As Chief Investment Officer of Acumen Fund, Brian leads the global portfolio team in making and managing our portfolio of $30m+ of investments, leads our work on performance management and metrics, and helps frame the research agenda for our knowledge activities. Before joining Acumen Fund, Brian Trelstad spent four years at McKinsey & Company as a consultant in the healthcare and non-profit practices and as an editor of the McKinsey Quarterly. Prior to McKinsey, he worked as a case writer at Stanford University's Center for Entrepreneurial Studies and advised a number of early-stage technology companies. He was the lead environmental staffer for President Clinton's AmeriCorps program, and co-founded and directed the Center for Environmental Citizenship. Brian holds an MBA from Stanford University, an MA in City Planning from UC-Berkeley, and a BA from Harvard University. He is also a Kauffman Fellow (Class 12).