About Management & Members
Management Members
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CEO
Yoshimori Ito
2008: Founded a real estate brokerage business, later selling the company in 2012.
2012: Founded Itanji Inc., a provider of SaaS solutions for the real estate leasing sector. Successfully exited the company through a sale in 2018.
2020: Founded Toggle Holdings Inc. with the vision:
"We can change the world."
Academic Background:
Conducted Brain-Machine Interface (BMI) research in the Doctoral Program at the University of Tokyo, Graduate School of Engineering.
Earned a Master’s in Finance from Waseda University Graduate School. -
Executive Director
Satoshi Yamazaki
2007: Joined Nomura Real Estate Development Co., Ltd., initially working in the residential division before specializing in real estate consulting for publicly listed companies and high-net-worth individuals.
Inside Story (Japanese)
2012: Seconded to Nomura Securities Co., Ltd., where he engaged in private banking and business succession consulting.
2018: Appointed Director of Tsukuru Jisho Co., Ltd. (a group company).
2022: Appointed Director of our company (current role) and CEO of Tsukuru Jisho Trust Co., Ltd. (a group company).
2023: Appointed CEO of Tsukuru Jisho Co., Ltd. (current role).
Philosophy:
"Once you set a goal and raise the flag, you are the leader. What may seem impossible alone, we can achieve together."
Education: Bachelor’s degree in Commerce, Meiji University. -
Outside Director
Noboru Kotani
1981: Joined Boston Consulting Group (BCG), specializing in strategy formulation and execution support in the healthcare and consumer goods sectors.
2000: Founded Dream Incubator Inc. (DI), a strategic consulting and venture investment firm. As CEO, led the company to a successful IPO. Provided commercialization support for technology seeds at large corporations and IPO advisory for startups.
2005: Leveraging extensive experience as a business consultant, served as an external director for multiple companies, including Santen Pharmaceutical Co., Ltd., providing strategic guidance.
Publications:
"Consulting Year Zero Textbook" (PHP Institute)
Co-authored "Wisdom is Money" (PHP Institute)
Education:
Master’s degree in Mathematical Engineering, Graduate School of Engineering, The University of Tokyo
Master of Science (MS) in Management Science, Stanford University -
Outside Director
Shin Takeuchi
2001: Joined FUJISOFT ABC Inc. (now FUJISOFT Inc.)
2007: Became an independent freelance professional
2013: Appointed Director at BizReach, Inc.
2019: Appointed Director at Japan CTO Association (a general incorporated association)
2020: Appointed Director and CTO at Visional, Inc.
2021: Appointed External Director at Tsukuruba Inc.
2025: Appointed Director at Medley, Inc. (current role)
2025: Appointed External Director at our company (current role)
Audit & Supervisory Board Members
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Full-time Statutory Auditor
Natsumi Joki
2012: Joined Protiviti LLC, specializing in risk consulting.
2015: Joined EY Strategy and Consulting Co., Ltd., focusing on governance development and internal audit support.
2018: Joined Salesforce Japan, engaging in global internal audit operations.
2019: Appointed Auditor at the Japan Ice Hockey Federation (current role).
2024: Joined our company and appointed as Full-time Corporate Auditor (current role).
Philosophy: "Beyond the clouds, the sky is always blue."
Education: Bachelor’s degree in Accounting, Faculty of Commerce, Keio University. -
Outside Auditor
Mikinao Kitada
1976: Appointed as a Prosecutor at the Tokyo District Public Prosecutors Office.
Held various high-profile positions, including:
First Inspector-General of the Ministry of Foreign Affairs
Director-General of the Public Security Intelligence Agency
Chief Prosecutor of the Sapporo High Public Prosecutors Office and Osaka High Public Prosecutors Office
2014: Retired from public service and became a Visiting Attorney at Mori Hamada & Matsumoto.
2023: Established Kitada Mikinao Law Office.
As an attorney, specializes in corporate crisis management and misconduct investigations. Served as an outside director for multiple corporations, including Oji Holdings Corporation.
Current Roles:
Outside Director & Audit Committee Member, Mizuho Trust & Banking Co., Ltd.
Outside Director, Japan Pallet Rental Corporation
President, Asia Crime Prevention Foundation
Education: Bachelor’s degree in Law, Kyoto University. -
Outside Auditor
Kota Yamaguchi
2000: Completed Judicial Training and joined Nagashima Ohno & Tsunematsu as an attorney.
