Accounting Firm

Deverson, Tanack & Willison, CPA's

Pennsylvania CPA firm providing audits, tax preparation and financial planning for businesses and individuals

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Deverson, Tanack & Willison, CPA's cover

TrustList summary

Deverson, Tanack & Willison, CPA's is a certified public accounting practice licensed in Pennsylvania and serving clients in and around Pittsburgh. The firm focuses on accounting and tax work for business owners, executives and independent professionals, and it offers help to people facing problems with the IRS.

What Deverson, Tanack & Willison, CPA's offers

Audits, reviews and compilations: assurance and financial statement work for businesses.
Business tax preparation: preparing returns for companies and their owners.
Financial planning for businesses: planning support for firms and their owners.
Tax strategies: planning approaches for both business owners and private individuals.
QuickBooks support: answers to questions about the accounting software.
IRS problem resolution: help for clients dealing with tax disputes or difficulties.

Customers and markets

Its clients are business owners, executives and independent professionals, plus individuals needing personal tax help.

Key facts

Based in: Pittsburgh, Pennsylvania
Licence: licensed CPA firm in Pennsylvania
Client resources: downloadable tax forms, IRS publications and financial calculators on its website

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

Deverson, Tanack & Willison, CPA's is ranked on 2 TrustList rankings: #12 on 1 and #24 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Deverson, Tanack & Willison, CPA's has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Accounting firm · 2 rankings

#12of 6
Pittsburgh
It is one of 10 here listing tax and one of 11 here listing accounting.
Its profile: “Deverson, Tanack & Willison, CPA's is a certified public accounting practice licensed in Pennsylvania and serving clients in and around Pittsburgh.”
Of the 6 here, 11 also cover accounting and 10 also cover tax; 2 also work in Washington.
Behind DeSisto, Jones, Schneeberger & Associates, P.C., ahead of DiPardo Eremic & Co. P.C..
#24of 20
Pennsylvania
It is one of 23 here listing accounting and one of 27 here listing tax.
Its profile: “Deverson, Tanack & Willison, CPA's is a certified public accounting practice licensed in Pennsylvania and serving clients in and around Pittsburgh.”
Of the 20 here, 6 also cover legal and 4 also cover non profit; 4 also work in New Jersey and 4 also work in Pittsburgh.
Behind DeSisto, Jones, Schneeberger & Associates, P.C., ahead of Donn T. Seger, CPA.