About Adam

Adam Johnson is a Tax & Business Services partner in the Firm’s Portland, Maine office. Adam joined Marcum in 2019 via the merger of Dawson, Smith, Purvis & Bassett, P.A. (DSPB) into Marcum’s New England region.

He has extensive experience providing tax consulting, planning, and compliance services to businesses in the real estate and food and beverage industries, as well as professional service firms including those in the law, architecture, medical, and technology fields. He also provides tax services to trusts and high net worth individuals. Adam serves as a trusted advisor to a wide variety of closely held businesses and individuals.

Professional & Civic Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • Maine Society of Certified Public Accountants (MSCPA)
Industry Focus

Real Estate
Food and Beverage
Professional Service Firms
Closely Held Businesses


Master of Science in Business
Administration, Husson College

Bachelor of Science in Accounting,
Husson College