Kroll, LLC is a global financial and risk advisory firm headquartered at One World Trade Center, 285 Fulton Street, New York. It describes itself as operating at the intersection of valuation, risk and transactions, with practice areas spanning valuation advisory and financial reporting, corporate finance and restructuring, investigations and disputes, cyber security, compliance and regulatory consulting, expert services, and tax and transfer pricing. Around 6,500 professionals work from more than 70 offices across over 30 countries. Jacob Silverman is Chief Executive Officer.

The firm traces to Duff & Phelps, founded in Chicago in 1932 by William H. Duff and George E. Phelps, and to Kroll Inc., founded in 1972 by Jules Kroll and known for corporate investigations. Duff & Phelps acquired Kroll Inc. in 2018 and adopted the Kroll name across the combined business in 2021, completing the rebrand in 2022. A consortium led by Stone Point Capital and Further Global acquired the firm for $4.2 billion in 2020, with Permira retaining a stake; it remains privately held.