Audit and attest revenue of the leading U.S. accounting firms 2020-2021
In 2021, PwC was the largest accounting firm in the United States in terms of audit and attest revenue, with revenue of almost 6.5 billion U.S. dollars. Deloitte followed, with revenue from audit and attest (A&A) services amounting to 6.42 billion U.S. dollars.