2008: Earned an LL.M. from Columbia University School of Law.
2008: Joined Debevoise & Plimpton (New York).
2009: Admitted to the New York State Bar.
2011: Established Kimura, Takushima & Yamaguchi Law Office.
Specializes in venture capital and startup financing, M&A, real estate transactions, and cross-border deals.
Education: Bachelor’s degree in Law, The University of Tokyo.
Executive Officers
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Executive CTO
Tatsuro Hisamori
2009:Joined DeNA Co., Ltd., engaging in the development and operation of e-commerce and social gaming platforms.
Inside Story (Japanese)
2015:Joined Microsoft Japan, promoting cloud adoption.
2020:Appointed Part-Time Government CIO Advisor at the Cabinet Secretariat, IT Strategic Headquarters.
2023:Appointed Executive Officer and CTO of our company (current role).
2024:Appointed CEO of Tsukuru AI Co., Ltd. (a group company, current role).
Philosophy:“Any day you decide to start something, today is always the earliest day.”
Education:Bachelor’s degree in Media Studies, Tokyo University of Technology. -
Executive Officer
Masamitsu Takasaki
2013: Joined Sumitomo Mitsui Banking Corporation, working in corporate finance service.
Inside Story (Japanese)
2016: Joined Nomura Real Estate Development Co., Ltd., primarily providing real estate consulting for publicly listed companies and high-net-worth individuals.
2017: Seconded to Nomura Real Estate Solutions Co., Ltd., receiving recognition for outstanding performance.
2019: Joined Tsukuru Jisho Co., Ltd. (a group company), launching the real estate development business.
2022: Appointed Executive Officer of our company (current role).
Appointed Executive Officer of Tsukuru Jisho Co., Ltd.
2024: Appointed Director of Tsukuru Jisho Co., Ltd. (current role).
Philosophy:“Everything is changing in the connection.”
Education:Bachelor’s degree in Fundamental Engineering, Tokyo University of Science. -
Executive Officer
Ryusuke Shinya
2011: Joined Sumitomo Realty & Development Co., Ltd., handling the acquisition of land for commercial use and promoting statutory redevelopment projects.
Inside Story (Japanese)
2017: Joined Nomura Real Estate Development Co., Ltd., primarily providing real estate consulting to publicly listed companies and high-net-worth individuals.
2019: Joined Tsukuru Jisho Co., Ltd. (a group company), focusing on real estate investment.
2021: Appointed Head of our Corporate Unit, establishing the corporate division in preparation for a public listing.
2024: Appointed Executive Officer of our company (current role).
Appointed Director of Tsukuru AI Co., Ltd. (a group company, current role).
Philosophy:“Whatever situation you find yourself in, it's up to you to make it work..”
Education:Bachelor’s degree in Law, Keio University. -
Executive Officer
Satoshi Tazoe
2010: Joined Boston Consulting Group G.K., engaging in strategy consulting.
Inside Story (Japanese)
2012: Joined ZIGExN Inc., focusing on corporate planning.
2016: Joined the University of Tokyo (National University Corporation), working on industry-academia collaboration.
2021: Joined JAFCO Group Co., Ltd., handling corporate planning and startup investments.
2024: Joined our company.
Appointed Executive Officer of our company (current role).
Philosophy:“Authority is not worth dignity..”
Education:Master’s degree, Graduate School of Information Science and Technology, Tokyo Institute of Technology.
Our team
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2017: Joined Forcia Inc. Initiated an industry-academia collaboration project leveraging his AI research, gaining experience in research and development, product development, and new business creation within DX business development.
2023: Joined our company as the first engineer, leading AI development.
Expertise: Specializes in econophysics. Prefers interdisciplinary problem-solving and designs PoCs, products, and businesses with an optimal balance between speed and quality.
Education: Ph.D., Graduate School of Informatics, Kyoto University. -
2016: Worked in various startups in Hong Kong, ranging from IoT to fintech, specializing in machine learning algorithms and software engineering.
2023: Joined our company and relocated to Japan as a new cultural challenge. Currently leading the data infrastructure project in the R&D team.
Education:
Master’s in Applied Artificial Intelligence, University of Exeter
Ph.D. in Applied Mathematics (Learning Theory), City University of Hong Kong" -
2013: Joined Sony Corporation, engaged in embedded software development and backend service development for PlayStation Network.
