John Koski is the Global Chief Legal Officer for Dentons, where he is responsible for meeting the legal needs of the world's largest law firm. John chairs the Global Risk Management Committee, serves on the Global Management Committee, and reports to the Global Board.

John is a partner in the firm, resident in Chicago. For more than 20 years, John has counseled law firms (including his own), corporate law departments, and lawyers on governance, structure, litigation, transactions, insurance, regulation, compliance, investigations, and professional responsibility matters.

He speaks and writes frequently on legal ethics, risk management, and professionalism matters. He has conducted more than 100 accredited CLE presentations. He has taught individual classes on professional responsibility at the Northwestern Pritzker School of Law and The John Marshall Law School, and is currently a Lecturer at Law at the University of Chicago Law School where he co-teaches a class in professional responsibility.

John is a member of the Association of Professional Responsibility Lawyers, the American Bar Association’s Center for Professional Responsibility, the Illinois Bar and the Florida Bar, and several federal courts, including the United States Supreme Court.