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Louis Boorstin

Managing Director, Osprey Foundation


Louis is Managing Director of the Osprey Foundation, where he leads programs on water, sanitation and hygiene (WASH) and sustainable energy. In addition to managing a portfolio of grants and impact investments, Louis works to advance these sectors through wide-scale systems change.

From 2005-2013, Louis founded and led the WASH program at the Bill & Melinda Gates Foundation, building a portfolio of more than US$ 400 million, assembling a cross-disciplinary team, and focusing the program on non-piped sanitation.

Prior to that, he worked for 15 years at the International Finance Corporation of the World Bank Group, where he led the environmental finance team from 1997 to 2004. In that capacity, he helped pioneer the impact investing field by building a portfolio of over 30 ventures, ranging from solar power to clean drinking water, totaling US$ 250 million.

Louis currently sits on the boards of IRC International Water and Sanitation Centre, the RICE Institute and Sanergy and serves as a senior adviser to several other social ventures and non-profits. He holds a BA in economics from Yale University and an MBA and MA (Development Economics) from Stanford University.