About Patrick

Patrick O’Brien is a partner in Marcum’s Assurance and SEC Division. He has more than 15 years of experience specializing in financial statement audit services, mergers and acquisitions, and financial and operational consulting. Mr. O’Brien has developed a reputation for working with his clients through their complex accounting and reporting needs, providing services to businesses ranging from closely held, owner-managed companies to publicly traded companies.

In addition to providing financial statement audit services, Mr. O’Brien’s experience extends to the Firm’s CFO and Transaction Services Practice, where he provides advisory services, including financial and operational consulting services and due diligence investigations.

Mr. O’Brien also develops in-house training seminars for the Firm’s professional staff as well as continuing education programs for various outside organizations on complex accounting issues.

Professional & CIvic Affiliations

  • Nashville Jazz Workshop – Finance Committee Member
  • American Institute of Certified Public Accountants (AICPA)
  • Tennessee Society of CPAs (TSCPA)
  • Association of Corporate Growth – TN Chapter
  • Raptors Youth Lacrosse – Treasurer


Financial Reporting
SEC Compliance
Due Diligence Investigations
Financial and Operational Consulting


Master of Business Administration, International Business
Florida Atlantic University

Bachelor of Science, Accounting
Florida State University