Hakuhodo DY Holdings

Japanese advertising and marketing holding company listed on the Tokyo Stock Exchange (TSE: 2433). Formed October 1, 2003 through the integration of Hakuhodo, Daiko Advertising, and Yomiko Advertising — the first major Japanese ad-agency holdco integration, aimed at challenging Dentsu's dominance. The "DY" = Daiko + Yomiko. Japan's #2 advertising organization with FY2025 (year ended Mar 31 2025) consolidated revenue of ¥953.3 billion and 29,386 employees across 453 subsidiaries in 30+ countries. Headquartered in Akasaka, Minato, Tokyo. Sources: Wikipedia + HDYH official integrated-report PDF + Statista.