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Mac Lillard, GRF

Mac Lillard, CPA/ABV/CITP, CIA, CFE, CISA/CRISC

Senior Manager, Risk & Advisory Services

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Biography

Mac Lillard leads the firm’s practices for Fraud, Forensics, and Valuation services. In addition, he performs a wide range of services related to Internal Audit and Risk Management, providing technical expertise to help clients build and maintain risk management processes, optimize systems through digital transformation projects, enhance controls for fraud prevention/detection, and improve their cybersecurity posture. He travels domestically and internationally to provide services to global organizations.

In his role, Mr. Lillard leads planning, fieldwork, reporting, and ongoing communications for his engagements. He holds designations through professional organizations that allow him to provide his clients with added value and a holistic experience on every engagement.

Mr. Lillard has a broad range of experience, having served as a SOX monitor for a publicly traded company, internal auditor of campaign financing and reporting for a labor union’s election process, expert witness and forensic investigator for numerous court cases, program monitor for a domestic nonprofit’s CARES Act funding, and subject matter expert under co-sourced/outsourced internal audit arrangements.

Mr. Lillard was recognized for his leadership in the profession by CPA Practice Advisor in their 2025 “40 Under 40” award. He is also a recipient of the 2023 AICPA Technology Advisory Standing Ovation Award, which honors excellence in the accounting profession.

He continues his education by speaking at and attending professional seminars related to auditing (internal and external), enterprise risk management, fraud examinations, and information systems control and security. He is a frequent speaker at conferences and professional seminars held by the Institute of Internal Auditors, Information Systems Audit and Control Association, Association of Certified Fraud Examiners, and Risk and Insurance Management Society, amongst others.

He is a board member and former VP of Programs for the Washington, DC Chapter of the Institute of Internal Auditors. He also volunteers his time, serving on the board and supporting committees for nonprofit organizations to assist them in aligning their strategic directives with risk mitigation activities throughout the year.

Education and Certifications

  • M.S. in Professional Accountancy, Clemson University
  • B.S. in Accounting, Clemson University
  • Certified Public Accountant (CPA)
  • Accredited in Business Valuation (ABV®)
  • Certified Information Technology Professional (CITP)
  • Certified Internal Auditor (CIA)
  • Certified Fraud Examiner (CFE)
  • Certified Information Systems Auditor (CISA)
  • Certified in Risk and Information Systems Control (CRISC)
  • Advanced Single Audit Certificate

Professional Affiliations

  • Institute of Internal Auditors (IIA), Washington, DC Chapter, Board Member & former VP of Programs
  • Association of Certified Fraud Examiners
  • Information Systems Audit and Control Association
  • Greater Washington Society of CPAs (GWSCPA)
  • Habitat for Humanity of Metro Maryland, Board and Finance Committee Member

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