Mark Tessar, CPA, CIA

Senior Manager, Audit


Tessar is an audit senior manager with more than 12 years of experience auditing tax-exempt organizations including charities, foundations, associations and other nonprofit entities. His background includes audits and reviews of employee benefit plans with specialized experience in internal control testing of financial, operational and IT controls. In addition to his role as an external auditor, Mr. Tessar has also performed internal audits at various organizations.

Mr. Tessar is responsible for performing fieldwork and reviewing the work of audit staff, and client interaction on audits performed in accordance with auditing standards generally accepted in the United States of America, Government Auditing Standards and the requirements of Title 2 U.S. Code of Federal Regulations (CFR) Part 200, Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards (Uniform Guidance). In addition, he ensures the efficient, timely and accurate completion of fieldwork, audit report preparation and other key deliverables.

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Education and Certifications

  • B.S. in Accounting, York College of Pennsylvania
  • Licensed CPA in New York and Pennsylvania
  • Certified Internal Auditor (CIA)

Professional Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • Institute of Internal Auditors (IIA), Long Island Chapter Member
  • New York State Society of CPAs (NYSSCPA), Not-for-Profit Organizations Committee
  • Ovarian Cancer Research Alliance, Treasurer

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