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Accounting Firm

DeLeon & Stang

CPA firm offering tax, audit and business advisory services to growing businesses and non-profits

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About DeLeon & Stang

DeLeon & Stang is a firm of CPAs and advisers working across tax, assurance and business advisory. It began as an accounting practice and now also helps growing companies and organisations with wider management questions. Its offices are in Frederick, Leesburg and Gaithersburg, and it cites more than 35 years in the profession.

What DeLeon & Stang does

  • Tax services: tax preparation and planning, with guidance on gift, estate and inheritance tax deadlines.
  • Assurance: audits, reviews and compilations of financial statements, including single audits under the Uniform Guidance.
  • Business advisory: help with risk management, process improvement, entity structure, workflows and exit planning.
  • Accounting: everyday financial and accounting matters for clients that need routine support.
  • Strategic consulting: tailored planning work for organisations facing larger decisions.

Who it serves

The firm serves growing businesses, non-profit organisations and individuals. A published client comment comes from the finance director of a biomedical research institute, and the firm has written about Virginia tax benefits for military personnel and veterans.

Key facts

  • Offices: Frederick, Leesburg and Gaithersburg
  • Experience: more than 35 years
  • Ownership: independent, with no plan to be bought by another firm

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

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What the business tells TrustList

Founded
1991 (35 years) evidence sent

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