We are Grant Thornton

Fort Lauderdale, Florida

  • Real estate and construction
  • Manufacturing
  • Technology and telecommunications
  • Private equity
Service Experience
  • Strategic federal tax
  • Tax
  • International tax
  • Corporate tax

Mark Margulies




Executive summary


As an experienced leader, who’s accounting career spans more than 32 years, Mark serves as Grant Thornton’s managing partner for South Florida, which includes the firm offices in Miami and Fort Lauderdale. He most recently served as a senior partner in Grant Thornton’s corporate tax reporting and advisory practice. His prior roles in the firm include, national tax managing partner for Privately-Held Business, and tax practice leader for Grant Thornton’s southeast region.

Mark joined Grant Thornton in 1999 after a successful nine-year career with a Big 4 firm. Mark possesses in-depth consulting experience, serving diverse clients in both the private and public sectors. His primary technical background has focused primarily on corporate tax matters, with expertise in working with SEC registrants around accounting for income taxes. Mark also consults in areas such as tax accounting method selection and mergers/acquisition planning. Mark’s clients consider him a trusted business advisor, helping bring solutions to their Federal, Multi-State, and International tax demands.

Mark’s experience has crossed a variety of industries, most notably, technology, financial services, real estate, professional sports and manufacturing/distribution. Mark has worked with many of the significant public and private companies in South Florida over the years like The Geo Group, The Miami Dolphins, Citrix Systems, and Bayview Financial.



Professional qualifications and memberships

  • American Institute of Certified Public Accountants (AICPA) – Member
  • Florida Institute of Certified Public Accountants (FICPA) – Member
  • University of Miami Citizen’s Board – Member
  • University of Miami Accounting Advisory Council – Immediate Past Chair & Current Chair of Curriculum Committee
  • Miami Dolphins Challenge Cancer-Sponsor, Heavy Hitter contributor
  • Grant Thornton Political Action Committee-Board Member


Presentations and publications



  • Mark received a BBA in accounting and an MS in Taxation from the University of Miami

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.