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Kessler Topaz is one of the world’s foremost advocates in protecting the public against corporate fraud and other wrongdoing. Our lawyers regularly take on the most notable and best capitalized defense attorneys — and win — in class actions, shareholder derivative suits, antitrust litigation and other complex litigation around the globe. We are proud to have recovered billions of dollars for our clients.

Clients—including institutional investors, pension funds, sovereign wealth funds, consumers, employees, whistleblowers, and governments —choose Kessler Topaz for our fierce dedication, commitment to clients, successful track record and innovative approach to litigation. In addition to billions of dollars in economic recoveries, we have been a proven leader in implementing high-impact corporate governance reforms to protect shareholder rights, improve value and prevent future corporate mismanagement.  Kessler Topaz is also a pioneer and leader in areas including international shareholder litigation, fiduciary breaches and the development of our online portfolio monitoring and claims filing platform, SecuritiesTracker™.


Our peers and the legal media have selected Kessler Topaz for numerous honors, including the National Law Journal’s Plaintiff’s Hot List and Trailblazers Plaintiffs' Lawyers, BTI Consulting Group’s Honor Roll of Most Feared Law Firms, Legal Intelligencer’s Class Action Firm of the Year, LawDragon's Leading Plaintiff Financial Lawyers, and Law360's Titans of the Plaintiffs Bar. Our acclaimed annual seminars for institutional investors are touchpoints for thought leadership, with speakers and attendees from many of the world’s largest and leading institutional investors as well as those from the legal community.


With offices in Radnor, Pennsylvania and San Francisco, California, the Firm is comprised of over 100 attorneys as well as an experienced support staff consisting of paralegals, in-house investigators, legal clerks and other personnel.