Hideki Kurashige

Founder and Honorary Chairman
Apr. 1966 |
Joined IBM Japan, Ltd. |
Jan. 1993 |
Executive Vice President |
Nov. 1993 |
Chairman, Pricewaterhouse Consultants Co., Ltd. |
May 2000 |
Outside Director, Jusco Co., Ltd. (currently AEON Co., Ltd.) |
Oct. 2002 |
Managing Partner, IBM Business Consulting Services, Asia Pacific Chairman, IBM Business Consulting Services KK |
Feb. 2004 |
Director, President & CEO, Representative Executive Officer, Japan Telecom Co., Ltd. |
June 2006 |
Representative Director, President |
Oct. 2006 |
Representative Director, President, RHJI Industrial Partners Asia, Inc. |
Dec. 2007 |
Representative Director and Chairman, Senior Managing Director, RHJ International Japan, Inc. |
May 2008 |
Representative Director, CEO, the Company |
Apr. 2010 |
Representative Director, Chairman |
Apr. 2013 |
Representative Director, Chairman and President |
Sept. 2013 |
Outside Director, Adastria Co., Ltd. |
May 2016 |
Outside Director, Aeon Pet Co., Ltd. |
June 2018 |
Representative Director, Chairman, the Company |
June 2023 |
Founder and Honorary Chairman (current position) |
Ryuichi Tomimura

Chairman
Oct. 1983 |
Joined IBM Japan, Ltd. |
Oct. 1991 |
Joined Recruit Co., Ltd. |
Jan. 1994 |
Managing Partner, Pricewaterhouse Consultants Co., Ltd. |
Oct. 2002 |
Vice President, IBM Corporation Business Consulting Service, Asia Pacific |
Feb. 2004 |
Representative Director, Senior Executive Vice President, Japan Telecom Co., Ltd. |
June 2006 |
Director, Vice President |
Oct. 2006 |
Representative Director, Vice President, RHJI Industrial Partners Asia, Ltd. |
Dec. 2007 |
Representative Director, Managing Director, RHJ International Japan, Inc. |
May 2008 |
Director, Partner, the Company |
Apr. 2010 |
Director, Executive Vice President |
Aug. 2012 |
Outside Director, Plan・Do・See Inc. |
June 2015 |
Outside Director, Shinsei Bank, Limited |
June 2016 |
Representative Director, Executive Vice President, the Company |
June 2018 |
Representative Director, President |
May 2020 |
Outside Director, VECTOR INC. (current position) |
June 2023 |
Director and Chairman of the Board |
June 2024 |
Chairman (current position) Chairman, Director of the Board, SIGMAXYZ Inc. (current position) |
Oct 2024 |
Outside Director, INFOCOM CORPORATION (current position) |
Hiroshi Ota

Representative Director, President
Apr. 1993 |
Joined Japan Airlines Co., Ltd. |
Oct. 1998 |
Joined Pricewaterhouse Consultants Co., Ltd. |
Oct. 2006 |
Partner, IBM Business Consulting Services KK |
Apr. 2009 |
Partner, the Company |
Apr. 2015 |
Managing Director |
Apr. 2019 |
Senior Executive Officer |
Oct. 2021 |
Executive Officer, the Company Co-representative Director, SIGMAXYZ Inc. |
June 2022 |
Director |
June 2023 |
Representative Director, President (current position) Representative Director, President, SIGMAXYZ Inc. (current position) |
Shunichi Shibanuma

Representative Director, Executive VicePresident
Apr. 1995 |
Joined Bank of Japan (seconded to Ministry of Economy, Trade and Industry) |
Apr. 2004 |
Joined McKinsey & Company Incorporated Japan |
Sept. 2006 |
Executive Officer, Kazaka Securities Co., Ltd. |
Oct. 2010 |
Partner, the Company |
Apr. 2015 |
Managing Director |
Sept. 2016 |
Director, SX Capital, Inc. (current position) |
Apr. 2019 |
Senior Executive Officer, the Company |
Apr. 2021 |
President and Representative Director, SIGMAXYZ Investment Inc. (current position) |
Oct. 2021 |
Executive Officer, the Company |
June 2022 |
Director |
June 2023 |
Representative Director, Executive Vice President (current position) |
Shinya Tabata

