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"Big Four" consulting firms in the UK

Statistics report on the "Big Four" consulting firms in the United Kingdom

The report presents a range of statistics and facts on the "Big Four" accounting/auditing firms in the United Kingdom. This includes chapters for each company that are specific to their United Kingdom financials and ESG statistics, as well as an overview of the firms (KPMG, PwC, Deloitte, and EY) worldwide.

Table of contents

Overview

5
  • Premium Statistic Revenue of the Big Four accounting/audit firms worldwide in 2025
  • Premium Statistic Revenue of the Big Four accounting/audit firms worldwide by function 2025
  • Basic Statistic Revenue of the Big Four accounting/audit firms worldwide by region 2025
  • Premium Statistic Combined revenue of the Big Four accounting/audit firms worldwide 2009-2025
  • Basic Statistic Number of employees of the Big Four accounting/audit firms worldwide 2025

Deloitte

5
  • Premium Statistic Revenue of Deloitte UK 2019-2024
  • Premium Statistic Revenue of Deloitte UK 2019-2024, by service line
  • Premium Statistic Revenue of Deloitte UK 2021-2024, by industry segment
  • Premium Statistic Profit per partner of Deloitte UK 2019-2024
  • Premium Statistic Total workforce of Deloitte UK 2019-2024

EY

4
  • Premium Statistic Revenue of EY UK 2018-2024
  • Premium Statistic Total profits of EY UK 2018-2023
  • Premium Statistic Profit per partner at EY UK 2018-2023
  • Premium Statistic Total workforce of EY UK 2020-2025

KPMG

5
  • Premium Statistic Revenue of KPMG UK 2015-2024
  • Premium Statistic Revenue of KPMG UK 2023, by service line
  • Premium Statistic Operating profit of KPMG UK 2015-2023
  • Premium Statistic Total assets of KPMG UK 2015-2023
  • Premium Statistic Total workforce of KPMG UK 2015-2024

PwC

5
  • Premium Statistic Revenue of PwC UK 2010-2025
  • Premium Statistic Revenue of PwC UK 2018-2024, by service line
  • Premium Statistic Revenue of PwC UK 2019-2024, by industry segment
  • Premium Statistic Total profit of PwC UK 2010-2024
  • Premium Statistic Total workforce of PwC UK 2017-2025
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