Grant Thornton LLP

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Grant Thornton LLP
Company type Limited liability partnership
Industry Accounting, tax, and business advisory services
Founded1924;101 years ago (1924) (as Alexander Grant & Co.)
1986 (1986) (as Grant Thornton LLP)
FounderAlexander Richardson Grant
Headquarters Grant Thornton Tower
Chicago, Illinois, U.S.
Key people
Jim Peko, CEO
Rick Surett, CFO [1]
Products Professional services
RevenueIncrease2.svg US$1.9 billion (2019)
Number of employees
8,500+
Parent Grant Thornton International

Grant Thornton LLP is the 9th largest accounting firm in the United States with 59 offices across the US, 8,500+ employees, and annual revenues of US$1.9 billion. [2] [3] [4] It is the United States member firm of Grant Thornton International, the 7th largest global accounting network by revenue. [5]

Contents

In 2024, the partners of Grant Thornton sold a majority of the firm to New Mountain Capital, a private equity firm, which has significantly impacted the business. [6]

History

Early history

In 1924, Alexander Richardson Grant, a 26 year old senior accountant with Ernst & Ernst (later Ernst & Young) decided to leave the firm and start his own business with William O’Brien. Alexander Grant & Co. was built in Chicago and it provided services as a middle market firm. The firm was growing rapidly and nationally under the guidance of several new leaders during the next three decades. [7] [8]

In 1961, the company established its national office in Chicago and earned net revenue of more than $5 million. During this time, a competitive firm that was also committed to providing services to middle market established in Europe, and this firm later became known as Binder Dijker Otte & Co. (BDO). [7] [8]

During the mid-1960s, the firm decided to expand its business internationally. In 1969, Alexander Grant & Co. merged with companies from Australia, Canada and the United Kingdom to form an organization called Alexander Grant Tansley Witt.

By 1980, Alexander Grant & Co. had joined with 49 international accounting firms, including a UK firm named Thornton Baker, and formed a professional global network, Grant Thornton International.

In 1985, Alexander Grant & Co. merged with Fox & Co. and became the ninth largest accounting firm in the United States, just behind the nation's "Big Eight" firms. At that time, the company had 80 offices and more than 3,000 employees. [9]

In 1986, Alexander Grant & Co. changed its name to Grant Thornton, resulted from its affiliation with the United Kingdom firm Thornton Baker, which also changed its name to Grant Thornton. [8]

Recent history

In 2002, Grant Thornton acquired 7 offices, 43 partners and 396 employees from ex-Arthur Andersen. [9]

In June 2014, Grant Thornton announced J. Michael McGuire as the firm's chief executive officer. [10]

In August 2019, Brad Preber assumed CEO duties of the firm. [11]

As of 2019, Grant Thornton was the sixth largest accounting firm in the United States [12] and had 59 offices with more than 550 partners and 7,000 employees. Its revenue for fiscal year 2018 was $1.7 billion. [2]

In March 2020, Grant Thornton LLP teamed up with GroupSense to offer digital crime mitigation technology. [13]

In March 2024, the company announced a deal where private equity firm New Mountain Capital would acquire a majority stake. At the time of the announcement, it was the seventh biggest accounting firm in the US, after the Big Four (Deloitte, EY, PwC, and KPMG), RSM, and BDO. The move came amid ongoing private equity interest in the accounting space, with Baker Tilly receiving investment of $1 billion from a different private equity group, Hellman & Friedman, the prior month. [14]

As a result of the sale, the firm transitioned to an alternative practice structure, with Grant Thornton LLP engaging in attest services and Grant Thornton Advisors LLC handling business advisory and non-attest services. [15] [6]

Operations

Headquartered in Chicago, Grant Thornton LLP has three service lines: audit, tax, and advisory services. Specific advisory services and areas of expertise include: Sarbanes-Oxley compliance, mergers and acquisitions advice, tax, and business valuations. Target industries include construction, distribution, energy, financial services, food and beverage, healthcare, hospitality and restaurants, life sciences, manufacturing, not-for-profit organizations, private equity, real estate, retail, technology, and transportation. [16]

Services

Grant Thornton offers three main service lines: [17]

