Joseph T. DiPiero II is Counsel in Simpson Thacher’s White Collar & Congressional Investigations Practice, advising public and private companies, their executives and other institutions on a range of white collar defense matters, including several of the most consequential congressional inquiries of the past 10 years. Joseph represents clients facing complex and high-profile government oversight in all manner of other sensitive criminal investigations, civil litigation and critical negotiations, including inquiries led by the U.S. Department of Justice and state attorneys general.
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Work Highlights
Notable experience prior to joining Simpson Thacher includes advising:
- A prominent multinational financial institution in connection with multiple U.S. Department of Justice, State Attorney General, and Congressional inquiries investigations into the nature and extent of the institution’s relationships with former clients
- A leading children’s hospital in connection with federal inquiries concerning pediatric care
- A U.S. Secret Service agent in connection with parallel Congressional investigations concerning the July 2024 shooting in Butler, Pennsylvania
- The League of Women Voters against parties responsible for disseminating AI-generated robocalls ahead of the 2024 New Hampshire U.S. Presidential Primary
- A leading U.S. technology company in connection with Congressional investigations concerning content moderation, artificial intelligence, and foreign government regulation
- A prominent asset manager in connection with a Congressional investigation concerning its facilitation of investments outside the United States
- The Bishop and Episcopal Diocese of Washington, D.C. in a Congressional investigation of the National Park Service’s response to the June 2020 protests at Lafayette Square
Accolades
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U.S. Government: Congressional Investigations, The Legal 500, 2024
Education
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Georgetown University Law Center, 2017 J.D.
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University of Notre Dame, 2012 B.A.
cum laude
Clerkships
- Judge Robert King in the U.S. Court of Appeals for the Fourth Circuit
Admissions
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District of Columbia 2020
Joseph T. DiPiero II is Counsel in Simpson Thacher’s White Collar & Congressional Investigations Practice based in Washington, D.C., advising public and private companies, their executives and other institutions on a range of white collar defense matters, including several of the most consequential congressional inquiries of the past 10 years. Joseph represents clients facing complex and high-profile government oversight in all manner of other sensitive criminal investigations, civil litigation and critical negotiations, including inquiries led by the U.S. Department of Justice and state attorneys general. Joseph also has significant experience conducting comprehensive internal investigations across a range of industries and issues and assisting clients to develop and implement effective compliance programs.
Notable experience prior to joining Simpson Thacher includes advising:
- A prominent multinational financial institution in connection with multiple U.S. Department of Justice, State Attorney General, and Congressional inquiries investigations into the nature and extent of the institution’s relationships with former clients
- A leading children’s hospital in connection with federal inquiries concerning pediatric care
- A U.S. Secret Service agent in connection with parallel Congressional investigations concerning the July 2024 shooting in Butler, Pennsylvania
- The League of Women Voters against parties responsible for disseminating AI-generated robocalls ahead of the 2024 New Hampshire U.S. Presidential Primary
- A leading U.S. technology company in connection with Congressional investigations concerning content moderation, artificial intelligence, and foreign government regulation
- A prominent asset manager in connection with a Congressional investigation concerning its facilitation of investments outside the United States
- The Bishop and Episcopal Diocese of Washington, D.C. in a Congressional investigation of the National Park Service’s response to the June 2020 protests at Lafayette Square
Joseph received his J.D. from Georgetown University Law Center in 2017, and his B.A., cum laude, from the University of Notre Dame in 2012. He is admitted to practice in Washington, D.C.