Trevor W. Williams, CPA

Partner, Audit, and Director, Diversity, Equity & Inclusion


Mr. Williams has worked in public accounting since 1996. He has extensive experience with audit functions, contractual compliance rules, regulations, policies, procedures and accounting operations. He is active in the firm’s implementation of the latest Statement on Auditing Standards concerning the assessment and response to audit risk in a financial statement audit.

As a partner, Mr. Williams is responsible for all aspects of client service and engagement administration. He manages the overall planning, budgeting, and completion of audit engagements, as well as the preparation, review and presentation of financial statements and management comments to those charged with governance. Additionally, he assists and supervises staff to ensure accurate and efficient completion of fieldwork and report presentation.

Mr. Williams is the director of GRF’s Diversity, Equity and Inclusion initiative founded in 2019, and he currently serves as the Eastern Region President of NABA, Inc.

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Education and Certifications

  • B.S. in Accounting, Temple University

Professional Affiliations

  • NABA, Inc. Eastern Region President
  • Center for Nonprofit Advancement, Former Board Member
  • Greater Washington Society of CPAs (GWSCPA), Board of Governors
  • Finance and Administrative Roundtable (FAR), Treasurer
  • American Institute of CPAs (AICPA)
  • Maryland Association of CPAs (MACPA)
  • Kappa Alpha Psi Fraternity
  • Leadership Greater Washington’s Class of 2014

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