Leading U.S. accounting firms by U.S. revenue 2020

This statistic shows the largest accounting (CPA) firms in the United States in 2019, in terms of U.S. revenue. According to the rankings, Deloitte LLP was the largest accounting firm in the United States with U.S. revenue of 21.9 billion U.S. dollars.

Leading accounting firms - additional information

Deloitte was the leading CPA firm in the United States in 2019 with a revenue of 21.9 billion U.S. dollars in the fiscal year ending June, 2019. Worldwide, the company generated a revenue of around 46.3 billion U.S. dollars in 2019 – the largest source of this revenue being the Americas at 24.2 billion U.S. dollars. The company also employed well over 312,000 people worldwide.

Accounting services in the U.S.

In 2018, almost 13 percent of U.S. residents aged 30 to 49 years had used an accountancy service within the last 12 months. The number of accountants and auditors has remained at around 1.2 million in recent years. In 2018, there were 1.26 million people employed in these professions, this was forecasted to increase to 1.4 million by 2022. Although the sector is expected to flourish in terms of numbers, there is a considerable gender pay gap within the accounting and auditing industry. In 2018, men earned around 1,404 U.S. dollars per week whereas women earned roughly 1,108 U.S. dollars per week for doing the same job.

Leading accounting firms in the United States as of March 2020, by U.S. revenue (in billion U.S. dollars)*

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Release date

February 2020


United States

Survey time period

as of March 2020

Supplementary notes

* Figures based on company annual reports or Accounting Today estimates.
** Gross revenue.
*** CLA does not have a headquarters location — there is no single place from which the firm is controlled or directed. Individual teams/offices are empowered to make decisions as much as possible.
Figures have been rounded.

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Statistics on "Accounting services in the U.S."

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