None of the "firms" within the Big Four is actually a single firm; rather, they are professional services networks. Each is a … See more

Since the 1980s, numerous mergers and one major scandal involving Arthur Andersen, have reduced the number of major professional-services firms from eight to four.
The firms w… See more

In 2010, Deloitte, with its 1.8% growth, was able to outpace PricewaterhouseCoopers' 1.5% growth, gaining "first place" in revenue size, and became the largest firm in the professional services industry. In 2011, PwC … See more

A 2019 analysis by Public Company Accounting Oversight Board (PCAOB) in the United States observed that the big four accounting firms bungled almost 31% of their audits since 2009. In another project study on go… See more