Apr 1995 Joined the Company Jan 2018 Executive Officer Jan 2019 Senior Executive Officer; General Manager, Manufacturing Solutions Business Division Jan 2020 Assistant Segment Head, Manufacturing Solutions Segment; General Manager, Manufacturing Solutions Business Division Jan 2021 Managing Executive Officer; Segment Head, Manufacturing Solutions Segment; General Manager, Manufacturing Solutions Business Division Jan 2022 In charge of Manufacturing Solutions Segment and Communication IT Segment; Executive Officer, Dentsu Japan Network (currently dentsu Japan) Jan 2023 Senior Managing Executive Officer; General Manager, Business Division Jan 2024 DX President, dentsu Japan Mar 2024 Representative Director, President and Executive Officer, CEO and COO (current)

Apr 1988 Joined Diamond Computer Service Co., Ltd. (currently Mitsubishi Research Institute DCS Co., Ltd.) Jun 1992 Joined the Company Apr 2010 Executive Officer Jan 2019 Senior Executive Officer; Assistant Segment Head, Communication IT Segment Jan 2020 Managing Executive Officer; Segment Head, Communication IT Segment Jan 2021 Senior Managing Executive Officer; Segment Head, Communication IT Segment; in charge of X Innovation Division (thereafter also served as Segment Head, Business Solutions Segment; General Manager, Business Division; and Assistant in charge of Corporate Planning Division) Jan 2023 General Manager, Corporate Division

Apr 1992 Joined the Company Apr 2010 General Manager, EI Consulting Department, Engineering Solutions Business Division Oct 2012 Transferred to ITID Consulting Co., Ltd. (renamed ITID Co., Ltd. in Jan 2020) Jun 2015 Director, ITID Consulting Co., Ltd. Jan 2017 Seconded to the Company; Assistant Head, Advanced Technology Promotion Office Jan 2019 Assistant Head, Manufacturing Technology Division, Manufacturing Solutions Business Division Jan 2020 Representative Director, President, ITID Co., Ltd. (merged into the Company in Jan 2024) Jan 2022 Transferred to the Company; Executive Officer; General Manager, Manufacturing Solutions Business Division Jan 2023 Senior Executive Officer; General Manager, Manufacturing Solutions Business Division Jan 2024 Managing Executive Officer; Assistant, Business Division; General Manager, Project Creation Office Mar 2024 Managing Executive Officer; General Manager, Business Division; General Manager, Project Creation Office Apr 2024 DX President, dentsu Japan Jan 2025 Managing Executive Officer; General Manager, Business Division, the Company

Jul 1999 Joined Goldman Sachs Securities Co., Ltd. Jul 2002 Joined Morgan Stanley MUFG Securities Co., Ltd. (formerly Morgan Stanley Securities Co., Ltd.) Apr 2006 Joined Lehman Brothers Securities Co., Ltd. Jan 2009 Joined Monex Group, Inc. Jan 2014 Executive Officer; Head, New Business Planning Office, Monex Group, Inc. Apr 2014 Director, Monex Ventures Co., Ltd. Sep 2017 Joined Medical Note Inc.; Partner, Arbor Ventures Mar 2018 Director and CFO, Medical Note Inc. Dec 2020 Outside Director, Septeni Holdings Co., Ltd. Mar 2021 Outside Director (Audit and Supervisory Committee Member), KAYAC Inc. Apr 2021 Partner, DNX Ventures Dec 2021 Outside Director, HENNGE K.K. Mar 2022 Outside Director, the Company Jan 2025 Venture Partner, DNX Ventures

Apr 1990 Joined The Nippon Credit Bank, Ltd. Aug 1999 Joined Arthur Andersen (Tax Department), New York Office Jun 2002 Joined KPMG Peat Marwick, Tokyo Office (currently KPMG Tax Corporation) Oct 2005 Partner, KPMG Peat Marwick, Tokyo Office Mar 2023 Outside Director, the Company

Apr 1991 Joined Matsushita Electric Information Systems Nagoya Laboratory (currently Panasonic Advanced Technology Co., Ltd.) Dec 1999 Joined Motorola K.K. Jun 2004 Joined Seven Networks, Inc. Sep 2005 Joined Qualcomm, Inc. Jul 2009 Joined Fuji Soft Inc. Apr 2015 Managing Executive Officer, Fuji Soft Inc. Jan 2018 Joined CyberNet Systems Co., Ltd.; Senior Vice President and Executive Officer Mar 2018 Representative Director, Senior Vice President and Executive Officer Mar 2019 Representative Director, President and Executive Officer Jun 2020 Outside Director, Takara Tomy Co., Ltd. Mar 2021 Outside Director, Lion Corporation Mar 2024 Adviser, JSR Corporation Jun 2024 Senior Executive Officer; Chief Human Resources Officer (CHRO) and Diversity Promotion, JSR Corporation Mar 2025 Outside Director, the Company

