The data displays the revenue of the Big Four accounting / audit firms worldwide in 2017. Deloitte was the biggest of the big four firms in terms of revenue having generated approx. 38.8 billion USD in that year.
The "Big Four" accounting firms - additional information
The “Big Four” accounting firms are Deloitte, PricewaterhouseCoopers (PwC), Ernst & Young (EY) and KPMG. They offer such services as audit, assurance, corporate finance and legal services, among others. Deloitte was the biggest of the four companies and therefore the biggest in the world in terms of revenue in 2017.
