Revenue of the Big Four accounting / audit firms worldwide by function 2018
Revenue of the Big Four accounting / audit firms worldwide in 2018, by function (in billion U. S. dollars)
In 2018, Pricewaterhouse Coopers, also known as PwC, generated some 17 billion U.S. dollars in revenue from its assurance segment, making it the leader in the assurance market of the Big Four.
The Big Four worldwide
The Big Four consist of Pricewaterhouse Coopers, Deloitte, Ernst & Young, and KPMG. These companies are the four biggest accounting and audit firms worldwide. Combined in 2018, they brought in over 148 billion U.S. dollars in revenue. Out of the four, Deloitte had the greatest number of employees in 2018. Following Deloitte was Ernst & Young, while PwC had 250,930 employees and KPMG had the least. Most of Deloitte’s total revenue came from the Americas region, bringing in 22.1 billion U.S. dollars in 2018. Both PwC’s and Ernst & Young’s America’s region also collected the highest amount of revenue for them.
The Big Four in the U.S.
These four companies have the most influence in the accounting and audit sector in the United States, auditing over 80 percent of U.S. public companies. Out of the Big Four, Deloitte brought in the highest gross revenue in the United States. Following Deloitte was PwC, bringing in 15.62 billion U.S. dollars, then Ernst & Young, which brought in 13 billion U.S. dollars. KPMG brought in the least, generating just under nine billion U.S. dollars in that year.
Revenue of the Big Four accounting / audit firms worldwide in 2018, by function (in billion U. S. dollars)
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| Audit/Assurance/AERS* | Advisory/Consulting** | Tax | Other*** | |
|---|---|---|---|---|
| PwC | 17.06 | 13.78 | 10.45 | - |
| Deloitte | 15.2 | 16.5 | 7.9 | 3.6 |
| EY | 12.6 | 9.6 | 9 | 3.6 |
| KPMG | 11.15 | 11.47 | 6.34 | - |
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