Jon Hornstein

Managing Director, The Harry and Jeanette Weinberg Foundation

Jon Hornstein advances the Weinberg Foundation’s nationally focused grantmaking to fight poverty and build strong communities in the US. He oversees more than $30mil in grants; foster the well-being of seniors; support innovative approaches to safe/ affordable housing; and strengthen connections between national and local efforts, including national networks that support our community partners.  

Since joining the Foundation in 2017, Hornstein has spearheaded the development of the Foundation’s U.S. Jewish grantmaking, which primarily focuses on addressing Jewish poverty, in addition to strengthening Jewish nonprofits and combatting antisemitism. Jon led the establishment of Together Ending Need and authored Jewish Poverty in the United States: A Summary of Recent Research in 2019.  

In 2026, Hornstein received the J.J. Greenberg Memorial Award, which honors foundation professionals who have demonstrated extraordinary leadership in Jewish philanthropy. He has served as a Wexner Field fellow, a Baltimore Corps fellow, and an Education Pioneers fellow.