Joseph B. Frumkin

Sullivan & Cromwell
New York

Practice Area: M&A

    All Star


    “Mr. Frumkin is extremely knowledgeable on business issues.”
    “He consistently delivers high quality work.”


    Joseph Frumkin has provided legal counsel on many of the largest mergers and acquisitions transactions in history, representing buyers, sellers and special committees of independent directors. His practice focuses on U.S. and cross-border acquisitions, leveraged buyouts, corporate preparedness and proxy contests, as well as corporate governance, cybersecurity and general corporate representation. Mr. Frumkin was the managing partner of S&C’s Mergers and Acquisitions Group from 2007 to 2019.

    Mr. Frumkin is consistently recognized as a leading lawyer by widely referenced legal guides, including Chambers, Euromoney, IFLR, The Legal 500 and The International Who’s Who. In 2017, he was named “Dealmaker of the Year” by The American Lawyer for his work on the AT&T-Time Warner transaction and was previously named “Dealmaker of the Year” for his work on the Cingular-AT&T Wireless transaction.

    Mr. Frumkin is currently a fellow at Harvard’s Advanced Leadership Initiative, a program designed to prepare experienced leaders to take on new challenges in the social sector. He also serves as an Adjunct Professor of Law at University of Pennsylvania Law School, where he teaches a course in Mergers and Acquisitions.

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