Jessica Ellsworth co-heads the firm's Supreme Court and appellate practice. She has argued over 100 cases in across federal and state courts, reflecting her deep experience and keen ability to help clients solve litigation challenges.

A Chambers-ranked lawyer, Jess was shortlisted as Litigator of the Year for 2025 by the American Lawyer and a finalist for the Financial Times North America Most Innovative Lawyer. She has been named Litigator of the Week several times, and Most Innovative Supreme Court Lawyer by the Financial Times. Her clients know her to be unflappable under pressure. She has won reversal of bench and jury trial verdicts and argued key trial motions when creating an appellate record is crucial. She is nimble across patent and trademark law, class actions, arbitrability, antitrust, statutory interpretation, and jurisdictional issues. Clients around the world look to Jess to navigate U.S.-based litigation at all levels of courts.