Try our corporate solution for free!
(212) 419-8286

Gross revenue of the Big Four accounting / audit firms in the U.S. 2020

Deloitte generated the largest revenue in the United States of the Big Four accounting firms in 2020, earning over 5 billion U.S dollars more than their nearest competitor PricewaterhouseCoopers (PwC). The ranking mirrors the worldwide performance of the Big Four firms, with Deloitte and PwC again competing for the top two positions.

Deloitte’s operations in the Americas

Deloitte reported revenue figures of over 25 billion U.S dollars for North and South America combined in 2020, of which approximately 23 billion U.S. dollars came from the United States. In recent years, the performance of Deloitte in the United States improved, with its revenue increasing steadily since 2010. The growing number of employees at Deloitte provides another indication of the firm’s stature throughout North and South America. Deloitte employed over 149,000 staff members across the Americas in 2020, the highest number among the leading accounting firms in the United States.

The Big Eight of the Eighties

There are four major accounting firms in the world today: Deloitte, PricewaterhouseCoopers (PwC), Ernst and Young (EY), and Klynveld Peat Marwick Goerdeler (KPMG). However, the professional accounting landscape was far different for much of the 20th century, with eight firms competing for the same major clients. The growth of multinational clients in a global economy changed the industry during the 1980s. In order to gain a strong foothold in the new international market, two mega mergers took place in 1989 that involved four of the Big Eight firms: Ernst and Whinney merged with Arthur Young to form Ernst and Young, and Deloitte Haskins and Sells merged with Touche Ross to form Deloitte and Touche. This was the start of the Big Eight gradually being reduced to the Big Four.

Gross revenue of the Big Four accounting / audit firms in the United States in 2020

Loading statistic...
You need to log in to download this statistic
Register for free
Already a member?
Log in
Show detailed source information?
Register for free
Already a member?
Log in

Release date

March 2021


United States

Survey time period


Supplementary notes

Figures have been rounded.
Fiscal years: Deloitte, PwC and EY end June; KPMG ends September.

Open this statistic in...
Statista Accounts: Access All Statistics. Starting from $468 / Year
Basic Account
Get to know the platform

You only have access to basic statistics.

Single Account
The ideal entry-level account for individual users
  • Instant access to 1m statistics
  • Download in XLS, PDF & PNG format
  • Detailed references
$59 $39 / Month *
in the first 12 months
Corporate Account
Full access

Corporate solution including all features.

* Prices do not include sales tax.

Statistics on ""Big Four" accounting firms"

Statista Accounts: Access All Statistics. Starting from $468 / Year
Learn more about how Statista can support your business.