Board of Directors

Board Member
Mark Ellenbogen
Assurance Office Managing Partner


Mark Ellenbogen is the managing partner of the Greater Washington, D.C. office of BDO USA, LLP. He has 20 years of experience in public accounting. Ellenbogen is responsible for the local audit practice, which includes the Software & Technology, Government Contracting, and Private Equity Group practices. He is also responsible for the formulation of growth strategies and the subsequent implementation of those strategies throughout the various practice groups.

Ellenbogen acts as the liaison for the BDO Greater Washington, D.C. audit practice to many local business associations and chambers of commerce. In addition, he previously served as the assistant regional technical director for the Mid-Atlantic region. He also serves as the engagement partner on the Federal Employee Program of BCBSA. His extensive experience includes:

  • Experience with technology and biotechnology companies, telecommunications companies, media companies, manufacturing, educational organizations, publishing companies, manufacturers, government contractors, and professional service firms.
  • Due diligence, opening balance sheet audits, and purchase price allocations.
  • Consulting with clients on various accounting and operational issues, including mergers and acquisitions.
  • Training on a variety of audit and accounting issues to both financial and non-financial audiences.

American Institute of Certified Public Accountants
Association for Corporate Growth National Capital Chapter
Greater Washington Society of Certified Public Accountants
Junior Achievement - Board Member
Mid-Atlantic Venture Association
Serves as Treasurer and Audit Committee Chair of a non-profit Social Services agency in Montgomery County
Tech Council of Maryland - Board Member and Financial Executives Forum Steering Committee Member


Postgraduate Diploma, Accounting, University of Cape Town
Bachelor of Business Science, University of Cape Town (Honors)