Marshall Sonenshine
Managing PartnerFounder
Marshall Sonenshine is Managing Partner and Founder of Sonenshine Partners. Prior to Founding Sonenshine Partners, Mr. Sonenshine was the head of Media and Aerospace M&A at BT Wolfensohn (the M&A division of Bankers Trust) and its successor, Deutsche Bank, where he was asked to serve as the Co-Head of global M&A. Prior to Bankers Trust, Mr. Sonenshine was one of nine partners at Wolfensohn & Company, a boutique investment bank whose partners included former Federal Reserve Chair Paul Volcker and former World Bank President James Wolfensohn. Mr. Sonenshine was part of the leadership team that sold Wolfensohn & Co. to Bankers Trust and that would oversee M&A at Bankers Trust, Alex Brown and ultimately Deutsche Bank. For the past 30 years, Mr. Sonenshine has counseled hundreds of corporations globally on complex mergers, restructuring and strategic issues. He is a veteran adviser on countless flagship deals globally over the past quarter century involving companies as diverse as AIG, Bankers Trust, 1-800 Contacts, Dassault Systemes, Disney, Essilor, General Electric, International Lease Finance Corporation, KKR, Luxottica SpA, Madison Dearborn, The New York Times, Nokia Siemens, Proquest, Siemens, Sony, United States Shoe Corporation, Walgreens, and Wellpoint.
EDUCATIONMr. Sonenshine holds a BA magna cum laude from Brown University where he was elected to Phi Beta Kappa, and a JD from Harvard Law School, where he served as an Editor of the Harvard Law Review. He studied at L’Institut d’Etudes Politiques and The Sorbonne in Paris and, served as Teaching Fellow in International Relations at Harvard University’s Government Department, Instructor in Legal Writing and in the International Tax Program at Harvard Law School.
other Mr. Sonenshine is a Lecturer on Law at Harvard Law School where he teaches Advanced Corporate Transactions. He is formerly Professor of Finance and Economics at Columbia University Business School where he taught Private Equity. He has long been a frequent commentator on global business and finance issues at Bloomberg Television, CNBC, New York Times, Financial Times, and other major financial media. Mr. Sonenshine is a Trustee of Hunter College of the City University of New York where he is Chairman of the Endowment. He has is the former Chairman of the Harvard Law School Fund and of the Mass General / Harvard Center for Law Brain and Behavior, and has held leadership positions on the boards of Jazz at Lincoln Center, International Center of Photography, and numerous other organizations. Mr. Sonenshine is Chairman of New York publisher RosettaBooks and has served as Executive Producer of HBO’s Emmy award winning The Loving Story and Emmy nominated The Diplomat. He is a lifelong member of the Council on Foreign Relations. He and his wife have three sons and live in New York.
