Jeffrey Blumenfeld

Co-chair, Antitrust practice, Lowenstein Sandler

Jeffrey ( Jeff ) Blumenfeld co-chair’s Lowenstein Sandler’s antitrust/competition practice and is based in Washington, DC. Jeff has more than 35 years of government and private practice experience and has an in-depth knowledge of competition principles, technology, regulation, and economics. Jeff represents companies and their investors on a broad range of competition issues, including criminal antitrust matters (investigations and trials), class action antitrust lawsuits, actions brought by customers and suppliers, actions by or against competitors, monopolization cases, and transactions. Beginning his career with more than a decade at the Antitrust Division of the US Department of Justice (DOJ) and in the US Attorney’s Office for DC, Jeff has first-chaired more than 60 jury trials and has argued more than 20 appellate cases. As Assistant Chief of the Special Regulated Industries Section of the Antitrust Division, Jeff supervised investigative and trial staff in complex matters in the financial services and telecommunications industries. Drawing on this experience, Jeff has taught trial practice throughout his career at a variety of forums, including the Attorney General’s Advocacy Institute of the DOJ, the National Institute for Trial Advocacy, as an adjunct professor at the Georgetown University Law Center, and at several law firms.