Dentsu Inc.
RebrandedTokyo, Japan · Founded 1901
10001+ employees · 4324
Sourced & current · updated Oct 26, 2026Website
Dentsu Inc., now operating as Dentsu Group Inc., was a Japanese international advertising and public relations company headquartered in Tokyo, which reorganized into a holding company structure effective January 1, 2020.
Where they sit
Stack tier: Core Platforms (S)
Customer Data PlatformMarketing AnalyticsMarketing Agency
Historically the largest advertising agency in Japan and one of the top five globally, commanding approximately 28% of Japan's national advertising budget and operating internationally through Dentsu Group Inc.
Ownership
Parent: Dentsu Group Inc.