Martal Group:B2B Lead Generation and Sales Blog

05.12.2026

15 Top Marketing Agencies in Japan for 2026, Organized by B2B Use Case

Introduction Japan’s digital ad market just crossed a structural threshold. In its 2025 Japan Advertising Expenditures report, Dentsu reported that internet advertising reached ¥4.05 trillion in 2025 — 50.2% of Japan’s ¥8.06 trillion total ad spend (1), the first time digital has exceeded half. Total digital ad spend is on track to hit US$64.88 billion […]