Revenues of the “Big Four” accounting firms for fiscal year (FY) 2023. Fiscal year dates for each firm are as follows:
The Big Four refers to the four largest professional service networks in the world. All four are headquartered in the UK, and command a dominant global market share.
According to Statista, Deloitte is the biggest, with over 450,000 employees as of FY2023. KPMG is the smallest, with 298,356 employees.
Company | Auditing & Assurance | Consulting | Tax | Other | TOTAL |
---|---|---|---|---|---|
Deloitte | 20.1 | 29.6 | 10.3 | 5.1 | 65.1 |
PwC | 18.7 | 22.6 | 11.8 | 53.1 | |
EY | 15.1 | 16.1 | 12.1 | 6.1 | 49.4 |
KPMG | 12.6 | 15.9 | 7.9 | 36.4 | |
$ billions |