Company's commitment
Mission
on how to move forward
Vision
more prosperous Japan and make a positive impact on the world
Core Value
we contribute to the growth and prosperity of Japan
as a leading Japanese firm
Our Strength
International achievements
we offer grounded analysis and visionary guidance
Our president has traveled extensively to Asia, North and South America,
Europe, the Middle East, and Africa,
fostering relationships with stakeholders in each region
CEO Perspective
our president has worked on projects
for prime ministers, ministers, and ambassadors
We have a proven track record of empowering leaders
such as CEOs, Japan branch managers,
and entrepreneurs in the private sector
Based on these credentials
we provide advice from the leadership perspectives
Strategy & Execution
from strategy development to execution
We offer strategic guidance to help you achieve your business goals,
including advice on identifying key stakeholders
and fostering effective collaborations
Welcome address
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As a public affairs consultancy, we specialize in helping clients create new markets, expand their businesses, and make a positive social impact. We achieve this by engaging with and influencing key stakeholders such as government, industry associations, media, and investors. With the rapid pace of technological advancements, globalization, and the democratization of information in the 21st century, businesses operating in competitive markets are finding it increasingly necessary to address social agendas and engage with a wide range of stakeholders.
We help businesses navigate complex environments by defining their vision, prioritizing challenges, and delivering unique value propositions. To achieve sustained growth and a lasting social impact, fostering engagement with key stakeholders, including government, investors, and customers is the key. In today’s rapidly changing world, our firm empower companies to build a more sustainable future by providing strategic advice and support.
The name “Wisteria” pays homage to a cherished Japanese flower, embodying the concept of togetherness. Rooted in Japanese culture, we offer tailored consulting services, providing our clients with the support they need to succeed.
Japan, as one of the world’s oldest nations, is home to some of the world’s longest-standing companies. We believe that Japanese society and businesses continue to possess immense potential to contribute to solving the various challenges facing the international soceity. As a Japanese professional consultant, I am committed to supporting the growth of Japanese companies and the further enrichment of Japanese society, enabling us to continue making positive contributions to the international community.
President, Yoichiro Sato

Professional Career
Ministry of Foreign Affairs of Japan (2005-2016)
Participated in World Trade Organization(WTO) negotiations and Economic Partnership Agreement(EPA) negotiations with the European Union. Served as a diplomat in Islamabad, Pakistan. Promoted public-private partnerships.
Prime Minister’s Office of Japan (2013-2015)
Seconded to the Prime Minister’s Office as a special assistant on foreign and international security affairs during the second Shinzo Abe administration. Worked on the establishment of the National Security Council, the Peace and Security Legislation, the Prime Minister’s visits of foreign countries as well as summit meetings.
Goldman Sachs (2016-2018)
Provided strategic guidance on regulatory issues and political trends across the Asia Pacific region as the Vice President of Government Affairs in the Executive Office.
Brunswick Group (2018-2024)
As the first on-the-ground member in Tokyo, led the establishment of the Japan office and advised Japanese and international clients on M&A, shareholder activism defense, media relations, and geopolitical risk management as a Partner/Senior Consultant.
Wisteria House Tokyo (2022-Present)
Advise Japanese, international, and startup companies on public affairs, public-private partnerships, reputation management, media relations, and geopolitical risk.