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"Big Four" accounting/audit firms in the U.S.

Statistics report on the "Big Four" accounting/audit firms in the United States

The report presents a range of statistics and facts on the "Big Four" accounting/audit firms in the United States. It includes chapters for each company and a chapter comparing the accounting firms (KPMG, PwC, Deloitte, and Ernst & Young) with each other, as well as aggregated financial figures. Also featured are some statistics regarding diversity, equity, and inclusion (DEI) within the firms, however, these numbers will cease to exist in 2025 owing to the discontinuation of DEI policies.

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Table of contents

Overview

5
  • Premium Statistic Combined revenue of the Big Four accounting/audit firms worldwide 2009-2025
  • Basic Statistic Revenue of the Big Four accounting/audit firms worldwide by region 2025
  • Premium Statistic Revenue of the Big Four accounting/audit firms worldwide in 2025
  • Basic Statistic Revenue of the Big Four accounting/audit firms U.S. 2025
  • Basic Statistic Leading accounting firms U.S. 2025-2025, by revenue

Deloitte

7
  • Premium Statistic Deloitte revenue U.S. 2016-2024
  • Premium Statistic Deloitte revenue share U.S. 2016-2024, by service line
  • Premium Statistic Deloitte total professional staff U.S. 2022-2024, by position
  • Premium Statistic Number of employees at Deloitte U.S. 2021-2023, by gender
  • Premium Statistic Deloitte offices U.S. 2022-2024
  • Premium Statistic Generational representation of Deloitte workforce U.S. 2023, by employment level
  • Premium Statistic Gender share of Deloitte workforce U.S. 2023, by job position

EY

5
  • Premium Statistic EY revenue U.S. 2015-2024
  • Premium Statistic EY revenue U.S. by service 2017-2024
  • Premium Statistic EY revenue share U.S. by service 2017-2024
  • Premium Statistic EY partners/principals gender share U.S. 2019-2024
  • Premium Statistic EY U.S. PPMDD gender share 2019-2024

PwC

5
  • Premium Statistic PwC revenue U.S. 2012-2025
  • Premium Statistic PwC revenue U.S. by service line 2025
  • Premium Statistic PwC total employees U.S. 2020-2025
  • Premium Statistic Gender share of the PwC professional workforce U.S. 2020-2023
  • Premium Statistic Racial share of the PwC professional workforce U.S. 2020-2023

KPMG

5
  • Premium Statistic KPMG revenue U.S. 2012-2025
  • Premium Statistic KPMG revenue U.S. by service line 2020-2025
  • Premium Statistic KPMG total employees U.S. 2020-2025
  • Premium Statistic Gender share of the KPMG professional workforce U.S. 2019-2023
  • Premium Statistic Gender share of partners at KPMG U.S. 2019-2023
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