Dentsu Japan Executive and Leadership Team

Sei Matsumoto, the Chief Executive Officer at Dentsu Japan, directs the overarching strategic vision for the entire organization. Matsumoto oversees the integration of traditional advertising with modern digital capabilities to ensure the firm maintains a competitive edge in the global market. By aligning creative development with data-driven insights, the Chief Executive Officer fosters an environment where complex business challenges receive holistic solutions. This leadership role involves constant collaboration with the Board to refine long-term growth objectives and expand the company's influence across diverse industries. Sei Matsumoto ensures that every campaign reflects the core mission of building lasting connections between brands and stakeholders. Through rigorous oversight of management consulting and public relations offerings, the Chief Executive Officer secures the firm's position as a leader in comprehensive communication services, ultimately driving measurable results for clients worldwide.

Wisarn Sirijantanon, the Chief Executive Officer, Dentsu Media & Carat (Thailand) at Dentsu Japan, manages all media execution and advertising initiatives within the Thai market. Sirijantanon architects sophisticated media strategies that leverage consumer insights to maximize brand visibility and engagement. Overseeing the daily operations of both Dentsu Media and Carat, the Chief Executive Officer, Dentsu Media & Carat (Thailand) ensures that all creative storytelling aligns with the specific needs of local and regional clients. This role requires constant coordination with cross-functional teams to optimize media spend and improve campaign performance metrics. By focusing on digital transformation and innovative advertising techniques, Wisarn Sirijantanon strengthens the firm's market presence in Southeast Asia. The Chief Executive Officer, Dentsu Media & Carat (Thailand) consistently delivers high-impact solutions that help organizations navigate competitive landscapes while maintaining a strong connection with target audiences.

Apirada Benchakaranee, the Chief Executive Officer, Customer Experience Management & Md, Merkle (Cxm, Thailand) at Dentsu Japan, leads the expansion of customer experience initiatives across the Thai market. Benchakaranee directs the integration of data analytics and creative storytelling to enhance how brands interact with consumers. Overseeing the Merkle operations, the Chief Executive Officer, Customer Experience Management & Md, Merkle (Cxm, Thailand) ensures that all digital touchpoints provide measurable value and drive long-term loyalty. This leadership position involves aligning technical capabilities with strategic business goals to solve complex engagement challenges. By focusing on the intersection of technology and marketing, Apirada Benchakaranee optimizes the customer journey for diverse clients. The Chief Executive Officer, Customer Experience Management & Md, Merkle (Cxm, Thailand) maintains a sharp focus on delivering innovative solutions that strengthen market positioning and foster sustainable growth through superior customer experience management.

Elvira Jakub, the Chief Executive Officer (Indonesia) at Dentsu Japan, manages all advertising and public relations operations within the Indonesian market. Jakub directs the implementation of integrated communication solutions tailored to the unique demands of the local business landscape. Overseeing regional growth strategies, the Chief Executive Officer (Indonesia) ensures that the firm delivers consistent value through creative development and media execution. This role involves building strong relationships with key stakeholders and navigating the complexities of the competitive advertising sector. By leveraging data analytics and consumer insights, Elvira Jakub crafts campaigns that resonate deeply with target audiences. The Chief Executive Officer (Indonesia) maintains a focus on operational excellence and strategic alignment, ensuring that the company's broader mission of driving meaningful business outcomes remains central to all activities conducted throughout the Indonesian region.

Taku Ozaki, the CEO/代表取締役社長 Taiwan Dentsu Inc. at Dentsu Japan, leads all business activities and strategic initiatives within the Taiwan market. Ozaki directs the firm's efforts in providing comprehensive advertising and public relations services to a diverse client base. Overseeing the local management team, the CEO/代表取締役社長 Taiwan Dentsu Inc. ensures that all creative and media strategies align with the company's global standards for excellence. This leadership role involves identifying new market opportunities and strengthening existing client partnerships through thoughtful strategy and execution. By focusing on digital capabilities and traditional advertising expertise, Taku Ozaki drives significant growth and market impact. The CEO/代表取締役社長 Taiwan Dentsu Inc. consistently promotes a culture of innovation, ensuring that the firm remains a trusted partner for organizations seeking to build lasting connections with stakeholders across the Taiwanese landscape.

