Yoichiro is the founder of Wisteria House Tokyo, a public affairs consulting firm in Tokyo, established in 2022. He is a seasoned expert in public affairs, government relations, strategic communications, and stakeholder engagement. He currently advises corporate clients and entrepreneurs on navigating complex policy, regulatory, and geopolitical environments.

Yoichiro was a founding member of Brunswick’s Tokyo office, providing strategic counsel to Japanese and global business leaders, helping bridge Japanese and international stakeholders. Prior to that, he worked at Goldman Sachs Japan, where he supported financial transactions and delivered geopolitical insights on Asia-Pacific affairs to institutional investors.

In the Government of Japan, he served as Special Assistant for Foreign Affairs to Prime Minister Shinzo Abe at the Prime Minister’s Office. During this time, he was involved in key national security initiatives, including the establishment of Japan’s National Security Council and the passage of landmark Peace and Security Legislation. He accompanied the Prime Minister on numerous overseas visits to strengthen diplomatic ties across several dozen countries, including the historic 2015 address to the Joint Meeting of the United States Congress, where Prime Minister Abe became the first Japanese leader to deliver such a speech.

At the Ministry of Foreign Affairs of Japan, he held a diplomatic posting in Islamabad, led negotiations for the Japan-EU Economic Partnership Agreement (EPA), and advanced public–private partnerships supporting Japanese businesses overseas.

Drawing on these experiences, he remains committed to supporting business leaders in Japan and international firms through tailored strategic guidance—particularly in the fields of defense, energy, finance, culture, and emerging technologies such as drones and Bitcoin.

Yoichiro holds a Master of International Affairs from Columbia University’s School of International and Public Affairs (SIPA). He earned a Bachelor of Arts in Political Science from the University of Tokyo and a Bachelor of Laws from Waseda University.