2020: Joined SRE Holdings, Inc., working as a full-stack engineer, handling a wide range of tasks including development, operations, and infrastructure management.
2024: Joined our company, responsible for cross-service platform engineering and site reliability engineering (SRE).
Education: Master’s degree, Graduate School of Science and Technology, Keio University. -
1994: Joined a system development company as a software engineer. Spent over 20 years specializing in software quality assurance (QA).
2024: Joined our company as the first QA engineer, leading QA members within the Scrum development team and overseeing quality analysis and improvement initiatives.
Current Role: Manages QA operations for AI services under development.
Education: Bachelor's degree, Faculty of Science, Kanagawa University. -
2003: Joined a webmail development company and spent over 10 years engaged in web development using Perl.
2013: Began teaching in programming communities, mentoring beginner programmers both within and outside the workplace.
2023: Joined our company to pursue his passion for working with maps. Currently involved in development, operations, and maintenance while learning various technologies, including GIS. -
2016: Joined Ichijo Komuten Co., Ltd. as a new graduate, handling the entire process of custom home sales, from land searching to final delivery.
2019: Started his career as an engineer at Rakspertners, engaging in diverse web development projects, including backend development with Java and Scala, and frontend development using Vue.js and React.
2024: Joined our company as a full-stack developer for Tsukuru AI. -
2014: Began working as an engineer specializing in web development using Perl.
2017: After joining Hatena, Inc., contributed to the development of a blog service and a manga viewer service. Alongside his main responsibilities, served as a board member of the Japan Perl Association, promoting Perl and organizing YAPC::Japan.
2025: Joined our company, engaging in the development of “Tsukuru AI” while also taking an active interest in technical outreach and public relations. -
2017: Withdrew from the Digital Communication program at Universidad del Pacífico in Chile.
2018: Graduated from a Web Programming program in Canada. Built expertise as a full-stack developer, proficient in Dart, JavaScript, and frameworks such as React and Flutter.
Languages: Fluent in Japanese, French, Spanish, and English.
Career: Gained experience at leading HR companies.
2024: Joined our company as a product engineer. -
2018: Started his career in grant consulting sales as a new graduate.
2019: Transitioned to engineering, beginning his career at a proptech startup, specializing in frontend development.
2021: Joined another company, contributing to frontend development for a hometown tax donation portal site.
2023: Joined our company and is currently working as a full-stack developer for Tsukuru AI. -
2020: Joined Raksul Inc. as a new graduate, working on e-commerce feature development using Vue.js and Ruby on Rails, as well as participating in new graduate recruitment.
2024: Joined our company as a Product Engineer, focusing on feature development for DeveNAVI, particularly in volume check functionality.
Education: Bachelor’s degree, Department of Information Science, Faculty of Engineering Science, Osaka University. -
Spent about 10 years as a yoga instructor, specializing in postnatal parent-child yoga. Served as a board member of the Japan Maternal and Child Health Exercise Association for five years, also working as a training course instructor.
2019: Joined the Graduate School of Information Sciences at Tohoku University as a technical assistant, working on gene co-expression data creation.
2024: Joined our company as an AI engineer in the product unit, focusing on open data collection and map development.
Education: Master’s degree in Chemical System Engineering, Graduate School of Engineering, The University of Tokyo. -
2024: Earned a Ph.D. in Science from the Graduate School of Advanced Science and Engineering, Hiroshima University. His research focused on integrating pure mathematics with computer science.
Expertise: Specialized in knot theory and 3-manifold theory, conducting research on highly abstract geometric algorithms and computational complexity. His field of expertise is computational topology.
2024: Joined our company, leveraging his experience in geometric algorithm development to work on optimizing building volume algorithms.
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2012: Joined Accenture Japan Ltd., leading new business strategy planning, execution, and promotion.
2016: Joined Recruit Co., Ltd., responsible for mid- to long-term business planning, competitive strategy formulation, and new business development as a Product Manager (PdM).
2020: Joined ExaWizards Inc., serving as Head of PdM, Customer Success (CS), and Marketing for the DX Assessment & Learning platform, leveraging AI-driven assessment and generative AI for talent management systems.
2024: Joined our company.
Education: Bachelor’s degree in Economics, Keio University. -
2012: Joined Accenture Japan Ltd., leading new business strategy planning, execution, and promotion.
