Hiro Mizuno

Hiro Mizuno is a globally recognized financial executive and advocate for sustainable investment. As the Founder and CEO of Good Steward Partners, LLC, Hiro continues to champion responsible financial practices and long-term value creation. He currently serves as Special Advisor to the CEO of MSCI Inc., and Senior Adviser of TNFD, an Independent Board Member of LiveWire Group Inc., and a Mission Committee Member at Danone S.A.
Previously, Hiro held the role of Special Envoy of the United Nations Secretary-General on Innovative Finance and Sustainable Investment and the former Non-Executive Board Member of Tesla, Inc., and the former Special Advisor to Minister of Economy, Trade and Industry of JapanAs Executive Managing Director and Chief Investment Officer of Japan’s Government Pension Investment Fund (GPIF), he managed the world’s largest pension fund with $1.5 trillion in assets, where he redefined global investment strategies by embedding Environmental, Social, and Governance (ESG) principles. His tenure as a Non-Executive Board Member of Tesla further highlighted his commitment to renewable energy and innovation.
Hiro’s career spans leadership roles in private equity and banking, including as a partner at Coller Capital in London and earlier roles with Sumitomo Trust & Banking Co., Ltd., where he worked in Japan, Silicon Valley, and New York.
In addition to his professional endeavors, Hiro is deeply engaged in global initiatives that advance sustainable finance. He collaborates with leading organizations to address climate, biodiversity, and financial innovation challenges. His dedication to these causes is matched by his contributions to academia. Hiro serves as an Executive Fellow at Harvard Business School, an Executive in Residence at Oxford University’s Saïd Business School, a Visiting Fellow at Cambridge Judge Business School, and a Senior Fellow at Northwestern University’s Kellogg School of Management. He is also a Guest Professor at Osaka University Graduate School of Medicine.