Recognized as a leader in the field of forensic accounting, Steve Rosenthal has earned a reputation for fairness, accuracy and objectivity, which serve as the foundation of his practice.

In his career as a forensic accountant, which spans 45 years, Steve has worked on countless insurance claims and cases in the US and abroad, quantifying economic damages in complex industries like manufacturing, technology and energy.

A founding partner of RGL Forensics, Steve has led investigative accounting teams in the calculation of economic damages in thousands of claims related to high-profile events, including:

  • Severe flooding in Thailand in 2011
  • The earthquake and tsunami in Japan
  • A massive landslide in a US copper mine
  • The World Trade Center collapse on 9/11

Steve regularly appears as an expert witness in a wide variety of legal venues, serving as both an advisor and partner to insurance professionals and lawyers when high-stakes financial matters are at hand.

Steve’s leadership extends to the firm he founded. At RGL, he is a co-director of the firm’s global insurance practice group.

Steven A. Rosenthal


Bachelor of Business Administration – Accounting, City University, New York, 1968

Professional Credentials

Certified Fraud Examiner
Member, Association of Certified Fraud Examiners

Professional History

1997 – Present RGL, San Francisco, California
1977 – 1996 Campos & Stratis, San Francisco, California
1967 – 1977 Johnson, Atwater & Company

Court Experience

Steve has testified as an expert witness on the measure of economic damages in State and Federal courts in many states and the US Virgin Islands on behalf of Defendants and Plaintiffs.