Tax Desk

Tax desks is developed by Grant Thornton US and it connects other member firms in different countries to help clients grow their business and solve their common problems in the global market. Grant Thornton US has established the desks between the United States and the UK, the United States and China, and the United States and Japan. [18]

Criticisms

Sponsorship

References

  1. "Kevin Zubor | Grant Thornton". www.grantthornton.com. 22 March 2022. Retrieved March 23, 2022.
  2. 1 2 "About us | Grant Thornton". www.grantthornton.com. Retrieved February 18, 2019.
  3. "Fact sheet | Grant Thornton". www.grantthornton.com. Archived from the original on April 10, 2016. Retrieved March 30, 2016.
  4. "IPA | Rankings of INSIDE Public Accounting's Top 500 CPA Firms". Inside Public Accounting. 2025-09-15. Retrieved 2025-09-16.
  5. Smith, Philip. "Top 20 International Networks 2018". www.accountancyage.com. Accountancy Age. Retrieved February 18, 2019.
  6. 1 2 Treadway, Clint (2024-06-03). "Grant Thornton Closes Deal With Private Equity Firm New Mountain Capital". CPA Practice Advisor. Retrieved 2025-05-22.
  7. 1 2 "Grant Thornton History: Founding, Timeline, and Milestones - Zippia". www.zippia.com. 2020-08-27. Retrieved 2025-07-23.
  8. 1 2 3 "History of Grant Thornton" . Retrieved April 23, 2016.
  9. 1 2 International Directory of Company Histories, Vol.57. St. James Press. 2004.
  10. Newquist, Caleb (June 2, 2014). "Grant Thornton Names Mike McGuire CEO-elect". Going Concern. Retrieved April 23, 2016.
  11. "CAQ Statement on Leadership Transition at Grant Thornton LLP | The CAQ". thecaq.wpenginepowered.com. Retrieved 2025-07-24.
  12. "Accounting Firms in the US - Statistica". April 10, 2024.
  13. "GroupSense and Grant Thornton Announce Technology Alliance | Breeze". Press release. March 5, 2020. Retrieved August 16, 2021.
  14. Foley, Stephen; Gara, Antoine (15 March 2024). "Grant Thornton US sells majority stake to private equity". www.ft.com. Retrieved 2024-03-15.
  15. King, Rachael (2024-05-30). "Grant Thornton Layoffs and PE Takeover: What's Happening?". Accountancy Age. Retrieved 2025-07-23.
  16. "Construction | Grant Thornton". www.grantthornton.com. Retrieved March 30, 2016.
  17. "Fast Fact" (PDF). Retrieved April 23, 2016.
  18. "Helping dynamic organizations grow internationally". Grant Thornton. Archived from the original on August 22, 2016. Retrieved April 23, 2016.
  19. Johnson, Sarah (June 29, 2007). "Grant Thornton Fires Back at PCAOB Criticism". CFO. Retrieved April 24, 2016.
  20. Barrouquere, Brett (2013-11-21). "Kentucky Judge Hits Accounting Firm with $99M Fraud Judgment". Insurance Journal. Retrieved 2025-09-12.
  21. "Kentucky Supreme Court says accounting giant Grant Thornton must pay $100 million". Cincinnati.com. Archived from the original on 2019-06-20. Retrieved 2025-09-12.
  22. "Grant Thornton Signs With PGA Tour, Rickie Fowler; Replaces PwC As Players Partner". www.sportsbusinessdaily.com. 5 December 2017. Retrieved December 18, 2017.
  23. "Grant Thornton Ups Golf Spend With PGA Tour, Rickie Fowler Deals". www.sportsbusinessdaily.com. 5 December 2017. Retrieved December 18, 2017.
  24. "Hornets Announce Grant Thornton LLP to Become Team's Official Accounting Firm". NBA. December 14, 2015. Retrieved April 24, 2016.
  25. "Growing the Game with Grant Thornton". Alabama State University Athletics. 2022-08-20. Retrieved 2025-07-24.
  26. "Growing the Game of Golf with Grant Thornton". North Carolina Central University Athletics. 2022-08-18. Retrieved 2025-07-24.