January 1998 Managing Director, Microsoft Co., Ltd. (currently Microsoft Japan Co., Ltd.)
May 2000 President and Representative Director, the company
August 2003 Managing Director, Softbank BB Corp. (currently SoftBank Corp.)
June 2005 Representative Director, President and CEO, Betrusted Japan Co.,Ltd (currently Cybertrust Japan Co., Ltd.)
April 2006 Senior Managing Executive Officer, Information Systems and CS Headquarters, Vodafone K.K. (currently SoftBank Corp.)
June 2006 Director, Japan Telecom Co., Ltd. (currently SoftBank Corp.)
June 2007 Senior Managing Executive Officer and CISO Head of Information Systems and CS, SoftBank Telecom Corp. (currently SoftBank Corp.)
June 2007 Director, Senior Managing Executive Officer and CISO Information Systems/CS Supervisor, Softbank BB Corp. (currently SoftBank Corp.)
June 2010 Director, Senior Managing Executive Officer and CISO Information Systems/CS Supervisor, SoftBank Mobile Corp. (currently SoftBank Corp.)
April 2012 Chief Executive Officer (CEO) (current position)
June 2012 Representative Director and President, the Company (current position)
June 2012 Chairman of the Board, Cybertrust Japan Co., Ltd.
June 2013 Director, Fontworks Inc. (to present)
August 2014 Director, Miracle Linux Corporation (currently Cybertrust Japan Co., Ltd.)
July 2015 Director, ASORA Tech Corp. (current position)
June 2016 President and Representative Director, Fontworks, Inc.
October 2017 President and Representative Director, Cybertrust Japan Co., Ltd.
April 2018 Chairman, the Company
Executive Vice President
Kunihiro Fujinaga (September 26, 1970)
Biography
May 1994 Joined H.R. Osaka Inc. (currently Horizon Hotels, Inc.)
October 2000 Joined SOFTBANK Networks Inc. (currently SoftBank Corp.)
April 2006 Seconded to Japan Telecom Co, Ltd. (currently SoftBank Corp.) Head of Business Unit, Manager, EM Department 1, Engagement Management Division, Internet Data Business Group
May 2010 Head of Sales Unit, General Manager, 1st Sales Control Department, 2nd Enterprise Sales Division, Japan Telecom Co, Ltd.
May 2014 Head of Sales and Business Units, Deputy Senior Manager, 2nd Enterprise Sales Division, Japan Telecom Co, Ltd.
April 2015 Acting Head of 2nd Enterprise Sales Division, Enterprise Business Unit, SoftBank Mobile Corp. (currently Softbank Corp.)
July 2015 Executive Officer, 2nd Enterprise Sales Division Head, Enterprise Business Unit, SoftBank Corp.
April 2016 Executive Officer, Head of Enterprise Business Strategy Division, Enterprise Business Unit, SoftBank Corp.
September 2016 Director, SBI FinTech Incubation Co., Ltd.
July 2018 Senior Vice President, Head of Enterprise Business Strategy Division, Enterprise Business Unit, SoftBank Corp.
July 2018 Director, INCUDATA Corp. (to present)
June 2019 Director, OfaaS Corp.
March 2020 Director, Cinarra Systems, Inc. (to present)
April 2020 Senior Vice President, Responsible for Business Strategy & Marketing, Enterprise Business Unit, SoftBank Corp.
June 2020 Director, Air Trust Corp.
April 2021 Executive Vice President, Deputy Head of Corporate Business SoftBank Corp.
June 2023 Executive Vice President, Enterprise Business Unit, SoftBank Corp. (to present)
June 2023 Company Director
July 2023 Director, Treasure Data, Inc. (to present) Director, Generative AX Corp. (to present)
April 2024 Executive Vice President and Deputy Head of Corporate Affairs SoftBank Corp. (to present)
June 2024 Appointed as director of SB C&S Co., Ltd. (to present)
April 2025 Executive Vice President of the Company (current position)
Member of the Board
Makoto Noda (October 26, 1970)
Biography
April 1993 Joined Sumitomo Corporation
October 1999 Joined Digital Club Co., Ltd. (currently a SoftBank affiliate)
July 2002 Softbank BB Corp. (currently SoftBank Corp.)
