IdealJapan Co., Ltd. is an internet advertising agency and consulting firm based in Takanawa, the historic gateway to Edo. Guided by our mission, “Bring beauty to the world,” we strive to help Japan once again become a nation that leads the world.
イデアルジャパン株式会社は江戸の玄関口・高輪に居を構えるインターネット広告代理店・コンサルティング会社です。「美しいものを世界に届ける」をミッションに掲げ、日本を再び世界を牽引する国になることを目指しています。
Works
Japan inbound digital advertising
With our proprietary AI ad-optimization system, we deliver industry-leading cost efficiency. We are a Japan-focused advertising and marketing agency.We provide Japan inbound services for overseas clients, including travel and on-the-ground arrangements in Japan, as well as local advertising and marketing support for the Japanese market.
Japan domestic AI development
We deploy the AI agents we’ve built for internal use—covering legal support, executive/management meetings, ad operations, and ad creative production—for companies that want to implement them.
Japan needs to develop truly homegrown AI—rather than relying on overseas AI such as ChatGPT, Gemini, or Claude—in order to become a stronger country that can thrive and play an active role on the world stage in the future.
Management Comsulting
We provide a critical business-improvement methodology built on the internet advertising expertise we have cultivated and the latest AI technologies, contributing most directly to our clients’ profits.
Vision
We create a world where each person can realize their ideals.
一人ひとりの理想が実現する日本を創る
Mission
We bring beauty to the world.
美しいものを世界に届ける
Values
collective genius
the presence of beauty
honor spirituality
the power to surrender
dedication
enthusiasm
Please feel free to contact us for inquiries or a quote.
CEO
Shoya Nagata
永田祥也
Studied medical AI at Nagoya University Graduate School.
Developed deep-learning methods for time-series data analysis.
Founded idealjapan upon graduation.
Applied IT and AI expertise to advertising and marketing,
establishing a fully performance-based (success-fee) model.
Achieved strong advertising results, especially in healthcare and medical fields.
Gained attention for an AI × marketing approach that integrates advanced optimization with practical growth strategies.
idealjapan Co., Ltd.
Takanawa office
〒108-0074
Tokyo-to Minato-ku Takanawa 1-chōme 20-13