Arielle K. Herzberg

Arielle K. Herzberg is counsel at WilmerHale in Denver, Colorado, focusing on complex civil litigation. Her experience includes antitrust and securities fraud class actions, contract disputes, anti-discrimination cases, and civil rights litigation. She also works on government and internal investigations involving corporate governance, the Foreign Corrupt Practices Act, and workplace sexual harassment. Her practice combines disputed civil matters with investigations that require close attention to evidence, legal obligations, and organizational conduct.

Arielle earned her BA in History, summa cum laude, from the University of Pennsylvania in 2013. She received her JD from the University of Pennsylvania Law School in 2016. In law school, she served as an associate editor and senior editor of the Journal of Constitutional Law. She received the Exemplary Pro Bono Service Award and Excellent Pro Bono Leadership Award, reflecting academic work alongside public-interest legal service.

Arielle handles litigation tasks in state and federal court, including managing discovery, taking and defending depositions, preparing witnesses, writing motions and briefs, and preparing for trial. She previously worked as a staff attorney for the American Civil Liberties Union of Colorado and as a litigation associate in New York. She also clerked for Judge Stanley R. Chesler of the U.S. District Court for the District of New Jersey from 2016 to 2017.

Arielle K. Herzberg is admitted in Colorado, New Jersey, and New York, and before the U.S. Court of Appeals for the Fifth Circuit. She has been selected for Best Lawyers: Ones to Watch in white-collar criminal defense for 2024–2027 and commercial litigation for 2027. Her experience across constitutional litigation, commercial disputes, and investigations supports careful case preparation and a practical understanding of how different legal issues can intersect within a single matter.

Law Office Affiliations

• Attorney, Wilmer Cutler Pickering Hale and Dorr LLP
• Member, Colorado Bar Association
• Member, New Jersey State Bar Association
• Member, New York State Bar Association

Licensed State

• Colorado
• New Jersey
• New York

Education

• University of Pennsylvania Law School
  Juris Doctor (JD)
• University of Pennsylvania
  Bachelor of Arts (BA) in History

Awards & Badges