About Patrick

Patrick Mannion is a Director in the Transaction Advisory Services division of the Firm’s Mid-Atlantic region. He is also is a member of Marcum’s Philadelphia and Ohio Private Equity Practice Groups. He has over ten years of transactions experience serving clients across a wide variety of industries, including financial services, healthcare, manufacturing, and technology.

Mr. Mannion specializes in the identification and screening of acquisition targets and deal negotiation support. He has guided clients through all aspects of the deal lifecycle. Mr. Mannion assists clients with their needs related to working capital analysis; financial reporting matters; deal structuring; succession planning; and strategic planning.

Prior to joining Marcum in 2020, Mr. Mannion spent time in the TAS practices of both a big 4 accounting firm and a Top 50 national accounting firm. He began his career working for a mid-cap investment bank and a boutique mergers and acquisitions advisory firm.

Professional & Civic Affiliations

  • Association for Corporate Growth, Cleveland Chapter
  • CFA Society
Practice Focus

Carve-out Analysis
Financial Modeling
Buy Side Due Diligence
Sell Side Due Diligence

Industry Focus

Private Equity
Venture Capital
Financial Services
Business Services


Bachelor of Science in Business Administration, Finance & Business Economics
John Carroll University