As a leading global independent provider of financial advisory and investment banking services, Duff & Phelps delivers trusted advice, principally in the areas of valuation, transactions, financial restructuring, dispute and taxation. The firm's world class capabilities and resources, combined with an agile and responsive delivery, distinguish the Duff & Phelps client experience.

Duff & Phelps was founded in 1932 to provide high quality investment research services focused on the utility industry. Over the decades, it evolved into a diversified financial services firm that provides financial advisory, investment banking, credit rating and investment management services. The investment management and credit rating businesses were acquired by Virtus Investment Partners and Fitch, respectively. The firm’s current management team acquired Duff & Phelps’ financial advisory and investment banking business in 2004. The following year, Duff & Phelps strengthened its valuation capabilities with the acquisition of Standard & Poor's Corporate Value Consulting business.

Since then, Duff & Phelps has continued to expand and develop its core services. In 2006, it acquired specialty investment bank Chanin Capital Partners, LLC. The following year, it formed a strategic alliance with Tokyo-based Shinsei Bank, Ltd. and added property tax management services through the acquisition of Rash and Associates, LP to complement its tax business. In 2008, it grew its dispute and legal management consulting services with the acquisitions of Dubinsky & Company, P.C. and Lumin Expert Group. It also enhanced its valuation offerings by acquiring Kane Reece Associates, Inc., a valuation consulting firm that specializes in the communications, entertainment and media industries.

In 2010, Duff & Phelps established a presence in Canada and continued to expand its dispute consulting, valuation and corporate advisory services with the acquisition of Cole & Partners, a Toronto-based independent financial advisory practice.