Ronald C. Machen

Co-Chair, White Collar Defense and Investigations Practice Group WilmerHale

Ronald Machen, who has tried over thirty-five cases to verdict, has spent his entire career either prosecuting or defending high stakes criminal and civil litigation matters.  From 2009 to 2015, Mr. Machen served as the United States Attorney for the District of Columbia, where he oversaw the investigation and litigation of major criminal and civil matters.  Under his leadership, the U.S. Attorney’s Office focused on financial recoveries, including more than $1.5 billion in recoveries from banks in sanctions cases.  In 2015, Mr. Machen returned to WilmerHale and his practice has focused on assisting Fortune 500 clients in navigating high profile crisis situations that garner the attention of multiple regulators, enforcement authorities, Congress and private litigants. He is currently handling securities and financial fraud investigations on behalf of financial institutions and litigating matters involving the state and federal False Claims Act, alleged breaches of contract, federal patent infringement, and consumer fraud.   He is also a member of the firm’s global Management, Compensation, and Executive Diversity and Inclusion Committees and Co-Chair of the firm’s Investigations and Criminal Litigation Practice Group. In 2020, Mr. Machen was identified as a Criminal Law Trailblazer by the National Law Journal, recognized by Chambers USA for his white-collar crime and government investigations practice, and selected by his peers as one of the Best Lawyers in America for 2021.