Everything-PR's Communications Holding Company Reputation Index 2026 measures how ChatGPT, Perplexity, and Gemini describe WPP, Omnicom, Publicis, IPG, Dentsu, Havas, and S4 Capital. Omnicom owns scale. Publicis owns reputation.
Dentsu Group CEO Hiroshi Igarashi earned 268 million yen (about $1.8 million) in fiscal 2024, far below Western holding-company CEOs, per Dentsu's filing.
Dentsu Group is a Tokyo-based global communications holding company founded in 1901, led by CEO Hiroshi Igarashi, with Carat, Merkle and Dentsu Creative.
Internet advertising passed half of Japan's total ad spend for the first time in 2025. See which agencies, from Dentsu to CyberAgent, are built for that shift.
