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Hiroshi Igarashi

Operator

Hiroshi Igarashi is Executive Senior Advisor at Dentsu Group Inc. He served as the company's President and Global CEO from 2020 until March 2026, when he was succeeded by Takeshi Sano — capping a career of more than 40 years at the Japanese advertising and media holding company.

Last updated May 31, 2026 by the ATDb Editorial Team · Connections updated Oct 6, 2026

Role
Executive Senior Advisor
Company
Dentsu Group Inc.
Based
Tokyo, Japan
Boards
1
Connections
3

AI-drafted from public sources5 sources cited

Years in industry
30 years

Bio

Hiroshi Igarashi is Executive Senior Advisor at Dentsu Group Inc. He served as the company's President and Global CEO from 2020 until March 2026, when he was succeeded by Takeshi Sano — capping a career of more than 40 years at the Japanese advertising and media holding company.

Career

Roles with a cited source. All linked roles are in the Roles tab.

Expertise & education

Expertise

Integrated Marketing ServicesDigital TransformationCustomer Experience Management (CXM)Data-Driven MarketingMarketing TechnologyPerformance MarketingOrganizational TransformationGlobal Advertising Operations

Education

  • Degree details not publicly confirmed, Keio University (commonly cited but unverified)

Speaking topics

The future of integrated marketing servicesDigital transformation in advertising holding companiesCustomer experience management and data-driven marketingOrganizational transformation and the 'One Dentsu' model

Recognition

Notable achievements

  • Led the launch and execution of the 'One Dentsu' strategy, consolidating Dentsu's global operating model to improve client service and operational efficiency
  • Oversaw Dentsu Group's structural transformation including significant workforce restructuring and investment reallocation toward high-growth digital and technology services
  • Guided Dentsu through a critical post-pandemic recovery and repositioning period, stabilizing the group's financial performance while accelerating its shift toward customer transformation services
Connection details