Big Four

Big Four definition - business

Big Four

A widely used reference to the four largest public accounting firms that perform most of the external audits in the United States for large publicly owned corporations. The Big Four include PricewaterhouseCoopers, Deloitte Touche Tohmatsu, Ernst & Young, and KPMG.

The American Heritage® Dictionary of Business Terms Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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