Dawn Rowlands, the Chief Executive Officer Sub-Saharan Africa at Dentsu Japan, manages the firm's extensive operations across the Sub-Saharan African region. Rowlands directs the development of integrated communication solutions that address the specific needs of diverse industries within this growing market. Overseeing regional strategy and media execution, the Chief Executive Officer Sub-Saharan Africa ensures that all campaigns leverage data analytics to deliver measurable results. This role involves navigating complex market dynamics and fostering collaboration between creative teams and business consultants. By focusing on brand positioning and stakeholder engagement, Dawn Rowlands strengthens the company's presence and influence throughout the continent. The Chief Executive Officer Sub-Saharan Africa maintains a commitment to driving meaningful business outcomes, ensuring that the firm's services effectively support clients in building lasting connections with their target audiences in a rapidly evolving economic environment.

Yuichi Toyoda, the Chief Executive Officer, Dentsu (APAC) at Dentsu Japan, oversees all advertising and public relations operations across the Asia-Pacific region. Toyoda directs the strategic alignment of regional business units to ensure consistent delivery of integrated communication solutions. By managing large-scale media execution and creative development, the Chief Executive Officer, Dentsu (APAC) drives growth and operational efficiency across diverse markets. This leadership role involves coordinating with local CEOs to implement global strategies while respecting regional nuances. Yuichi Toyoda focuses on leveraging data analytics and consumer insights to craft campaigns that resonate with audiences throughout the APAC region. The Chief Executive Officer, Dentsu (APAC) ensures that the firm remains a leader in the advertising sector, consistently delivering measurable results and helping organizations navigate competitive landscapes through thoughtful strategy and execution.

James Millen, the Chief Financial Officer at Dentsu Japan, directs all financial planning, reporting, and fiscal strategy for the organization. Millen oversees the allocation of resources to support the firm's integrated communication solutions and business consulting services. By managing the company's financial health, the Chief Financial Officer ensures that the firm maintains the necessary capital to invest in digital capabilities and creative development. This role involves collaborating with the Board to establish long-term financial goals and monitoring performance metrics across all global regions. James Millen focuses on driving fiscal efficiency and transparency, which allows the company to navigate competitive landscapes with stability. The Chief Financial Officer consistently provides the financial insights required to support strategic decision-making, ensuring that the firm remains well-positioned to deliver measurable results and build lasting connections with stakeholders through thoughtful investment and execution.

Takamichi Yoshida, the Chief Operating Officer at Dentsu Japan, directs the internal operational infrastructure and service delivery processes. Yoshida oversees the integration of traditional advertising expertise with modern digital capabilities to ensure seamless execution across all client projects. By managing the firm's operational workflows, the Chief Operating Officer improves efficiency and supports the delivery of comprehensive communication solutions. This role involves coordinating with various departments to ensure that creative development and media execution align with the company's strategic objectives. Takamichi Yoshida focuses on scaling internal capabilities to meet the evolving needs of clients across diverse industries. The Chief Operating Officer maintains a commitment to operational excellence, ensuring that the firm consistently delivers measurable business outcomes and builds lasting connections with stakeholders through robust, scalable, and highly effective internal management practices.

Yasutoshi Sumida, the Managing Director at Dentsu Japan, oversees the daily operational management and strategic execution of key business units. Sumida directs the implementation of integrated communication solutions, ensuring that creative development and media execution meet the highest standards of quality. By managing internal resources and fostering collaboration across departments, the Managing Director supports the firm's commitment to delivering measurable business outcomes. This role involves working closely with other C-suite leaders to refine operational processes and improve service delivery for a diverse client base. Yasutoshi Sumida focuses on optimizing the firm's advertising and public relations offerings to address complex business challenges effectively. The Managing Director maintains a strong emphasis on efficiency and strategic growth, ensuring that the organization continues to build lasting connections with stakeholders while navigating the competitive landscape of the modern marketing industry.