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Ian J. Engdahl

  • Associate
  • Washington, DC
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OVERVIEW

Ian litigates high-stakes antitrust, data-privacy, consumer-protection, and environmental matters on behalf of consumers, startups, public entities, and other plaintiffs. Ian's practice focuses on high-impact class-action litigation, often at the crossroads of law and technology. His work has contributed to the recovery of billions of dollars for the firm’s clients.

 

As a core member of the firm's Technology and Data Breach practice group, Ian leverages his extensive experience in technology and data-privacy issues to achieve pathbreaking results for data-privacy victims. Ian has represented consumers in some of the largest data-breach class actions, including In re Marriott International Inc. Customer Data Security Breach Litigation, In re T-Mobile Data Security Breach Litigation, and In re Equifax, Inc. Customer Data Security Breach Litigation. Ian serves as a member of the Plaintiffs’ Executive Committee in the Set Forth Data Security Breach case and represents consumers in several biometric privacy cases.

 

In his antitrust practice, Ian has taken on the world's largest banks, Big Tech, and the pharmaceutical industry. He was part of the team that litigated against global banks for price-fixing in the foreign exchange market. He currently represents an app-developer startup in litigation against Meta for monopolization of the personal social networking market, and consumers asserting price-fixing claims against generic drug manufacturers. Ian has also achieved exceptional results for individual antitrust clients in opt-out litigation.

 

In his consumer-protection work, Ian has helped consumers recover nearly $100 million in settlements from banks and retailers to compensate consumers who paid improper junk fees.

 

In his environmental practice, Ian is proud to represent the state where he grew up, Maine, in litigation alleging that the fossil-fuel industry violated Maine law by misrepresenting the role the industry and its products have played in climate change.

 

Ian is an experienced trial advocate. Most recently, he helped secure a $110 million patent-infringement jury verdict against Apple on behalf of a Spanish technology startup.

 

Ian is a fierce advocate for robust data privacy and AI-safety protections for consumers, both inside and outside the courtroom. He authored an amicus brief for the Electronic Frontier Foundation in the Supreme Court, arguing for broad recognition of data-privacy harms. He is a member of the Sedona Conference Working Group 11, which advances the law on issues surrounding technology, privacy, artificial intelligence, and data security. He has served as a panelist on issues ranging from the legal implications of frontier AI models to bank liability for data-breach-related consumer fraud for events hosted by organizations including the RAND Corporation and Sedona Conference WG11.

 

Ian is co-chair of the firm's Technology Committee and serves on the firm’s Social Inclusion Committee and Summer Associate Committee.

EXPERIENCE