Corporate Functions
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Fukutaro Ishii
Representative Director / Chief Executive Officer
Fukutaro Ishii
Representative Director / Chief Executive Officer
In 2006, he joined Nomura Securities and was assigned to wealth management. In 2012, he moved to Mitsubishi UFJ Merrill Lynch PB Securities (now Mitsubishi UFJ Morgan Stanley PB Securities) to work in private banking for ultra-high-net-worth individuals, earning recognition in the Morgan Stanley Masters Club and Chairman's Club. In 2016, he joined Credit Suisse Securities, handling private banking, M&A, and investment banking tasks. He also served as both a player and manager to rebuild the Nagoya branch, earning the Best of RM award in the Asia-Pacific region and joining the Chairman's Club.
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Tatsuya Okumura
Board Director / Chief Financial & Compliance Officer
Tatsuya Okumura
Board Director / Chief Financial & Compliance Officer
Certified Public Accountant (CPA), Tax Accountant. Specializes in M&A and finance. Involved in various cases including tender offers (TOB), management buyouts (MBO), stock swaps, third-party allocations, valuations, and capital policy development for IPOs, as well as acting as an intermediary and other roles. Joined Nomura Securities in 2007 in sales. Passed the CPA exam in 2016 and subsequently worked at Deloitte Touche Tohmatsu LLC, handling audit and IPO support for listed companies. In 2019, engaged in financial advisory (FA) and M&A mediation at S Networks. Registered as a CPA in 2021 and since then has been involved in financial advisory services (FAS) at Yamada Consulting Group. Became a registered tax accountant in 2022 and assumed the role of representative at Okumura Accounting Office.
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Shinya Kondo
Executive Officer / Head of Internal Audit Office
Shinya Kondo
Executive Officer / Head of Internal Audit Office
Joined Fuyo Auto Lease Co., Ltd. in 2007. Engaged in leasing and installment sales of vehicles and transfer equipment for domestic corporations, as well as sales of casualty insurance. In 2020, joined Assetin Auto Services Co., Ltd. as an independent leasing company. Formed alliance contracts with various domestic leasing companies and engaged in leasing services targeting domestic corporations and wealthy individuals through consulting-based proposals. Offered lease products include communication equipment, transportation facilities, industrial machinery, and store equipment, among others.
Advisory
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Yasuyuki Tanaka
Managing Director / Chief Investment Officer
Yasuyuki Tanaka
Managing Director / Chief Investment Officer
Nearly 40 years of experience in managing financial assets, including foreign exchange, fixed income, global equities, Japanese equities, and hedge funds, at leading global financial institutions such as Citibank, Morgan Stanley, and UBS. At Morgan Stanley, spent several years at the firm’s New York headquarters, engaging in U.S. equity sales for institutional investors. Upon returning to Japan, served as Head of the Foreign Equities Team and also covered Japanese equities for institutional clients. Later joined Sparx Asset Management, serving as Head of Japanese Equity Research. At UBS, leveraged extensive experience to serve as a multi-asset investment advisor for high-net-worth clients. Subsequently relocated to Singapore, where further investment experience was gained as Chief Investment Officer (CIO) at a family office. In 2021, joined Mitsubishi UFJ Morgan Stanley Securities and played a key role as Head in establishing a specialized equity sales division. Joined the Company in 2025.
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Yuko Takano
Director/ Investment Advisor
Yuko Takano
Director/ Investment Advisor
Joined Tokai Tokyo Securities in 2012. After working in retail sales, transferred to the Global Markets Division in 2013, where she was mainly involved in marketing US stocks as a foreign stock research salesperson. In 2018, she was seconded to a US subsidiary and was involved in US market research based in New York. During her secondment, she also appeared in the media and interned with an analyst team at a US investment bank. After returning to Japan in 2019, she was once again in charge of promoting US stock sales to both internal and external customers as a research salesperson.
Relationship Management
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Mitsuharu Okuhara
Executive Officer / Head of Investment Advisory Department
Mitsuharu Okuhara
Executive Officer / Head of Investment Advisory Department
Joined Tokyo Tokai Securities in 2009. In 2018, joined Mitsubishi UFJ Morgan Stanley PB Securities, specializing in asset management for high-net-worth individuals, business succession, and M&A support. In 2021, joined Sumitomo Mitsui Trust Bank, where as a founding member of a joint venture with UBS Wealth Management, engaged in asset management utilizing Lombard loans, and supported transactions for residential and investment real estate.
