Charles Birnbaum

Charles Birnbaum

Board Director

Charles joined Bessemer in 2013 and is a Senior Associate in the New York office. He focuses on investments in the mobile and communications, financial services, and consumer web sectors. Prior to joining Bessemer, Charles spent three years at Foursquare, a location-based mobile application company based in New York City. As an early member of the Foursquare team, he helped create and bring to market some of Foursquare's first merchant-facing tools. He then became Director of Mobile & International Business Development focusing on carrier, OEM, and strategic partnerships and led the company's business development efforts in key growth markets such as Brazil, Russia, and Turkey. Prior to Foursquare, Charles spent six years in investment banking and equity capital markets where he focused on the technology, media, and telecom sectors and executed more than 50 equity and equity-linked public offerings. Charles holds an MBA from the Wharton School, an MA in international studies from the Joseph H. Lauder Institute for Management and International Studies at the University of Pennsylvania, and a BA in history from Northwestern University.