Ken Shibusawa founded in 2001, Shibusawa and Company, Inc., and in 2008, Commons Asset Management. In 2021, he joined Brunswick Group as senior advisor. In 2023, he founded &Capital, Inc., an impact fund management company for Africa.

He has extensive market experience at JP Morgan, Goldman Sachs, and Moore Capital, a global macro hedge fund, where he was the representative managing director of the Tokyo Office. He is also trustee and co-chairperson of the Global South Africa Committee of Keizai Doyukai (Japan Association of Corporate Executives), and is a member of numerous government committees, including the Council for New Form of Capitalism, established by Prime Minister Kishida. He serves as a member of Asia Advisory Board of Chiratae Ventures, a leading venture capital fund in India investing in tech startups. In addition, he is an advisor to the Office of the President at the University of Tokyo, steering committee member of UNDP SDG Impact, board member of the International Foundation for Valuing Impact, a special advisor to the ISSB (International Sustainability Standards Boards) chair, chairman of GSG (Global Steering Group for Impact Investment) National Advisory Board Japan. And most recently was named as co-head of Triple I (Impact Investment Initiative) for Global Health, an initiative that was endorsed by G7 leadership at the Hiroshima Summit.