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Ken Oono
Vice President / Relationship Manager
Ken Oono
Vice President / Relationship Manager
Joined Sumitomo Mitsui Trust Bank in 2010, gaining experience in both retail and corporate banking. Assigned to the Wealth Management Department in 2021, providing advisory services to high-net-worth clients, particularly business owners, in business succession planning, real estate brokerage, and financing. Received the FY2023 Executive Award for outstanding performance. Subsequently led business strategy development and the promotion of a joint venture with UBS Securities in the Private Banking Business Promotion Department. Joined PrivateBANK Co., Ltd. in 2025, providing family office services to ultra-high-net-worth clients with a focus on asset management and comprehensive financial and non-financial consulting.
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Asahi Koike
Associate / Relationship Manager
Asahi Koike
Associate / Relationship Manager
Worked as a tax consultant for start-up managers at a tax accounting firm. Mainly involved with corporations, but also with over 60 clients including sole proprietors. Specific duties include accounting bookkeeping, tax return preparation, tax saving measures, fundraising support, cloud accounting implementation support, seminars, etc. Also led the organization's education system project and managed over 10 members as a CS team leader. Joined Monolith in 2024.
Athlete Support
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Kana Yahara
Vice President / Athlete Support
Kana Yahara
Vice President / Athlete Support
Joined Monolith RIA Inc. in April 2026. Oversees client support and operational functions, with a primary focus on asset management and international projects.
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Arisa Usami
Associate / Athlete Support
Arisa Usami
Associate / Athlete Support
Joined Monolith RIA Inc. in April 2026. Oversees client support and operational functions, with a primary focus on asset management and international projects.
U.S. Team
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Takashi Tanaka
Takashi Tanaka
Since 2005, engaged in the management of equities, fixed income, and real estate investments in the United States. In the real estate sector, has been involved in capital raising exceeding USD 320 million and real estate development projects totaling over USD 1.2 billion.
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Gerald S. Bennett
Gerald S. Bennett
Background in military leadership in the U.S. Navy, with strong expertise in business planning and financial analysis. Oversees real estate investment analysis and leads the build-out of client service teams.
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Jonathon D.Blackburn
Jonathon D.Blackburn
Served as Chief Investment Officer at major U.S. corporations and privately held companies. Possesses advanced expertise in taxation and oversees clients’ U.S. tax compliance and procedures.
External Advisors
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Junji Sakurada
Investment Research Partner
Junji Sakurada
Investment Research Partner
Investment Research Partner. Worked in Japanese equity research at major securities firms including Goldman Sachs, where he achieved the youngest-ever top ranking in both the Nikkei Analyst Rankings and Institutional Investor analyst rankings. Subsequently served as Head of Japan Long/Short Equity at one of the world’s leading hedge funds. Founded Singapore-based investment advisory firm Marina Bay Capital Advisors Pte Ltd.
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Sohsuke Takahashi
Legal Advisor
Sohsuke Takahashi
Legal Advisor
Managing Partner of Kaname Partners. Specializes in corporate and financial law, with extensive experience in structured finance, asset management, M&A, and cross-border transactions. Admitted to practice law in both Japan and California, bringing strong international expertise.
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Masayuki Tanabe
Tax Advisor
Masayuki Tanabe
Tax Advisor
Worked in the sales promotion department of a major domestic non-life insurance company, engaging in planning and promotion of insurance sales through bank counters nationwide, including mega banks. After leaving the company, appointed as the President of an insurance agency specializing in the housing industry market. Subsequently, supported the establishment and operation of captives, warranties, small-amount short-term insurance, and more at a major European insurance broker and consulting firm, with numerous achievements beyond the scope of traditional insurance. Joined Monolith as a business partner in 2022.
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Takeshi Watanabe
Head of Captive Insurance
Takeshi Watanabe
Head of Captive Insurance
Began career in the sales planning division of a major Japanese non-life insurance company, where engaged in the planning and promotion of bancassurance initiatives with financial institutions nationwide, including major banks. Subsequently served as Representative Director of an insurance agency specializing in the housing industry. Later, at a leading European insurance brokerage and consulting firm, supported the establishment and operation of a wide range of insurance-related structures, including captive insurance companies, warranty programs, and small-amount short-term insurance. Joined Monolith as a business partner in 2022.