Global Investigations Review Ranks Arnold & Porter Among World’s Leading Investigations Firms

Global Investigations Review (GIR) included Arnold & Porter in the 2025 edition of its annual "GIR 100," a curated list of the world's top 100 leading international investigations practices "that can handle sophisticated matters with confidence and expertise."

In the report, GIR praised Arnold & Porter as a "longstanding player in the global white-collar arena," noting the practice "has expanded geographically in recent years, with notable hires in Boston, Houston, Chicago, and Asia, complementing its established centres in Washington, DC, New York, and London." The publication also praised the practice's large stable of former federal prosecutors and government officials, stating that "this reservoir of public-sector experience underpins the group’s pragmatic engagement with regulators, strategic use of compliance assessments, and an emphasis on early-stage resolution where possible."

Clients turn to Arnold & Porter’s White Collar Defense & Investigations group for their most high-stakes, complex, and sensitive matters. From defense and compliance matters involving the False Claims Act and the Foreign Corrupt Practices Act, to allegations of fraud or money-laundering, trade sanctions violations, and complex tax matters, to environmental crime and Congressional investigations, the group represents global leaders across a wide range of industries.