2016: Joined Recruit Co., Ltd., responsible for mid- to long-term business planning, competitive strategy formulation, and new business development as a Product Manager (PdM).
2020: Joined ExaWizards Inc., serving as Head of PdM, Customer Success (CS), and Marketing for the DX Assessment & Learning platform, leveraging AI-driven assessment and generative AI for talent management systems.
2024: Joined our company.
Education: Bachelor’s degree in Economics, Keio University. -
2019: Joined Recruit Co., Ltd., working in job media sales.
2020: Joined PIXTA Inc., transitioning from sales to engineering. Engaged in frontend and backend development for a stock photo service.
2023: Joined our company as Product Manager for Tsukuru AI DeveNAVI.
Education: Bachelor’s degree, School of Social Sciences, Waseda University. -
2016: Joined Business Consultant Co., Ltd., focusing on consulting in organizational development and human resource development.
2021: Joined KAKEAI Inc. Primarily oversaw sales and customer success for a one-on-one support cloud service targeting enterprise clients, in addition to handling product management and leading the launch and promotion of free trials.
2025: Joined our company, dedicating efforts to customer success for “Tsukuru AI DeveNAVI.”
Education: Graduated from the Faculty of Commerce, Kansai University. -
2024: Graduated from Kobe University, Faculty of Global Human Sciences.
During university, served as the Kobe Chapter President of AIESEC Japan, an international NPO.
Simultaneously interned at Wivid Inc., a company specializing in new graduate recruitment.
Led the recruitment and training of approximately 100 interns.
Worked as a Recruiting Advisor (RA), supporting the hiring efforts of around 30 startups.
Engaged in our company’s new graduate recruitment process even before officially joining.
2024: Joined our company, focusing on product sales.
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2016: Joined Sumitomo Realty & Development Co., Ltd., engaging in large-scale development projects, including planning, promotion, government negotiations, and land acquisitions.
2022: Joined our company and was appointed Head of the MINE Business.
2023: Became CEO of Tsukuru Jisho Trust Co., Ltd. (a group company). Pivoted the MINE Business and launched a redevelopment project. (Current role)
2024: Appointed Executive Officer at Tsukuru Jisho Co., Ltd. (a group company). (Current role)
Education: Bachelor’s degree, Faculty of Letters, The University of Tokyo. -
2018: Joined Nomura Real Estate Solutions Co., Ltd., specializing in real estate brokerage with a focus on retail sales for high-net-worth individuals.
2023: Joined our company, initially working on disposition of in-house developed and income-generating properties. Currently part of the Development Planning Unit, contributing to land acquisition for WRC-structured condominium development and value-add projects.
In disposition operations, also involved in JV collaborations with other developers. -
2019: Joined Sumitomo Realty & Development Co., Ltd., working on multiple station-front redevelopment projects, including joint ventures (JVs), in both urban and suburban areas.
2023: Joined our company. Initially handled land acquisition for compact residential developments, before being assigned to the Redevelopment Unit. Currently focused on land assembly for development projects in central Tokyo and contributing to project strategy formulation.
Education: Bachelor’s degree, Faculty of Economics, Nagoya University. -
2006: Gained experience in architectural design and supervision for single-family and multi-family housing at an architectural firm.
2009: Joined Archi-Net Co., Ltd. as a Cooperative Housing Producer, handling land acquisition, planning, sales, and operations.
2023: Joined our company as Leader of the Development Promotion Team, driving team initiatives. Balances work and parenting as a mother of two.
Education: Master’s degree, Graduate School, Chiba University. -
2011: Joined Sekisui House, Ltd. as an architectural designer, working on planning and detailed design for custom homes and multi-family housing. Later, gained experience as a site supervisor, managing schedules, costs, quality, and safety.
2024: Joined our company as part of the Product Planning Team, contributing to manufacturing-related operations and the planning and development of new products.
Education: Master’s degree in Architecture, Graduate School of Science and Technology, Nihon University. -
2024: Graduated from the Department of Integrated Engineering, Chiba University. Conducted research on luminescent materials and completed a short-term study program at an overseas research lab. Served as second author on an international paper, which was selected for the front cover.
2024: Joined our company. As a member of the Development Planning Unit, engages in sales of in-house developed properties to high-net-worth overseas clients. Also participates in a broad range of activities, including land acquisition for new developments and involvement in the company’s emerging vacation rental business.
