Principals


Thomas J. Fiedorowicz, CPA

  • Principal, Donald T. Ostop & Company, P.C.
  • Bachelor of Science in Business Administration - Central Connecticut State University
  • Joined the Firm in 1978
  • Member - American Institute of Certified Public Accountants, Connecticut Society of Certified Public Accountants
  • Contact: thomas.f@dtoco.com

Ellen A. Harris, CPA

  • Principal, Donald T. Ostop & Company, P.C.
  • Bachelor of Science in Business Administration - Accounting, Providence College
  • Joined the Firm in 1983
  • Member - American Institute of Certified Public Accountants, Connecticut Society of Certified Public Accountants
  • Contact: ellen.harris@dtoco.com

Todd W. Doten, CPA, MST

  • Principal, Donald T. Ostop & Company, P.C.
  • Masters of Science in Taxation, University of Hartford
  • Bachelor of Science in Business Administration - Accounting, University of Connecticut
  • Joined the Firm in 1984
  • Member - American Institute of Certified Public Accountants, Connecticut Society of Certified Public Accountants
  • Contact: todd.doten@dtoco.com

Donald B. Harger, CPA, MSPA, CFP

  • Principal, Donald T. Ostop & Company, P.C.
  • Masters of Science in Professional Accounting, University of Hartford
  • Bachelor of Science in Business Administration - Accounting, Bryant College
  • Joined the Firm in 1978
  • Member - American Institute of Certified Public Accountants, Connecticut Society of Certified Public Accountants
  • Contact: donald.harger@dtoco.com


Contact Us: (860) 677-0779 or info@dtoco.com CPA Members:
American Institute of Certified Public Accountants • CT Society of Certified Public Accountants