We are Grant Thornton

Arlington, Virginia

Service Experience
  • Audit & Assurance

Dianne Guensberg




Executive summary

Ms. Guensberg is a Managing Director at Grant Thornton in the Global Public Sector Audit practice. Prior to joining Grant Thornton, she was an Assistant Director for the Financial Management and Assurance Team of the United States Government Accountability Office where she led various audits of federal entities including the Schedule of Federal Debt, Internal Revenue Service, Customs Service and Air Force. She was GAO’s liaison to the U.S. Joint Financial Management Improvement Project and led the team's recruiting efforts. She also managed GAO’s work on financial management issues at the Department of Defense, Department of State, and the United States Agency for International Development. She served as a professional staff member for the House Committee on Government Reform, Subcommittees on Government Management, Information and Technology, and Government Efficiency, Financial Management, and Intergovernmental Relations, and for the Senate Committee on Homeland Security and Governmental Affairs, Subcommittee on Financial Management, the Budget and International Security, while on detail from GAO. In this capacity, she was primarily responsible for the oversight of financial management issues. She served as a member of the Federal Accounting Standards Board’s Cost Management Standards Task Force that developed the Managerial Cost Accounting Standards for the federal government. She is currently a member of George Mason University's School of Business Accounting Advisory Council and was a member of the Employer Advisory Council. She is a member of Northern Illinois University’s Accountancy Executive Advisory Council. She was also a Board Member of Karin's Florist in Vienna, Virginia. Ms. Guensberg is a graduate of George Mason University with a B.S. in Accounting. She is a Certified Public Accountant and Chartered Global Management Accountant. She is a member of the American Institute of CPAs, Virginia Society of CPAs, and Association of Government Accountants.



Professional qualifications and memberships

  • Certified Public Accountant - Virginia
  • Chartered Global Management Accountant (CGMA) - AICPA


  • George Mason University, School of Management - BS, Accounting
  • Mary Washington College - Economics

Search for people at Grant Thornton


Enter a name and/or keywords such as service area, industry or location to get to know our business leaders — partner, principal or managing director. We look forward to hearing from you.