William Rosenzweig

William Rosenzweig, Managing Partner

William Rosenzweig is Managing Partner at Physic Ventures. He supports early-stage ventures in the areas of entrepreneurial leadership, business design, brand strategy and consumer marketing and works closely with the Fund’s portfolio companies GazellePharmacaRecyclebankRevolution Foods, and Yummly

Will has spent more than twenty years integrating the practices and perspectives of an entrepreneur, venture investor and educator. He is regarded as an expert in cultivating and transforming impactful ideas into thriving enterprises. 

As an entrepreneur, Will has been involved as a founder and executive of more than a dozen early-stage ventures. Will was founding CEO (and Minister of Progress) of The Republic of Tea, an award-winning specialty tea company that is credited with creating the premium tea category in the United States. He has been involved in growing the healthy food and nutrition field through his work as an entrepreneur and investor at Odwalla, Stonyfield Farms, Trinity Springs and Brand New Brands, a functional food incubator he founded in 2003.

In November 2014, Will joined forces with The Culinary Institute of America (CIA) to launch The Food Business School (FBS), the CIA’s new center for executive and graduate education. As dean and executive director of The Food Business School, Will is working with industry experts to create specialized programs that enable and empower entrepreneurs to design, deliver, and lead transformative innovations that address the world’s most pressing food challenges—and its greatest business opportunities.

In 2010, Will was honored with the Oslo Business for Peace Award, presented jointly by the Business for Peace Foundation and International Chamber of Commerce in Oslo, Norway. The award represents "the highest distinction given to a businessperson for outstanding accomplishments in the area of ethical business." Will was the only American selected among seven global honorees by a committee of Nobel Laureates including Professor Muhammad Yunus and Professor Michael Spence.  

In 2013, Will was named Chairman of the Vitality Institute Commission on the Promotion of Health and the Prevention of Chronic Disease.

Since 1999, Will has served on the faculty of the Haas School of Business at University of California, Berkeley, where he initiated and taught the first MBA courses in Social Entrepreneurship and Social Venture Development. Students in his classes produced noteworthy ventures including Revolution Foods, World of Good, Indiegogo and Good Guide.  Will continues to serves as Chairman of the advisory board to the Global Social Venture Competition. He has been a Price Kauffman Fellow and a visiting faculty member at London Business School.  

From 2000-2004, Will was also a team member for the Rockefeller Foundation's ProVenEx Fund, the first Foundation sponsored “impact” investment vehicle seeking "double bottom line returns" in for-profit businesses. He was the co-project director and co-author of the Foundation’s initial research on Impact Assessment and Measurement.

Will co-authored the bestselling book The Republic of Tea: How an Idea Becomes a Business (Doubleday 1992, 1994), which was named one of the 100 best business books of all time.  He serves on advisory boards for The Culinary Institute of America, a Gates Foundation funded project on Sanitation, and SustainAbility, a London-based think tank. Recently, Will was named on the Purpose Economy 100 list of leaders who are “the first to research, develop, and shape markets that foster community, expression, and impact.”

Will is an avid gardener and writes about how gardening inspires creativity, innovation and entrepreneurship at www.ideagarden.com.