NTT DOCOMO Executive and Leadership Team

June, 2026

Leadership Overview

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

Driven by innovation, NTT DOCOMO provides essential telecommunication services, shaping the future of connectivity through wireless internet, advanced LTE networks, and NFC infrastructure, impacting global communication standards.

Leadership Roles at NTT DOCOMO

  • Chief Financial Officer - Anna Karen
  • Chief Financial Officer & Executive Vice President - Hirotaka Sato
  • Managing Director, Chief Financial Officer - Tsubouchi Kazuto
  • President - Simone Ranucci
  • President's Office - Katsutoshi Ozawa
  • President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc - Prakash Pd
  • 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 all financial planning, risk management, and investment strategies. Karen oversees the allocation of capital for expanding wireless internet and LTE telephone networks, ensuring fiscal responsibility. This leadership position involves managing relationships with financial institutions and stakeholders, providing critical insights into the company's financial health. The Chief Financial Officer ensures compliance with all financial regulations and drives initiatives to optimize profitability and shareholder value. Anna Karen's financial acumen supports NTT DOCOMO's growth trajectory by identifying new revenue streams and managing operational costs effectively. This executive role is pivotal in maintaining the financial stability required for sustained innovation in telecommunication services.

    Hirotaka Sato - Chief Financial Officer & Executive Vice President

    Hirotaka Sato, the Chief Financial Officer & Executive Vice President at NTT DOCOMO, spearheads comprehensive financial operations and strategic corporate development. Sato manages the financial architecture supporting the company's extensive telecommunication services, including NFC infrastructure and advanced wireless solutions. This dual role requires overseeing both the fiscal health and the strategic expansion of NTT DOCOMO's market presence. The Chief Financial Officer & Executive Vice President ensures robust financial controls and drives initiatives that enhance operational efficiency and long-term profitability. Hirotaka Sato's leadership is crucial for navigating complex financial landscapes and securing resources for technological advancements. This executive's oversight guarantees that financial strategies align with the company's mission to deliver cutting-edge telecom services.

    Tsubouchi Kazuto - Managing Director, Chief Financial Officer

    Tsubouchi Kazuto, the Managing Director, Chief Financial Officer at NTT DOCOMO, leads the financial strategy and management of the company's global operations. Kazuto is responsible for financial planning, budgeting, and reporting, ensuring the fiscal integrity of services like LTE telephone networks and wireless internet. This position demands a deep understanding of financial markets and risk mitigation strategies to support NTT DOCOMO's sustained growth. The Managing Director, Chief Financial Officer oversees investment portfolios and capital allocation, driving initiatives that maximize financial returns. Tsubouchi Kazuto's financial expertise is instrumental in guiding the company's strategic direction and ensuring operational excellence. This executive's focus on financial performance underpins the company's ability to innovate and expand its service offerings.

    Simone Ranucci - President

    Simone Ranucci, the President at NTT DOCOMO, drives the overall strategic direction and operational execution of the company's telecommunication services. Ranucci oversees the expansion of wireless internet, LTE telephone networks, and NFC infrastructure, ensuring market leadership. This executive role involves fostering innovation and leading cross-functional teams to achieve corporate objectives. The President is responsible for setting the vision and ensuring alignment with the company's mission to provide advanced connectivity solutions. Simone Ranucci's leadership guides NTT DOCOMO's efforts to enhance customer experience and explore new technological frontiers. This position is central to maintaining the company's competitive edge in the global telecom market.

    Katsutoshi Ozawa - President's Office

    Katsutoshi Ozawa, representing the President's Office at NTT DOCOMO, supports the strategic initiatives and operational management directed by the President. Ozawa facilitates communication and coordination between various departments, ensuring the smooth implementation of policies related to wireless internet and LTE telephone networks. This role involves analyzing market trends and contributing to strategic planning for service enhancement and expansion. The President's Office plays a key part in operational efficiency and the effective execution of corporate goals. Katsutoshi Ozawa's involvement ensures that the President's vision is translated into tangible actions across the organization. This function is vital for maintaining the company's momentum in delivering cutting-edge telecommunication services.

    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 direction for the broader NTT conglomerate, including NTT DOCOMO's telecommunication services. Pd guides the group's vision, focusing on innovation in areas such as wireless internet and advanced network infrastructure. This high-level executive role involves setting the strategic course for group-wide initiatives and ensuring synergy across diverse business units. The President and Chairman At NTT Group of Companies. NTT Corporation. NTT Inc is responsible for fostering a culture of technological advancement and market expansion. Prakash Pd's leadership influences the long-term trajectory of NTT's global operations, driving growth and solidifying its position as a leader in the technology and telecommunications sectors.

    Dai Sasaki - Chief of Staff

    Dai Sasaki, the Chief of Staff at NTT DOCOMO, directs strategic initiatives and operational alignment across the organization. Sasaki manages key projects that enhance the company's service offerings, including wireless internet and LTE telephone networks. This role involves close collaboration with other senior leaders to ensure efficient execution of corporate objectives. Overseeing critical internal processes, Sasaki drives improvements in service delivery and operational efficiency. The Chief of Staff ensures that the company's strategic vision translates into actionable plans, supporting NTT DOCOMO's mission to provide advanced telecommunication services. Dai Sasaki's leadership ensures seamless integration of new technologies and services into the existing infrastructure, reinforcing the company's market position.
    Tsutomu Abe, the Chief Legal Officer at NTT DOCOMO, directs all legal affairs and ensures regulatory compliance across the company's operations. Abe oversees the legal framework supporting the provision of telecommunication services, including wireless internet and NFC infrastructure, safeguarding the company's interests. This critical role involves managing corporate governance, intellectual property, and litigation. The Chief Legal Officer advises senior management on legal implications of business decisions and strategic initiatives. Tsutomu Abe's legal guidance is essential for navigating the complex regulatory environment of the telecom industry. This executive ensures that all business practices adhere to legal standards, protecting NTT DOCOMO's reputation and operational continuity.

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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 (Chief Financial Officer & Executive Vice President) 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 (Chief Financial Officer & Executive Vice President), 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, Chief Financial Officer & Executive Vice President, Managing Director, Chief Financial Officer, President, President's Office.