Industry
Information Technology & Services
Size
5001-10000
Location
Chicago, Illinois, United States
Founded
1924
Social

About Grant Thornton LLP

Grant Thornton LLP, founded in 1924 and based in Chicago, Illinois, is part of an alternative practice structure in the U.S. Under this structure, Grant Thornton LLP is a licensed independent CPA firm that provides attest services, while Grant Thornton Advisors LLC and its subsidiary entities provide tax and business consulting services. Plainly put, the firm serves clients across a range of professional and compliance needs through these related entities.

The organization operates with a unified local presence across several countries, including the U.S. and Ireland, and says its platform includes more than 18,000 professionals. That is the scale it describes. It serves clients across 16 distinct industries and supports them through a combination of attest, tax, and business consulting services.

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Insights

Updated 21 Aug 2026

Grant Thornton competes as a broad professional services firm with Audit & Assurance, Tax, and Advisory services, and its "100 and beyond" positioning points to a push to scale the business while shaping the next phase of growth. Recent moves show a clear focus. The launch of gtap to modernize audit operations in the U.S. and the appointment of Craig Woodfield to lead Assurance Quality Risk both point to audit quality and transformation as priorities.

Strategically, the firm seems to be leaning into technology-enabled transformation and governance-led execution. Its 2025 ESG report shows continued attention to environmental, social, and governance reporting, while the gtap launch suggests audit process modernization is part of the operating agenda. These signals indicate Grant Thornton is aligning service innovation with risk management and sustainability expectations.

On investor and market signals, the firm’s public updates are centered on internal capability-building rather than funding or M&A. A new Assurance Quality Risk leader and the release of an ESG report point to active investment in leadership, compliance, and reputation management, which can matter to enterprise buyers evaluating audit and advisory partners. Strong signals.

Frequently asked questions

What is the address of Grant Thornton LLP?

Grant Thornton LLP is headquartered in Chicago, Illinois, United States.

How many employees does Grant Thornton LLP have?

Grant Thornton LLP has 5001-10000 employees according to its company profile.

What is the valuation of Grant Thornton LLP?

Grant Thornton LLP operates in the Information Technology & Services sector. Public valuation figures are not always disclosed for private companies.