-6-505, Koishikawa, Bunkyo Ku, Tokyo, Japan |
| YOKOYAMA, Yoshitaka RESIGNED | Director | 04 Jun 2004 | 01 Mar 2008 | | December 1948 | 2-25-14 Kouyama, Nerima Ku, Tokyo, 176-0022, FOREIGN, Japan |
| YOSHIBA, Osamu, Director RESIGNED | Director | 08 Sep 2011 | 30 Oct 2024 | Japan | October 1958 | Kodansha Ltd., 2-12-21 Otowa, Tokyo, 112-8001, Japan |