What is Duff & Phelps?
Duff & Phelps is a global advisory and investment firm that specializes in providing valuation, corporate finance, disputes, and other related services. With a rich history dating back to 1932, the firm has established itself as a trusted partner for businesses, financial institutions, law firms, and government entities across the globe. This article delves into the history, services, and impact of Duff & Phelps, providing a comprehensive understanding of this renowned firm.
History of Duff & Phelps
Founded by William E. Duff and George E. Phelps in New York City, the firm initially focused on providing independent stock valuation services. Over the decades, Duff & Phelps has evolved and expanded its service offerings, growing into a global organization with offices in major financial centers worldwide. In 2018, the firm was acquired by Kroll, a leading provider of risk, governance, and cybersecurity solutions, further enhancing its capabilities and global reach.
Services Offered by Duff & Phelps
Duff & Phelps offers a broad range of services designed to help clients navigate complex business challenges and make informed decisions. These services can be categorized into four primary areas:

- Valuation Advisory Services: Duff & Phelps provides independent, objective valuation opinions for various purposes, including mergers and acquisitions, financial reporting, tax, and litigation support.
- Corporate Finance: The firm's corporate finance team advises clients on capital raising, restructuring, and other strategic financial matters, helping them optimize their capital structures and maximize shareholder value.
- Disputes and Investigations: Duff & Phelps' experts assist clients in resolving complex disputes and conducting investigations, drawing on their deep industry knowledge and analytical skills to provide persuasive evidence and insights.
- Risk Advisory: The firm helps clients identify, manage, and mitigate various risks, including cybersecurity, operational, and regulatory risks, enabling them to protect their assets and reputation.
Industry Expertise and Global Reach
Duff & Phelps serves clients across a wide range of industries, including financial services, technology, healthcare, real estate, and consumer goods, among others. Its global presence, with offices in key financial hubs such as New York, London, Hong Kong, and Mumbai, allows the firm to provide tailored, culturally sensitive solutions to clients operating in diverse markets.
Notable Engagements and Impact
Throughout its history, Duff & Phelps has been involved in numerous high-profile engagements, demonstrating its ability to handle complex, high-stakes matters. Some of the firm's notable engagements include:
| Engagement | Description |
|---|---|
| Enron Corporation | Duff & Phelps was engaged to provide independent valuation services for Enron's special purpose entities, contributing to the unraveling of the company's accounting fraud and subsequent collapse. |
| Lehman Brothers Holdings Inc. | The firm was appointed as an advisor to Lehman's bankruptcy estate, assisting in the recovery of assets and the wind-down of the failed investment bank's operations. |
| Volkswagen AG (Diesel Emissions Scandal) | Duff & Phelps was retained to estimate the potential financial impact of the diesel emissions scandal on Volkswagen, helping the company manage its response to the crisis. |
These engagements highlight Duff & Phelps' ability to tackle complex challenges and provide valuable insights to its clients, helping them navigate critical business issues and achieve their objectives.

Duff & Phelps Today
As part of Kroll, Duff & Phelps continues to build on its legacy, leveraging its deep expertise and global reach to deliver innovative, data-driven solutions to clients. The firm remains committed to its founding principles of independence, objectivity, and excellence, ensuring that it continues to be a trusted advisor to businesses and institutions around the world.






