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2015: Joined Willgate Inc. as a new graduate, handling both sales and consulting for web marketing support. Later, as a manager in the new business division, he led the launch and structuring of social selling and webinar support services.
2023: Joined Lib Consulting Inc., providing growth consulting for venture companies.
2024: Joined our company, focusing on marketing operations across various business divisions. -
2014: Joined Daiwa Securities Co., Ltd., engaging in asset management consulting. Later, she was responsible for promotional strategy planning and execution, online business planning and development, and new graduate recruitment as a recruiter.
2022: Joined Recruit Co., Ltd., focusing on sales planning and customer success strategy for SaaS products.
2023: Joined our company. After contributing to the launch of a SaaS product, she is now involved in marketing. -
2024: Graduated from Hitotsubashi University, Faculty of Economics.
During his university years, he engaged in long-term web development internships until his third year while also serving as vice president of a student organization with over 100 members.
In his fourth year, he interned at Wivid Inc., focusing on the recruitment business. As the head of the Kanto branch, he supported both student job seekers and corporate hiring efforts.
2024: Joined our company, primarily working on marketing for Tsukuru AI. -
2015: Gained marketing and sales experience at Sansan, Inc.
2017: Took on PR responsibilities at a company specializing in cloud systems. As part of communications efforts for various stakeholders, planned and managed communities and events, and also served as a writer. Has since supported the PR activities of numerous startup companies.
2025: Joined our company, engaging in public relations.
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2016: Joined Lib Consulting Co., Ltd., providing management consulting services to a wide range of companies, from industry leaders to mid-sized and startup firms. Led projects spanning new business development, mid-term management planning, and tactical execution support.
Played a key role in talent development within the company, serving as an internal training instructor responsible for developing management consultants.
2024: Joined our company. After launching a real estate financial service, he now serves as the Head of Recruitment in the HR unit. -
2018: Began his career as a software engineer, working in web and game development.
2021: Transitioned into management and HR, specializing in organizational management and cultural development to drive business growth.
2024: Joined our company as part of the HR unit, taking on primary execution responsibility for UT-LAB.
Interests: Human history and technology.
Education: Bachelor’s and Master’s degrees from Kyoto University. -
Spent a decade from 2011 pursuing a career in the entertainment industry, including idol work, acting, and filmmaking, but faced setbacks before realizing her dreams.
While searching for a new aspiration, she encountered our company, inspired by its bold vision and ambition.
2022: Joined our company with a strong determination to change both her life and the world. Since the early founding days—when the company's full-time employee count was in the single digits—she has been responsible for mid-career and new graduate recruitment.
Currently focuses primarily on mid-career hiring for the real estate development division. -
2012:Joined Daiwa Securities. At the Investment Banking Division, dedicated to IPOs of about 20 companies, mainly Internet sector. Handled everything from the establishment of corporate internal management systems and institutional investor marketing and valuations.
2020:Joined GMO Financial Gate. As Head of Corporate Strategy Department, responsible for M&A, disclosure/IR, business planning, business management (planning, forecasting, and KPI), and public relations.
2025:Joined Toggle Holdings.
University of Massachusetts MBA -
2016: Worked as a judge at the Tokyo District Court and other courts.
2022: Co-organized a Franco-Japanese comparative law symposium on LGBTQ issues at the University of Tokyo.
2024: Joined our company as Head of the HR Unit and Legal Affairs (Attorney).
Languages: Japanese, English, French.
Education:
Bachelor’s degrees in Law and Literature, Keio University.
Juris Doctor, University of Tokyo Law School.
Former visiting researcher at Paris II University.
Completed training at the French National School for the Judiciary. -
2015: Joined an entertainment and music company, engaging in a wide range of roles, including app planning and sales, executive assistant in the president's office, entertainment venue launches, and HR. Her work spanned from business planning and operations to back-office functions.
As an HR professional, she managed new graduate recruitment and evaluation revisions for a corporate group with approximately 400 employees.
2024: Joined our company, contributing to recruitment activities and organizational management within the HR unit.
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2019: Joined Columbia Works Co., Ltd., initially working as a project assistant in the Investment Development Division before transitioning to the HR and General Affairs Department. Primarily focused on general affairs, leading initiatives to strengthen information security and enhance compliance frameworks.
2023: Joined our company as a general affairs specialist. Currently involved in a wide range of tasks, working to improve the company's internal environment and create a comfortable workplace.