Apr 1987 Assistant, Lecturer and Associate Professor, Osaka University Feb 1997 Visiting Researcher, University of California, Irvine Apr 1998 Professor, Osaka University Large-scale Computer Center (currently Cybermedia Center) Apr 2008 Center Director and Senior Researcher, Otemachi Network Research Center, National Institute of Information and Communications Technology Apr 2011 Adviser, National Institute of Information and Communications Technology Aug 2015 Director, Cybermedia Center, Osaka University May 2019 Special Adviser, Osaka Prefecture; Special Adviser, Osaka City Apr 2023 Professor, Faculty of Software and Information Science, Aomori University Jun 2024 Chairperson, Global Environment Centre Foundation Mar 2026 Outside Director, the Company

Apr 1994 Joined Dentsu Inc. Jan 2014 General Manager, 16th Sales Bureau, Dentsu Inc. Aug 2018 Deputy General Manager, 5th Business Producing Bureau, Dentsu Inc. Jan 2022 Managing Director, 16th Business Producing Bureau, Dentsu Inc. Jan 2024 Executive Officer (Business Producing), Dentsu Inc.; Board Member, Tokyo Advertising Association Jan 2026 BX President, dentsu Japan; Senior Executive Officer (BX), Dentsu Inc.; Director, Ignition Point Co., Ltd.; Director, Dentsu Consulting Co., Ltd. Mar 2026 Director, the Company

Apr 1990 Joined Hakuhodo Inc. Feb 1998 Joined Dentsu Inc. Dec 2006 Seconded to Dentsu Consultants Indonesia; CEO, Dentsu Media Indonesia Apr 2008 Senior Manager, Global Business Division, Dentsu Inc. Apr 2013 General Manager, Global Business Division, Dentsu Inc. Jul 2014 Senior Deputy General Manager, Dentsu Aegis Network Business Division, Dentsu Inc. Jan 2016 Executive Vice President, Dentsu Aegis Network Indonesia Jan 2020 General Manager, Account Lead Department 2, 2nd Business Producing Bureau, Dentsu Inc. Jan 2022 General Manager, Account Lead Department 1, 2nd Business Producing Bureau, Dentsu Inc. Jan 2023 General Manager, 2nd Business Producing Bureau, Dentsu Inc. Jan 2026 Executive Business Producer, 2nd Business Producing Bureau, Dentsu Inc. Mar 2026 Outside Director (Full-time Audit and Supervisory Committee Member), the Company

Apr 2000 Registered as attorney-at-law; joined Bingham Sakai Mimura Aizawa Foreign Law Joint Enterprise (formerly Sakai Hideyuki Law Office) Jan 2010 Seconded to Financial Services Agency (Financial Companies Division and Credit Institutions Response Office) Apr 2012 Returned to Bingham Sakai Mimura Aizawa Foreign Law Joint Enterprise; Counsel Jan 2013 Partner, Bingham Sakai Mimura Aizawa Foreign Law Joint Enterprise Apr 2015 Partner, Anderson Mori & Tomotsune (currently Anderson Mori & Tomotsune Foreign Law Joint Enterprise) Jun 2015 Outside Audit & Supervisory Board Member, the Company Mar 2016 Outside Director, the Company Jun 2022 Outside Director, Carlit Holdings Co., Ltd. (currently Carlit Co., Ltd.) Mar 2023 Outside Director (Audit and Supervisory Committee Member), the Company Jun 2025 Outside Director (Audit and Supervisory Committee Member), MS&AD Insurance Group Holdings, Inc.

Sep 1989 Joined Minato Audit Corporation (currently Ernst & Young ShinNihon LLC) Aug 1993 Registered as Certified Public Accountant Feb 2004 Registered as Certified Tax Accountant Jun 2005 Founded Tenrindo Co., Ltd.; Representative Director Jun 2013 Outside Audit & Supervisory Board Member, Dentsu Music and Entertainment Inc. Apr 2014 Executive Partner, Partners Consulting Co., Ltd.; Partner, Partners Tax Corporation Mar 2016 Outside Audit & Supervisory Board Member, the Company Dec 2018 Audit & Supervisory Board Member, Aeronext Inc. Mar 2023 Outside Director (Audit and Supervisory Committee Member), the Company