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Director
President and CEO
Toshimitsu Nakano
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Born July 11, 1956 in Hyogo Prefecture. 1973 - Left Hyogo Prefectural Tatsuno Jitsugyo High School (part-time). 2011 - Completed Institute of Business and Accounting, Professional Graduate School, Kwansei Gakuin University. After working for Nippon Life Insurance Company and Alico Japan, established Work Data Bank Co., Ltd. in 1985 (now WDB Holdings Co., Ltd.). Championing the idea that Japan's future relies on its researchers, as well as fostering a corporate culture that seeks to discover the value underlying yet untapped and strives to create new value, he concurrently serves as director of several subsidiaries and other companies.
Senior Managing Director
Miki Otsuka
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Born January 16, 1964 in Hyogo Prefecture. 1986 - Graduated from the Department of English Studies, Kobe City University of Foreign Studies. 2009 - Completed Graduate School of Business Administration, Kobe University. Joined the Company in 1986. Took part in translation work, as a career coordinator, in sales and branch operations. 1995 - Certified as a licensed social insurance worker. Became a director in 1997 and senior managing director in 2000. Published the book "An Illustrated Guide to Work and the Art of Developing Self-Confidence in Temporary Workers" (CHUOKEIZAI-SHA, INC.) in 2000.
Managing Director
Masahisa Kato
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Born August 27, 1955 in Aichi Prefecture. 1979 - Graduated from the Department of Political Science, Faculty of Law, Keio University. Joined Takenaka Corporation in the same year. After serving as the sales manager of the Osaka head office and managing executive officer, he was appointed director and senior managing executive officer of the company in 2019, advisor to the company in 2023, and retired in 2024. Became an advisor to WDB Holdings in the same year, and became Managing Director.
Director (Full-time Audit and Supervisory Committee Member)
Shigekazu Ukai
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Born November 20, 1949 in Hyogo Prefecture. 1972 - Graduated from the Faculty of Commerce, Kansai University. 2000 - Earned his master's degree in economic informatics at the graduate school of Himeji Dokkyo University. 2001 - Registered as a tax accountant. By way of the Himeji Shinkin Bank and President of Himeji Real Estate Service, joined the Company and became Auditor in 2007. 2018 - Director (Full-time Audit and Supervisory Committee Member).
External Director
External Director
Kiyoyuki Kuroda
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Born January 12, 1970 in Osaka Prefecture. 1993 - Passed the Japanese bar exam. 1994 - Graduated from the Faculty of Law, Kansai University. 1996 - Registered as a lawyer. 2002 - Partner in the law firm Miyake and Partners. 2005 - External statutory auditor of the Company and external director in 2009. Areas of expertise - life insurance, labor, corporate and bankruptcy law.
External Director
Hiroshi Kimura
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Born September 5, 1963 in Hyogo Prefecture. 1987 - Graduated from the Faculty of Commerce, Keio University. Worked for Nomura Asset Management Co., Ltd., Morgan Stanley (US) and Morgan Stanley Securities (Japan). 2001 - Passed the Japanese bar exam. 2003 - Registered as a lawyer. 2005 - Established the Kimura law firm. Became an external statutory auditor of the Company in 2009 and external director in 2012. Areas of expertise - real estate litigation and bankruptcy law.
External Director (Audit and Supervisory Committee Member)
Satoshi Hamada
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Born October 3, 1952 in Hyogo Prefecture. 1976 - Graduated from the Faculty of Commerce, Hitotsubashi University. Passed 3rd level of the certified public accountant exam in 1981. After working with KPMG AZUSA LLC and others, established the certified public accounting firm Hamada Business Accounting in 1984. Became an external statutory auditor for the Company in 2005. 2018 - External Director (Audit and Supervisory Committee Member).
External Director (Audit and Supervisory Committee Member)
Tomoyoshi Arita
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Born February 1, 1948 in Hyogo Prefecture. 1970 - Graduated from the Faculty of Law, Chuo University. 1971 - Passed the Japanese bar exam. 1974 - Appointed public prosecutor. Left public service in 2010 after serving as director of Criminal Investigations in the Tokyo District Public Prosecutor's Office and the High Public Prosecutor's Office, as head of Public Safety at the Supreme Public Prosecutor's Office, and as chief prosecutor at the High Prosecutor level in Takamatsu, Sendai and Fukuoka. 2010 - Registered as a lawyer. Of counsel for City-Yuwa Partners, 2016 Law firm of Ginza Chuo. Became an external statutory auditor for the Company in 2011. Areas of expertise - compliance, internal controls and crisis management. 2018 - External Director (Audit and Supervisory Committee Member).
External Director (Audit and Supervisory Committee Member)
Minoru Meboso
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Born July 2, 1964, in Ishikawa Prefecture. 1988 - Graduated from the Faculty of Commerce, Doshisha University. 1989 - Joined Chuo Shinko Audit Corporation (later Misuzu Audit Corporation). 1997 - Registered as a Certified Public Accountant. After working at Tohmatsu & Co. (now Deloitte Touche Tohmatsu LLC), he established Mehoso Certified Public Accounting Office in 2024. 2025 - External Director (Audit and Supervisory Committee Member).
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