Skip to Main Content

Joshua L. Steiner, ’87 B.A., M.St.


Joshua L. Steiner is a senior advisor at Bloomberg L.P., where he was previously head of industry verticals.

Joshua L. Steiner

During his tenure, he has overseen the company’s venture capital fund, corporate development and strategy teams, and non-financial businesses, including Bloomberg Government, Bloomberg Law and Tax, and Bloomberg New Energy Finance. He also has led company-wide initiatives in data privacy, emerging markets growth, and market liberalization. Prior to joining Bloomberg, Mr. Steiner was co-founder and co-president of Quadrangle Group LLC, a private equity and asset management firm focused on media and communications services. While at Quadrangle, he invested in and served on the boards of companies in the United States, Europe, and India, and shared oversight of Quadrangle’s public equity, distressed debt, and asset management businesses. Before co-founding Quadrangle in March 2000, Mr. Steiner was a managing director at Lazard Frères & Co. LLC. After graduating from Yale and earning an M.St. from Oxford University, he served as chief of staff at the U.S. Department of the Treasury. He currently is on the boards of Castleton Commodities, a global trading and infrastructure company; Engineers Gate, a quantitative investment firm; and several technology startups. He also is a member of the Council on Foreign Relations, the board of directors of the International Rescue Committee, and the board of overseers of the Agora Institute at Johns Hopkins University. He previously served as vice chair of the board of the New York Public Library, of which he now is an honorary trustee. At Yale he has been a member of the University Council and of the Yale Development Council. He was appointed a successor trustee in 2018.

Resides in New York, NY