We are Grant Thornton

Philadelphia, Pennsylvania

  • Manufacturing
  • Technology and telecommunications
  • Transportation, logistics, warehousing and distribution
Service Experience
  • Audit
  • Private company audit
  • Public company audit

Sean Denham




Executive summary


Sean Denham is the National Special Purpose Acquisition Company (SPAC) Leader, as well as the National Audit Growth Leader. Locally, Sean is the Office Managing Partner (OMP) for Grant Thornton’s Philadelphia office. As OMP, Sean has the privilege of leading an exceptional team of high-performing individuals in the Philadelphia region who provide top tier accounting, advisory and tax services for our clients. As an audit partner of the firm, Sean serves some of Grant Thornton’s most prominent clients including public and private companies in the professional services industries.

Prior to his current role, Sean served as the Regional Managing Partner for Grant Thornton’s Atlantic Coast Region covering Delaware, Eastern Pennsylvania, Maryland, New Jersey, Virginia and Washington, D.C. Sean also served as Assistant Managing Partner for Grant Thornton’s New York Cluster and as Audit Practice Leader for the northeast region. He previously served as the National Partner for Professional Standards, and was involved in solving the most complex accounting, auditing, and risk management matters for clients nationwide.



Community involvement

  • Sean serves on the CEO Council for Growth, an initiative of the Philadelphia Chamber of Commerce dedicated to enhancing economic growth and prosperity in the 11-county region across northern Delaware, southern New Jersey and southeastern Pennsylvania. Sean is also heavily involved in the civic community and currently serves as a board member and treasurer for the Greater Philadelphia Alliance for Capital and Technologies (PACT), and is a cabinet member of the United Way of Greater Philadelphia and Southern New Jersey.



  • Sean is a Certified Public Accountant and earned a Bachelor of Science Degree in Accounting from Lehigh University.

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