MARK CAMPBELL is a seasoned trial lawyer engaged in a broad range of litigation matters, including consumer class actions, false advertising, unfair competition, patent, trademark, and other complex commercial disputes. Prior to joining Sidley, he jointly chaired his firm’s Consumer Class Actions and Regulatory Defense practice and served as the Chair of his firm’s litigation department for nearly four years.

Mark has extensive experience in the food, beverage and dietary supplements industries, where he has successfully defended companies in consumer and competitor claims of false advertising and unfair competition. His background also includes responsibility for the development of class certification experts on issues critical to the defeat of class certification, including consumer behavior and economics in multi-district class action litigation.