Listed as a CPA in IRS public preparer records. Source: IRS PTIN FOIA extract (Feb 2026), retrieved October 23, 2026. https://www.irs.gov/pub/foia/foia-massachusetts-extract.csv No state license number is on file. Specialties are blank until this preparer claims the listing. CPA Seek does not contact preparers.

William S. Agnesian

CPA · William S. Agnesian, CPA, P.C.

Tyngsboro, Massachusetts 01879

William S. Agnesian, CPA in Tyngsboro, MA

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William S. Agnesian, CPA in Tyngsboro · CPA Seek