Investigations & Enforcement (International & Cross-Border)

As a top-tier New York practice, Simpson Thacher & Bartlett is regularly sought out by major private equity firms and global corporations as a go-to firm for advice on international transactional mandates. Primarily handling high-end corporate/M&A deals as well as sophisticated fund formation, financing and cross-border tax matters.

Simpson Thacher & Bartlett is recognised for its handling of international investigations and enforcement matters, particularly those involving complex cross-border regulatory scrutiny. The firm advises multinational corporations, financial institutions, and private equity firms on internal investigations, government inquiries, and enforcement actions involving agencies such as the DOJ, SEC, FTC, OFAC, and foreign regulators. Simpson Thacher is especially active in areas such as FCPA and anti-corruption, antitrust enforcement, AML, sanctions, securities fraud, and cybersecurity breaches. Its multijurisdictional approach enables seamless coordination across the Americas, Europe, and Asia. The firm has further expertise in CFIUS-related advisory and international trade compliance.