About Duff & Phelps

Duff & Phelps is the global advisor that protects, restores and maximizes value for clients in the areas of valuation, corporate finance, investigations, disputes, cyber security, compliance and regulatory matters, and other governance-related issues. We work with clients across diverse sectors, mitigating risk to assets, operations and people. With Kroll, a division of Duff & Phelps since 2018, our firm has nearly 3,500 professionals in 28 countries around the world.

Our clients include publicly traded and privately held companies, law firms, government entities and investment organizations such as private equity firms and hedge funds. We also advise the world’s leading standard-setting bodies on valuation and governance best practices.

Our team differentiates ourselves in our commitment to question assumptions, be the independent eye, critically analyze facts and tell our clients what they need to know to make sound decisions. Duff & Phelps cuts through complexity and creates clarity for our clients to ensure compliance, reduce risk, overcome emerging challenges and enhance value.

William Duff and George Phelps founded Duff & Phelps in 1932 in Chicago because they saw that banks and insurance companies struggling in the Great Depression needed investment research based on rigorous analysis and technical expertise. 

Over the years, the firm branched into financial advisory and corporate finance, broadening and deepening our service offering and expertise to assist businesses in industries outside of the banking and insurance sector while maintaining the same commitment to technical expertise. Through acquisition and organic growth Duff & Phelps has developed into the diverse and agile firm it is today, serving more than 5,000 clients each year, including over 50% of the S&P 500, 60% of the Fortune 100, 80% of the Am Law 100 and 70% of the world’s top-tier hedge and private equity funds.

History and Timeline

The Duff & Phelps Difference

Our Services

Our Leadership Team

Our Professionals

Global Locations

Related Services

Valuation Advisory

Valuation and consulting for financial reporting, federal, state and local tax, investment and risk management purposes.

Valuation Advisory

Corporate Finance

Comprehensive support throughout mergers and acquisitions and other corporate transactions.

Corporate Finance