Representative Director, CFO
Apr. 1985 |
Joined Ishikawajima-Harima Heavy Industries Co., Ltd. |
Sept. 1989 |
Joined IBM Japan, Ltd. |
Feb. 2004 |
Global Business Service CFO |
July 2006 |
Global Business Service CFO and CFO, IBM Business Consulting Services KK |
Oct. 2006 |
Global Financing CFO, IBM Japan, Ltd. |
Sept. 2008 |
CFO and Director of Corporate Planning and Finance Dept., the Company |
Sept. 2013 |
Director, CFO |
June 2019 |
Managing Director, CFO |
June 2023 |
Representative Director, CFO (current position) |
Sono Uchiyama

Director
Director in charge of Communication & Capability
Apr. 1993 |
Joined Pricewaterhouse Consultants Co., Ltd. |
Apr. 2002 |
Director of Communication and PR, IBM Business Consulting Services KK |
Apr. 2005 |
Director of Communication and Branding, Japan Telecom Co., Ltd. |
Apr. 2007 |
PR Manager, RHJ International Japan, Inc. |
May 2008 |
PR Manager, RHJ International Japan, Inc. and Director of Communication Dept., the Company |
Apr. 2017 |
Director of Communication / Knowledge Management Dept., the Company |
Apr. 2020 |
Director of Communication & Capability Section, the Company |
June. 2021 |
Director, the Company, Director of Communication & Capability Section |
Apr. 2023 |
Director in charge of Communication & Capability (current position) |
Komei Yamaguchi

Independent Outside Director
Apr. 1990 |
Joined INTEC Inc. |
Apr. 2010 |
General Manager of Public Utilities Promotion Dept. |
Apr. 2012 |
General Manager of Public Utilities Sales Dept. |
Oct. 2017 |
General Manager of Public Utilities Sales Dept. and General Manager of Healthcare Sales Dept. |
Apr. 2018 |
General Manager of Metropolitan Social Infrastructure Headquarters and General Manager of Healthcare Sales Dept. |
Oct. 2018 |
General Manager of Metropolitan Social Infrastructure Headquarters |
Apr. 2019 |
Executive Officer, General Manager of Social Infrastructure Business Division |
June 2022 |
Outside Director, the Company (current position) |
Apr. 2023 |
Managing Executive Officer, General Manager of Social Infrastructure Business Division, INTEC Inc. (current position) |
Makiko Yamamoto

Independent Outside Director
July 1995 |
Joined TMI Associates |
Apr. 1999 |
Entered the Legal Training and Research Institute of the Supreme Court of Japan |
Oct. 2000 |
Registered Tokyo Bar Association |
Sept. 2005 |
Simmons & Simmons (London) |
Sept. 2006 |
TMI Associates |
Feb. 2012 |
Registered Solicitor (England and Wales) |
June 2012 |
Simmons & Simmons (London) |
Sept. 2014 |
TMI Associates |
June 2016 |
Outside Corporate Auditor, Starzen Co., Ltd. |
June 2018 |
Outside Director, the Company (current position) |
June 2019 |
Outside Director (Audit & Supervisory Committee Member), Musashi Seimitsu Industry Co., Ltd. (current position) |
Feb. 2020 |
Registered at Fukuoka Bar Association TMI Partners LPC (Attorney at law)(current position) |
Mar. 2020 |
Outside Director, ASICS Corporation |
Sept. 2021 |
Outside Corporate Auditor, SUSMED, Inc.(current position) |
Makiko Yoshida

