425 Lexington Ave
New York, NY 10017

+1 212 455 3393

Litigation Star

Top 250 Women in Litigation

Lori Lesser is a Partner at Simpson Thacher & Bartlett LLP, where she practices in the Litigation Department and is Head of the Intellectual Property Practice and Co-Chair of the Privacy and Cybersecurity Practice. Lori advises on all aspects of intellectual property, technology and privacy law, including corporate transactions, litigation, licensing, outsourcing, strategic agreements and counseling in all industries. 

Her IP litigation practice comprises trial and appellate work and WIPO arbitrations. Her IP transactional experience includes mergers and acquisitions, securities offerings and secured financings, bankruptcy and restructurings, joint ventures, licensing, outsourcing, counseling and other strategic agreements. 

Lori has been listed as one of the “Notable Women in Law” (Crain’s New York), in the “Top 250 Women in Litigation” (Euromoney’s Benchmark Litigation), “Top 50 Under 45” U.S. IP Lawyers (IP Law & Business), “Top 45 Under 45” U.S. women lawyers (The American Lawyer), and “20 Most Influential Women in IP Law” (Law360). She is also recognized in Technology (Nationwide) and in Band 1 for Technology (NY) by Chambers USA, which describes her as “highly responsive, detailed in her analysis and provides practical guidance based on sound judgment.” Clients have cited her as “a thought leader in the transactional space” who provides “excellent service” with “second-to-none knowledge” in the sector; “an exceptionally smart and knowledgeable lawyer”; and a “master of the subject matter.” The Legal 500 recognizes Lori as a “Leading Lawyer,” where she is described as “one of the outstanding lawyers practicing in this field”; “a true difference maker, who provides clients with a competitive advantage in any negotiation”; and “not only a top-notch technology lawyer but also a superb transactional one.”

Lori was recently named “Privacy & Data Protection Lawyer of the Year” at Euromoney’s Women in Business Law Americas Awards for 2022. She is also consistently recognized by Best Lawyers in America, for which she has twice been named the “Information Technology Lawyer of the Year” for New York City. In 2021, MergerLinks named Lori first among the “Top Intellectual Property Lawyers in North America” and in 2020, she was named among the top 10 “Female M&A Lawyers in North America.” 

Lori has served as a David Rockefeller Fellow for New York City and serves on the boards of the Partnership Fund for New York City and Greater NY. She is a member of the Harvard Radcliffe Institute’s Dean’s Advisory Council, a former director of the Harvard Alumni Association and the past president of the Harvard Law School Association of NYC. She serves on advisory boards for ChIPs (chief IP counsel) and Hunter College’s pre-law advisory program. 

Lori graduated from Harvard University (A.B., magna cum laude and Phi Beta Kappa, 1988) and Harvard Law School (J.D., cum laude, 1993).


Updated Sep 2022