Jonathan King's primary focus is on white-collar crime, including the Foreign Corrupt Practices Act (FCPA) and related issues involving corporate governance and internal investigations.

Jonathan serves as counsel to individuals and businesses in a broad variety of white-collar matters, among them the FCPA and global anti-corruption issues, domestic public corruption matters, corporate fraud and abuse, securities fraud, including insider trading and accounting irregularities, criminal tax and other regulatory and compliance matters, including trade controls and insurance and financial services-related issues. In this regard, he has conducted numerous corporate internal investigations on behalf of corporations and other entities, as well as corporate boards of directors.

Jonathan has also represented both individuals and businesses in connection with grand jury investigations conducted by the US Department of Justice, investigations and enforcement actions brought by the US Securities and Exchange Commission and investigations and prosecutions brought by Attorneys General Offices in various states and by other state and federal agencies. Jonathan has also represented clients in False Claims Act and related matters.

Besides his white-collar work, Jonathan also handles a variety of complex commercial litigation cases on behalf of individuals and corporations involved in business disputes.