June 2013 Vice President, Head of Mobile Solutions Div. SoftBank Mobile Corp. (currently SoftBank Corp.)
January 2015 Director, RF Optimization PJ Engineering, Sprint Corp. (USA)
April 2017 Vice President, Head of Mobile Network Div, SoftBank Corp.
April 2017 Vice President, Head of Mobile Network Div, Wireless City Planning Corp.
June 2017 Director, Wireless City Planning Corp.
July 2018 President & CEO, ALES Corp. (to present)
April 2020 Vice President, Head of 5G & IoT Solution Div, SoftBank Corp.
July 2021 Vice President, Head of Engineering, Enterprise Business Unit,
June 2022 Director, IDC Frontier Inc. (to present)
June 2023 Senior Vice President, Head of Engineering, Enterprise Business Unit, SoftBank Corp.
(to present)
September 2023 Director, AXSEED,Inc. (to present)
October 2024 Member of the Board, the Company (to present)
Member of the Board
Keiichi Makizono(March 26, 1968)
Biography
April 1990 Joined S&I Co., Ltd.
January 1999 Joined Cisco Systems G.K.
(currently Cisco Systems)
January 2002 Joined SoftBank Corp. (currently SoftBank Group Corp.)
June 2003 Director, BBIX, Inc.
December 2004 Vice President, SoftBank Corp.
February 2007 Board Director, BB Backbone Corp.
June 2013 Executive Vice President, SoftBank Corp.
July 2013 Executive Officer, Wireless City Planning Co., Ltd.
November 2014 Board Director, Wireless City Planning Inc. President and CEO, BBIX, Inc. Director, BBIX SINGAPORE PTE. LTD. Director, BBIX HONG KONG PTE. LTD.
October 2016 Director, SB Innoventure Corp.
April 2018 Director, LINE Mobile Corporation
June 2018 Senior Vice President & Chief Information Officer,
SoftBank Corp.
October 2018 CEO, BBIX USA, Inc. Managing Cirector, BBIX Europe B.V.
March 2020 Director, Cinarra Systems, Inc. (to present)
July 2021 Director, BBIX Inc. (to present)
June 2023 Executive Vice President&Chief Information Officer, SoftBank Corp. (to present)
July 2023 Board Director, GenerativeAX Corp.
July 2024 Board Director, Chief Information Officer & Chief Information Security Officer, Gen-AX Corp. (to present)
August 2024 Board Diretor & Chief Operating Officer, Wireless City Planning Inc. (to present)
October 2024 Member of the Board, the Company (to present)
Member of the Board
Mitsuhiro Sato (September 16, 1962)
Biography
April 1986 Joined Abe Software Corporation (currently ABEISM CORPORATION)
January 1991 Joined SoftBank Corp. (currently SoftBank Group Corp.)
August 1998 Joined the company
December 2000 Vice President, the Company
October 2009 Vice President and General Manager, Web Business Service Department, the Company
June 2010 Member of the Board, the Company (to present)
May 2012 Representative Director and President, M-SOLUTIONS, Inc.
June 2012 Vice President, CTO, CISO, and General Manager, Research &Business Development Promotion Division, the Company
June 2013 Director, Fontworks Inc. (to present)
March 2014 Director, Cybertrust Japan Co., Ltd.
October 2015 Executive Vice President, CSO, Head of Technology Unit, and General Manager, PM Partner Division, the Company
June 2016 Director, MIRACLE LINUX CORPORATION (currently Cybertrust Japan Co., Ltd.)
December 2016 Representative Drector and President, Kan Corporation
April 2018 Senior Executive Vice President, CSO and Head of Technology Unit, the Company
April 2019 Vice President and Executive Officer and CSO, the Company
June 2019 Director, M-SOLUTIONS, Inc.
July 2020 Director, DENEN Co., Ltd. (to present)
April 2021 Director, I/O SYSTEM INTEGRATION CO., LTD.
