NTT DOCOMO Executive and Leadership Team

May, 2026

Leadership Overview

NTT DOCOMO has 8 executives leading key functions including finance, legal, and operations.

Driven by innovation, NTT DOCOMO provides essential telecommunication services, shaping the future of wireless connectivity and digital interaction across Japan and beyond.

Leadership Roles at NTT DOCOMO

  • Chief Financial Officer - Anna Karen
  • Executive Vice President & Chief Financial Officer - Hirotaka Sato
  • Managing Director, Chief Financial Officer - Tsubouchi Kazuto
  • President's Office - Katsutoshi Ozawa
  • President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc - Prakash Pd
  • President - Simone Ranucci
  • Chief of Staff - Dai Sasaki
  • Chief Legal Officer - Tsutomu Abe
  • Anna Karen - Chief Financial Officer

    Anna Karen, the Chief Financial Officer at NTT DOCOMO, directs the company's financial strategy and operations. This leadership role involves managing all fiscal activities, including budgeting, financial planning, and reporting, ensuring robust financial health. Karen's oversight extends to investment strategies and capital allocation, directly supporting NTT DOCOMO's expansion in wireless internet and LTE network development. By meticulously analyzing market trends and financial performance, Anna Karen guides resource deployment to maximize profitability and shareholder value. This executive ensures compliance with all financial regulations and drives efficiency across all fiscal departments. The strategic financial guidance provided by Karen is critical for sustaining NTT DOCOMO's competitive edge in the dynamic telecommunications sector.

    Hirotaka Sato - Executive Vice President & Chief Financial Officer

    Hirotaka Sato, the Executive Vice President & Chief Financial Officer at NTT DOCOMO, spearheads the company's financial architecture and fiscal management. This senior role encompasses the strategic direction of all financial planning, accounting, and reporting functions, ensuring the integrity and transparency of NTT DOCOMO's financial statements. Sato's leadership is crucial for managing the financial implications of expanding wireless internet services and maintaining robust LTE telephone networks. By overseeing capital expenditures and financial risk management, Hirotaka Sato supports sustainable growth and operational stability. This executive's deep financial acumen guides investment decisions and resource allocation, directly impacting NTT DOCOMO's ability to innovate and compete globally. The financial strategies implemented by Sato are fundamental to the company's long-term success and market position.

    Tsubouchi Kazuto - Managing Director, Chief Financial Officer

    Tsubouchi Kazuto, the Managing Director, Chief Financial Officer at NTT DOCOMO, directs the company's comprehensive financial operations and strategic fiscal planning. This critical role involves overseeing all aspects of financial management, including budgeting, forecasting, and investor relations, ensuring the fiscal stability of NTT DOCOMO's extensive telecommunication services. Kazuto's expertise is vital for managing the financial aspects of deploying advanced wireless internet and LTE telephone networks across Japan. By driving financial discipline and optimizing resource allocation, Tsubouchi Kazuto supports the company's commitment to delivering cutting-edge NFC infrastructure services. This executive's strategic financial leadership is instrumental in navigating market complexities and achieving sustained profitability, reinforcing NTT DOCOMO's position as a leader in the telecom industry.

    Katsutoshi Ozawa - President's Office

    Katsutoshi Ozawa, in the President's Office at NTT DOCOMO, supports the strategic direction and operational execution of the company's executive leadership. This position involves facilitating key projects and ensuring seamless communication across various departments, aligning efforts with the company's mission to provide advanced telecommunication services. Ozawa's focus includes enhancing the delivery of wireless internet and LTE telephone networks, contributing to operational improvements. By coordinating critical initiatives, Katsutoshi Ozawa aids in the strategic deployment of NFC infrastructure services and other technological advancements. This executive's role is pivotal in driving forward NTT DOCOMO's objectives and maintaining its competitive stance in the global telecom market.

    Prakash Pd - President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc

    Prakash Pd, the President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc, provides overarching leadership and strategic vision for the entire NTT conglomerate, including NTT DOCOMO. This executive directs corporate strategy, fostering innovation and growth across all subsidiary operations, encompassing telecommunication services, information technology, and beyond. Pd's leadership guides significant investments in advanced technologies such as wireless internet, LTE networks, and NFC infrastructure. By setting the long-term direction and ensuring robust corporate governance, Prakash Pd drives the group's global expansion and market influence. This executive's role is fundamental to maintaining NTT's position as a leader in technological advancement and service provision worldwide.

    Simone Ranucci - President

    Simone Ranucci, the President at NTT DOCOMO, directs the company's strategic vision and operational execution within the telecommunications sector. This leadership role involves overseeing the development and delivery of innovative services, including wireless internet, LTE telephone networks, and NFC infrastructure. Ranucci's focus is on driving market growth and enhancing customer experience across Japan. By fostering a culture of innovation and operational excellence, Simone Ranucci ensures NTT DOCOMO remains at the forefront of technological advancement. This executive's strategic decisions are critical for navigating the competitive landscape and expanding the company's service offerings. The leadership provided by Ranucci is instrumental in achieving NTT DOCOMO's mission of connecting people through advanced communication technologies.

    Dai Sasaki - Chief of Staff

    Dai Sasaki, the Chief of Staff at NTT DOCOMO, coordinates strategic initiatives and operational efficiency across the organization. This position involves facilitating communication between executive leadership and various departments, ensuring alignment with corporate objectives. Sasaki's responsibilities include managing key projects, optimizing internal processes, and supporting the President's office in executing strategic priorities. The role demands a comprehensive understanding of NTT DOCOMO's diverse service portfolio, from NFC infrastructure to advanced telephone networks. By streamlining operations and fostering collaboration, Dai Sasaki enhances the company's ability to deliver innovative telecommunication services. This executive's focus on operational excellence directly contributes to NTT DOCOMO's market leadership and its capacity for rapid adaptation in the evolving tech landscape.
    Tsutomu Abe, the Chief Legal Officer at NTT DOCOMO, provides strategic legal counsel and oversees all legal affairs for the company. This executive ensures compliance with national and international regulations governing telecommunication services, including wireless internet and LTE networks. Abe's responsibilities encompass managing corporate governance, intellectual property, and litigation, safeguarding NTT DOCOMO's interests. The role requires a deep understanding of the legal landscape surrounding NFC infrastructure and data privacy. By providing expert legal guidance, Tsutomu Abe supports the company's operational integrity and risk mitigation strategies. This executive's leadership ensures that NTT DOCOMO conducts its business ethically and legally, maintaining trust with consumers and stakeholders.

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    Frequently Asked Questions Regarding NTT DOCOMO Top Executives and Leadership Team

    Who leads NTT DOCOMO?
    NTT DOCOMO is led by Anna Karen (Chief Financial Officer), along with executives such as Hirotaka Sato (Executive Vice President & Chief Financial Officer) and Tsubouchi Kazuto (Managing Director, Chief Financial Officer).
    Who is part of NTT DOCOMO’s executive team?
    The executive team of NTT DOCOMO includes leaders such as Anna Karen (Chief Financial Officer), Hirotaka Sato (Executive Vice President & Chief Financial Officer), Tsubouchi Kazuto (Managing Director, Chief Financial Officer) and other senior executives.
    How many executives does NTT DOCOMO have?
    NTT DOCOMO has 8 executives leading key business areas.
    What roles are included in NTT DOCOMO’s leadership team?
    The leadership team of NTT DOCOMO includes roles such as Chief Financial Officer, Executive Vice President & Chief Financial Officer, Managing Director, Chief Financial Officer, President's Office, President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc.