Mary A. Trigo, CPA

Assurance Services Manager

Mary provides accounting and auditing services to a variety of clients, with an emphasis on not-for-profit, foundations and manufacturing organizations. She is a member of Sisterson’s energy and manufacturing/distribution industry groups. Mary started her career at EEPB, PC in Houston, Texas, serving companies in the financial services, oil and gas, and manufacturing industries as well as not-for-profit organizations.

In addition to her client responsibilities, Mary serves as an instructor for the firm’s in-house continuing professional education program on sessions relating to accounting and auditing matters.

Mary joined Sisterson in 2013. She lives with her husband and son in Highland Park. A true animal lover, Mary also lives with three cats and two guinea pigs.


  • B.S. in Accounting,University of Houston
  • M.S. in Accountancy, University of Houston

Professional Certifications

Certified Public Accountant (Texas and Pennsylvania)

Professional & Community Involvement

  • American Institute of Certified Public Accountants
  • Pennsylvania Institute of Certified Public Accountants

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