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Septeni Holdings

Tokyo, Japan · Founded 1990

1001-5000 employees · 4293.T

Sourced & current · updated Oct 24, 20261 of 4 facts verified

Septeni Holdings is a Tokyo-listed digital marketing group and a consolidated subsidiary of dentsu Group since January 2022, running digital and social advertising agency services and dentsu's direct-marketing business in Japan.

Where they sit

Stack tier: Infrastructure & Data (B)

Marketing AgencyPerformance Marketing

Tokyo-listed digital advertising agency group and consolidated subsidiary of dentsu Group since 2022

Ownership

Competitors

Pre-call brief from ATDb — sourced from the live database, current as of Oct 24, 2026. Not a static screenshot.