Independent Outside Director
Apr. 1984 |
Joined the Ministry of Posts and Telecommunications of Japanese Government |
July 2001 |
Director, Telecommunications User Policy Office,Telecommunications Bureau,Ministry of Internal Affairs and Communications |
Feb. 2004 |
Deputy Mayor, Setagaya City |
July 2007 |
Director, International Policy Division, International Department, Telecommunications Bureau, Ministry of Internal Affairs and Communications |
July 2010 |
Director, Budget and Accounts Division, Minister’s Secretariat, Ministry of Internal Affairs and Communications |
June 2013 |
Deputy Director-General (IT Policy), Minister’s Secretariat, Ministry of Economy, Trade and Industry |
Nov. 2013 |
Executive Secretary to the Prime Minister, Cabinet Secretariat |
July 2015 |
Director-General of the Global ICT Strategy Bureau, Ministry of Internal Affairs and Communications |
June 2016 |
Director-General of Minister’s Secretariat, Ministry of Internal Affairs and Communications |
July 2017 |
Director-General, Information and Communication Bureau, Ministry of Internal Affairs and Communications |
July 2019 |
Vice-Minister for Policy Coordination, Ministry of Internal Affairs and Communications |
Sept. 2020 |
Cabinet Public Relations Secretary, Cabinet Secretariat |
June 2022 |
President, The Association for Promotion of Public Local Information andCommunication (current position) |
June 2022 |
Independent Director and Audit and Supervisory Committee Member, Tokai Tokyo Securities Co., Ltd. (current position) |
June 2022 |
Visiting Professor, Showa Women’s University (current position) |
Sept. 2022 |
Senior Guest Researcher and Part-time Lecturer, Faculty of Science and Engineering, Waseda University (current position) |
June 2023 |
Outside Director, the Company (current position) |
Hiroshi Nakahara

Outside Director Independent Officer
(Audit & Supervisory Committee Member, full-time)
Apr. 1981 |
Joined Ministry of Finance |
July 2002 |
Counselor, the Supervision Bureau of Financial Services Agency |
July 2004 |
Director for Fiscal Investment and Loan Appropriation, the Financial Bureau of Ministry of Finance |
July 2005 |
Director, Government Financial Institutions Division of Minister’s Secretariat |
July 2009 |
Deputy Director-General, the Budget Bureau |
June 2013 |
Director-General, Accounting Center and President of Policy Research Institute, Ministry of Finance |
July 2014 |
Director-General, the Financial Bureau |
July 2015 |
Commissioner, National Tax Agency (resigned in June 2016) |
June 2017 |
Outside Director, the Company (resigned in June 2022) |
Oct. 2017 |
Senior Director, Shinkin Central Bank |
June 2022 |
Representative Director and Deputy President, Shinkin Central Bank (resigned in June 2024) |
June 2024 |
Outside Director (Audit & Supervisory Committee Member) (full-time), the Company (current position) |
Mitsuhiro Amitani

Outside Director Independent Officer
(Audit & Supervisory Committee Member, part- time)
Apr. 1985 |
Registered as an attorney at law Joined Hashidate Law Office |
Nov. 1989 |
Joined Wakita Law Office |
Mar. 1990 |
Attorney at law of Shimada, Seno, and Amitani Law Office (currently SAH & Co.) (current position) |
June 2006 |
Outside Audit & Supervisory Board Member, STANLEY ELECTRIC CO., LTD. (current position) |
May 2013 |
Outside Audit & Supervisory Board Member, HUB CO., LTD. (current position) |
June 2018 |
Outside Director, the Company |
June 2022 |
Outside Director (Audit & Supervisory Committee Member)(current position) |
Mitsuru Komiyama

Outside Director Independent Officer
(Audit & Supervisory Committee Member, part-time)
Aug. 1977 |
Joined Peat, Marwick, Mitchell & Co. (Tokyo) |
Mar. 1979 |
Registered as Certified Public Accountant in Japan |
Sept. 1983 |
Registered as U.S. Certified Public Accountant in the state of California |
Nov. 1984 |
Opened Komiyama & Co., CPAs |
Jan. 2007 |
Executive Representative Partner, Azabu Partners Tax & Accounting Co. (current position) |
July 2010 |
Deputy President, the Japanese Institute of Certified Public Accountants |
June 2015 |
Outside Director, NITTO KOHKI CO., LTD. (current position) |
June 2024 |
Outside Director (Audit & Supervisory Committee Member) , the Company (current position) |