About Marc

Marc Armstrong is a director in the Los Angeles office of Marcum. Marc has more than 20 years of public accounting experience including experience with Big Four accounting firms. He focuses his practice on working with closely held businesses and their owners, as well as high-net-worth individuals to reduce their tax burdens. Mr. Armstrong has served clients across sectors including those in technology, retail, restaurants, media and entertainment, cryptocurrency, manufacturing, telecommunications, e-commerce, software, engineering, real estate, and financial services. In addition to providing tax services. He has also lectured on a variety of tax matters and authored several articles for publication.

Professional & Civic Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • California Society of Certified Public Accountants (CalCPA)
  • Provisors

Articles, Seminars & Presentations

  • Tax Options for Developing and Selling Appreciated Land – Live Webinar Tax Lorman Education Services, June 2022
  • Uncertain Certainty California CPA / California Society of Certified Public Accountants, Dec. 2020
  • The Evolution of the California Filing Requirements for Foreign Partnerships California CPA / California Society of Certified Public Accountants, Sept. 2015
Industry Focus

Small Businesses & Their Owners
High Net-worth Individuals
Real Estate
Food & Beverage


Masters in Business Taxation
Bachelor of Science, Accounting
Bachelor of Science, Business with an emphasis in Information Systems
University of Southern California