Jonathan Wittenberg joined the Guttmacher Institute in 2005. As Executive Vice President, Mr. Wittenberg serves as a key advisor to the CEO, plays a leadership role in aligning the Institute’s strategy and operations, and helps to ensure cross-divisional collaboration and integration. Prior to becoming Executive Vice President in 2019, Mr. Wittenberg led the Institute’s fundraising efforts, first as Director of Development (2007–2013) and then as Vice President for Development (2013–2019). In this capacity, he oversaw a period of major growth in the organization’s funding from private foundations, government agencies and individual donors. From 2018 to 2019, Mr. Wittenberg served as interim CEO.

Prior to joining Guttmacher, he was the Program Associate for International Health Policy at the Commonwealth Fund, where he conducted policy analysis and helped support the Fund’s grantees. In 2003, Mr. Wittenberg worked as a public policy intern for Physicians for Reproductive Health (then known as Physicians for Reproductive Choice and Health). He received a BS in health sciences from James Madison University and an MPH from the Yale School of Public Health. He is a proud member of the board of directors of the Women’s Medical Fund, a Philadelphia-based abortion fund.