About Brian

Brian Duffy, a Marcum partner and a member of the firm’s Forensic, Valuation & Litigation Support Services group, has more than 20 years of experience in public accounting. He works closely with attorneys in the litigation of class-action securities cases and other financial matters.

Brian has extensive experience in numerous high profile corporate matters, as well as cases brought by state attorneys general.

Prior to his career at Marcum, Brian worked as a senior auditor with a Big Four accounting firm, serving both regional and national clients in leasing, real estate, and certain not-for-profit industries.

Professional & Civic Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • Pennsylvania Institute of Certified Public Accountants (PICPA)
  • Association of Certified Fraud Examiners (ACFE)
  • Bicycle Coalition of Greater Philadelphia
  • Mid-Hudson Regional Hospital
  • Children’s Hospital of Pennsylvania (CHOP)
  • Alex’s Lemonade Stand Foundation (ALSF)


  • 2015 Philadelphia Business Journal “40 Under 40″ Honoree
  • 2014-2015 PICPA Young Leader Award Recipient
Industry Focus

Real Estate


Magna Cum Laude – B.S., Accountancy
Villanova University

B.B.A., Finance
Villanova University

Professional Designations

Certified in Financial Forensics (CFF)