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Bradley Preber




Executive summary

Bradley J. Preber is the retired CEO of Grant Thornton LLP, a leading global provider of audit, tax and advisory services to companies, non-profit organizations and government entities. Prior to his term as CEO (November 2019 to July 2022), he served as interim CEO from June through October of 2019. Previously, Preber served as chairman of the Partnership Board, national managing partner of Business Risk Services and as the office managing partner for our Phoenix practice.

Preber has more than 35 years of experience serving as a consultant, expert witness, forensic accountant and fraud investigator. He has investigated cases alleging fraud, waste and abuse, and frequently speaks, writes and teaches on fraud-related matters.

Preber is the recipient of many major accolades. In 2019, Consulting magazine named him a Top 25 Consultant. This annual listing, which focuses on the 25 professionals making the greatest impact in the consulting industry, profiled Preber for his “excellence in leadership.” In 2021 and 2020, he was included on NACD’s Directorship 100: an annual list awarding the most influential leaders in and around the boardroom. Accounting Today named Preber one of the Top 100 Most Influential People in Accounting in 2020 and 2021. He was also named an Employees’ Choice Awards Top CEO in 2021 by Glassdoor. The annual listing recognizes leaders who not only help their businesses drive revenue, but that also engage, motivate and uplift their teams.

Preber graduated from the University of New Mexico in 1981 with a degree in business administration and a concentration in accounting and was inducted into the Robert O. Anderson School of Management Hall of Fame in 2008. He is a certified public accountant in Arizona, Mississippi, New Mexico and Texas, and is a member of the American Institute of Certified Public Accountants. Among many other professional memberships and certifications, he is a certified fraud examiner, certified global management accountant, certified construction auditor and is certified in financial forensics.

As an active member of his community, Preber has held a variety of board seats and leadership roles in organizations in Arizona and New Mexico, including the Greater Phoenix Chamber of Commerce, Arizona State University, The Wellness Community of Central Arizona and Navajo Ministries.  



Professional qualifications and memberships

  • CPA – Arizona, Mississippi, New Mexico, Texas
  • Arizona Society of Certified Public Accountants
  • New Mexico Society of Certified Public Accountants
  • Certified in Financial Forensics, AICPA
  • Certified Fraud Examiner
  • Association of Certified Fraud Examiners, National and Arizona Chapters
  • Certified Construction Auditor


Community involvement

  • University of New Mexico, Anderson School Alumni Board Member
  • Center for Audit Quality
  • AICPA, Board of Directors, Forensic Executive Committee
  • AICPA, Forensic and Valuation Services Section
  • Arizona Society of Certified Public Accountants
  • Arizona State University, Professional Accountancy Business Advisory Council
  • Association of Certified Fraud Examiners (ACFE) - National and Arizona Chapters
  • New Mexico Society of Public Accountants


Presentations and publications

  • Author, Financial Expert Witness Communication: A Practical Guide to Reporting and Testimony, Wiley, 2014.
  • Author, Post-Acquisition Disputes: Common Pitfalls and How to Avoid Them, Arizona Business Lawyer, 2014.
  • Contributing author, “Whistle-Blower Programs,”The Anti-Corruption Handbook: How to Protect Your Business in the Global Marketplace, 2010.
  • Author, Introduction to Civil Litigation Services, Special Report 09-1, AICPA, 2009.
  • Author, ESG investing needs standards to prevent fraud and greenwashing, Fortune, November 2021 



  • BBA, Accounting, Robert O. Anderson School of Management, University of New Mexico


On social media



Servant Leadership: Empathy

A hospital in Texas grew their patient satisfaction score from 1 percent to 90 percent after investing in empathy training and focusing on servant leadership. Empathy is something that’s not frequently... 


Self-awareness equips us with the skill sets needed to better understand what drives our behaviors, grow as leaders and empower those around us. Here are some ways to help embrace this trait... 



Servant Leadership: Healing

If more leaders shared the objective of healing humanity, both physically and psychologically, and making decisions that incorporated well-being and not exclusively economics—something that all leaders... 



Servant Foresight: Healing

“Problem solvers aren’t the real heroes. Problem predictors are.” This Inc. article lays out seven questions leaders and teammates should ask themselves to develop better foresight and proactively solve... 

In the news



The role of business in society

At a WSJ event, politicians and executives say they are re-thinking the role of business in society


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2019 Top 25 Consultants

Brad Preber recognized as 2019 Top Consultant


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