Dentsu Group Inc.
Tokyo, Japan · Founded 1901
10001+ employees · 4324.T
Sourced & current · updated Oct 26, 2026Website
Dentsu Group Inc. is a Japanese international advertising and public relations holding company headquartered in Tokyo, recognized as the largest advertising agency in Japan and the fifth largest agency network in the world by revenue.
Where they sit
Stack tier: Core Platforms (S)
Customer Data PlatformMarketing Technology
Largest advertising agency in Japan and fifth largest agency network globally by revenue, competing with WPP, Publicis, Omnicom, and Interpublic Group, while also challenging management consultancies in marketing transformation services
Ownership
Subsidiaries