Grant Thornton

What the company sells

Grant Thornton sells cybersecurity advisory services that help security and privacy programs operate continuously through connected initiatives. Grant Thornton states that organizations need better visibility across relevant identities, data, systems and third-party relationships. Grant Thornton says cyber, AI, fraud, compliance and audit risks increasingly overlap, but many organizations still manage them in silos.

Grant Thornton offers data privacy consulting to protect sensitive information and support business objectives. Grant Thornton names identity governance and access management capabilities to protect critical systems and information. Grant Thornton names information security consulting and cyber defense to strengthen resilience against evolving threats. In Grant Thornton's 2026 AI Impact Survey, seventy-eight percent of business executives lack strong confidence that they could pass an independent AI governance audit within 90 days.

Grant Thornton says cyber, risk, compliance, privacy and resilience challenges are interconnected. Grant Thornton says it helps organizations manage risk as a connected system through integrated risk management, specialized expertise and solutions designed for measurable outcomes. Grant Thornton Advisors launched a Quantitative Risk service and CoE to support growing demand for risk, modelling and analytics expertise.

Grant Thornton says its Outsourcing Services keep clients focused on their core. Grant Thornton says it guides every stage of a client's automation journey. Grant Thornton's technology modernization team applies deep technology, data, cloud and automation experience with proven partners to find the path to client goals. Grant Thornton names IT strategy, application portfolio strategy and IT cost optimization among its offerings. Grant Thornton and Stax have united to provide end-to-end insight across the full M&A value chain. Grant Thornton's buy-side diligence is grounded in decades of partnership with private equity investors. Grant Thornton offers Exit Planning and Sell-side Diligence for management teams, sponsors and advisors. For a transaction that involves a carve-out, Grant Thornton assists with the transitional services agreements (TSAs), planning and post-close management of the project.

Grant Thornton's Enterprise Assurance Services bring independent attestation and certification under a single, integrated delivery model. Grant Thornton's professionals perform audits of companies across the globe. Grant Thornton says its audits combine predictive modeling, patented ledger analytics technology and artificial intelligence. Grant Thornton says it uses its technology to test full populations of data rather than sampling. Grant Thornton says its teams deliver audits under PCAOB standards. Grant Thornton tailors audit services for private equity-backed and owner-managed companies. Grant Thornton says not-for-profit and higher education organizations need audit providers who understand their priorities and invest in lasting relationships. Grant Thornton says it can help adopters of blockchain, digital assets and Web3 overcome obstacles.

On tax, Grant Thornton says its focus is saving time and money, without sacrificing quality, while helping clients take advantage of enterprise tax automation. Grant Thornton says it can help businesses transform VAT/GST compliance.

Grant Thornton works across a network of 156+ markets. Grant Thornton describes alyx as a streamlined platform that connects real people with the right resources and latest tech.^{[1][4][5][6][8][10][11][12]}

Categories

• Security consulting and advisory (primary category)
• Compare Grant Thornton with companies in the same categoryside by side

Headquarters

Not established from our sources

Founded

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Ownership

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CISO on record

Not yet on our record. Send a verified source

Website

grantthornton.com

Products and services

Product names as the company writes them; what each does, in our words, from the company's own product pages. Never how well it does it.

• Technology Modernization^[2][6]

  Advisory work on updating an organization's technology.

  Grant Thornton's technology modernization team applies deep technology, data, cloud and automation experience with proven partners to find the path to client goals. Offerings named include IT strategy, application portfolio strategy and IT cost optimization.

• Outsourcing Services^[5]

  Outsourcing services that keep clients focused on their core.

Competitors and alternatives

The other companies on our record filed under the same categories, category by category: first those that lead with that category and share more of Grant Thornton's categories, then alphabetical. A list from the record, never a ranking.

• On security consulting and advisory, Grant Thornton competes with Accenture, Airbus, Atos, Booz Allen Hamilton, BSI, Capgemini, CGI, Coalfire, CyberTrust Consulting, Cybolt and 40 more.

What review platforms show

The headline rating and review count each platform showed in public search results on the day we looked, with the link. We do not read or reproduce the reviews, and a rating is the platform's, not ours.

• G2 · 4.8 out of 5 · 3 reviews^[3]seen November 3, 2026

Recent news

Dated company events from the last twelve months, each in one sentence of ours with its source. Newest first.

• November 2, 2026

  Grant Thornton Advisors announced, together with New Mountain Capital and CBIZ, that it completed its $5 billion acquisition of CBIZ. Grant Thornton^[13]

References

Every fact above cites one of these by number. Tier A is the company itself, a regulator or a filing; tier B is trade or business press.

1. [1]Cyber & Privacy | Grant ThorntonGrant Thornton · undated page, accessed October 14, 2026 · Tier A: the company, a regulator or a filing
2. [2]Audit & Assurance, Tax and Advisory Services | Grant ThorntonGrant Thornton · undated page, accessed November 1, 2026 · Tier A: the company, a regulator or a filing
3. [3]Grant Thornton Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed November 1, 2026 · Tier C
4. [4]2026 AI Impact Survey Report | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
5. [5]Advisory Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
6. [6]Technology Modernization | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
7. [7]Transaction Advisory | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
8. [8]Audit & Assurance Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
9. [9]Financial Statement Audits | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
10. [10]Audit Technology Services | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
11. [11]Tax Technology & Transformation | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
12. [12]About Grant Thornton | Grant ThorntonGrant Thornton · undated page, accessed November 3, 2026 · Tier A: the company, a regulator or a filing
13. [13]Newsroom | Grant ThorntonGrant Thornton · published November 2, 2026 · Tier A: the company, a regulator or a filing

Last verified October 14, 2026. Our code found the quoted passage behind each fact on its source page when the fact was recorded, and re-checks every record against its sources each month.

Recorded October 14, 2026, expanded November 3, 2026 from the references above.

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