About Duy

Duy Nguyen is a Tax & Business Services partner in Marcum’s Merrimack, New Hampshire office.

Duy assists clients with their multi-state, multinational, and consolidated income tax returns. He has extensive knowledge in accounting for income taxes under ASC740, in addition to broad experience in industries relating to renewable energy, technology, biotechnology, and manufacturing services.

He is a Certified Public Accountant (CPA) licensed in New Hampshire.

Professional & Civic Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • New Hampshire Society of Certified Public Accountants (NHSCPA)
Practice Focus

Commercial Services
International Tax Planning, Compliance & Preparation
Management Advisory

Industry Focus

Renewable Energy


Bachelor of Science, Business Administration
Bryant College