Peter Neiman is a partner in the firm's Litigation/Controversy Department, and a member of the White Collar Defense and Investigations Practice. He joined the firm in 2006. Prior to joining the firm, Mr. Neiman spent nine years as an Assistant United States Attorney with the Criminal Division of the Southern District of New York.

Mr. Neiman has in-depth experience with complex civil and criminal litigation and internal investigations. His recent representations have included:

  • A resounding victory as part of a trial team for clients T-Mobile and Deutsche Telekom in a landmark antitrust trial in which attorneys general from 13 states and the District of Columbia sought to enjoin the merger of T-Mobile and Sprint.
  • A high-tech company in successful federal court challenge to state Attorney General investigation
  • A financial institution in multiple trials growing out of the collapse of the Puerto Rico bond market
  • A high-tech company in defending privacy litigation brought by state Attorney General
  • A bank executive in SEC investigation of price manipulation and misrepresentations with respect to closed-end municipal securities funds
  • A hedge fund in parallel criminal and SEC insider trading investigations
  • A high-tech company in a criminal investigation related to internet advertising of pharmaceuticals
  • The head of a private equity firm in a perjury and bribery investigation
  • A corporate CEO in a criminal accounting fraud investigation
  • An investment bank and its employees in parallel regulatory and criminal investigations related to securities lending
  • The chairmen of two publicly traded companies in criminal investigations related to internet gambling
  • An international organization in connection with the criminal investigation of its director 

As an Assistant United States Attorney for the Southern District of New York, Mr. Neiman focused on white collar criminal investigations involving mail and wire fraud, accounting fraud, tax fraud, securities fraud, healthcare fraud, art fraud, immigration fraud and foreign bribery.

As a prosecutor, Mr. Neiman tried nine white collar criminal cases, including the successful prosecution of the former owners of Days Inn of America for massive tax evasion and creditor fraud schemes, the former General Counsel of the United States Department of the Treasury for securities and wire fraud, and a leading antiquities dealer for conspiring to sell a sculpture looted from Egypt. He also led the government's largest Foreign Corrupt Practices Act investigation to date, into the alleged payment of tens of millions of dollars in bribes to the President of Kazakhstan and other senior officials there in connection with major oil deals in the 1990s.

Mr. Neiman served as the Deputy Chief Appellate Attorney from 2004-2005. He has argued more than fifteen appeals in the Second Circuit and supervised the government's response to more than forty criminal appeals, including that of the accused mafia boss John Gotti Jr. He also supervised the government's defense of the constitutionality of statutes criminalizing the sale of bootlegged recordings of live musical performances and the willful failure to pay child support.


  • Mr. Neiman was the recipient of the Executive Office of United States Attorneys' Directors Award for Superior Performance as an Assistant United States Attorney.
  • Mr. Neiman was selected as a "Future Star" in the 2012 and 2013 editions of Benchmark Litigation.
  • Mr. Neiman has been named a "New York Super Lawyer" in 2007, 2008, 2011 and 2012.

Insights & News


  • Education

    • JD, New York University School of Law, 1991

      summa cum laude (first in class); Developments Editor, New York University Law Review
    • BA, Brown University, 1988

      magna cum laude Phi Beta Kappa
  • Admissions

    • New York

  • Clerkships

    • The Hon. John M. Walker Jr., US Court of Appeals for the Second Circuit, 1991 - 1992



Unless you are an existing client, before communicating with WilmerHale by e-mail (or otherwise), please read the Disclaimer referenced by this link.(The Disclaimer is also accessible from the opening of this website). As noted therein, until you have received from us a written statement that we represent you in a particular manner (an "engagement letter") you should not send to us any confidential information about any such matter. After we have undertaken representation of you concerning a matter, you will be our client, and we may thereafter exchange confidential information freely.

Thank you for your interest in WilmerHale.