June 2021 Director, Kan Corporation (to present)
April 2022 Executive Vice President, CSO and Head of Business Operations of the Company
(As of April 1, 2025)
*The official English names of job titles are as follows: CEO: Chief Executive Officer
Corporate Auditor
Corporate Auditor
Mitsumasa Ueno(November 9, 1952)
Biography
October 1978 Joined SHOWA AUDIT CORPORATION (currently Ernst & Young ShinNihon LLC)
January 1982 Registered as a Certified Public Accountant
August 1985 Seconded to Amsterdam office of KPMG
October 1989 Seconded to San Francisco office of Ernst & Young
May 2002 Representative Partner Shin Nihon & Co. (currently Ernst & Young ShinNihon LLC)
October 2008 Executive Board Member, Ernst & Young SinNihon LLC
July 2009 Representative Director & COO, Ernst & Young Transaction Advisory Services Co., Ltd. (currently EY Strategy and Consulting Co., Ltd.)
June 2015 Full-time Audit & Supervisory Board Member, the Company (to present)
Audit & Supervisory Board Member, FUJITSU BROAD SOLUTION&CONSULTING Inc. (currently Fujitsu Ltd.)
June 2015 Full-time Audit & Supervisory Board Member, the Company (to present)
Audit & Supervisory Board Member, FUJITSU BROAD SOLUTION&CONSULTING Inc. (currently Fujitsu Ltd.)
February 2016 Auditor, JAPAN ASSOCIATION FOR UNHCR
June 2016 Director and Audit and Supervisory Committee Member FUJITSU BROAD SOLUTION&CONSULTING Inc. (currently Fujitsu Ltd.)
April 1989 Joined International Telecom Japan Inc.
April 2005 Director of Business Planning Department, Finance Division, Japan Telecom Co. Ltd. (currently SoftBank Corp.)
October 2005 Director of Accounting Department, Finance Division, the said company
April 2007 Senior Director of Accounting Management Unit, Finance Division, the said company
April 2008 Senior Director of Accounting Management Unit, Finance Division & Senior Director of Internal Control Group, the said company
April 2009 Vice President, Deputy Head of Purchasing Division, SoftBank Mobile Corp. & SoftBnak BB Corp. & SoftBank Telecom Corp. (All of them are currently SoftBank Corp. The following are collectively referred to as "Three Telecommunication companies")
April 2010 Vice President, Head of Purchasing Division, Three Telecommunication companies
July 2010 Vice President, Head of Finance & Accounting Division, SoftBank Mobile Corp. (currently SoftBnak Corp.)
August 2010 Trustee Representative, WILLCOM, Inc. (currently SoftBank Corp.)
July 2012 Vice President, Head of Finance & Accounting Division, SoftBank Mobile Corp. (currently SoftBnak Corp.)
July 2013 Vice President & CFO & Deputy General Manager of Financial Unit, WILLCOM, Inc. (currently SoftBank Corp.)
April 2014 Assistant Director of Corporate Planning Department, Grobal Synergy Promotion Unit, Corporate Planning, SoftBank Corp. (currently SoftBank Group Corp.)
March 2018 Vice President, Head of Finance & Accounting Division, Finance Unit & General Manager of Listing Operations Promotion Department, Finance Unit, SoftBank Corp.
June 2018 Audit & Supervisory Board Member, the Company (to present)
July 2019 Vice President, Head of Finance & Accounting Division, Financial Unit, SoftBank Corp. (to present)
April 2021 Audit & Supervisory Board Member, A Holdings Corporation (to present)
May 2024 Assistant to the CFO and Executive Accounting Advisor, Finance and Accounting Division, SoftBank Corp. (current position)
(As of April 1, 2025)
Vice President
CEO Executive Officer
Shinichi Ata
Managing Executive Officer and CSO
Akira Kitamura
Executive Vice President
Masaki Watanabe
Senior Vice President CCO
Seiichi Masaoka
Executive Officer and CIO
Makoto Aoki
Vice President CDO & CISO
Kengo Kanazawa
Vice President CMO
Ikuma Uehara
(As of April 1, 2025)
*The official English names of job titles are as follows: CSO: Chief Strategy Officer CCO: Chief Compliance Officer CIO: Chief Information Officer CDO: Chief DX Officer CISO: Chief Information Security Officer CMO: Chief Marketing Officer
(September 28, 1958)
Kunihiro Fujinaga
(September 26, 1970)
Makoto Noda
(October 26, 1970)
Keiichi Makizono
(March 26, 1968)
Mitsuhiro Sato
(September 16, 1962)
Akira Kitamura 
Masaki Watanabe 
Seiichi Masaoka 
Makoto Aoki 
Kengo Kanazawa 
Ikuma Uehara