What Is Accounting Big 4;What Does It Do

The Accounting Big 4 are the four largest and most recognized accounting companies in the world. They are Deloitte , PriceWaterhouseCoopers , Ernest & Young and KPMG .


The Deloitte is one of the most traditional companies in the audit segment and holds the title of the world’s largest accounting. Headquartered in the United States.

In addition to the audit, the company also offers services such as:

  • Financial advisory
  • Tax and business consultancy
  • Risk management.

PricewaterhouseCoopers (PwC)

The PricewaterhouseCoopers , or PwC, as it is known, is headquartered in England, in the city of London. The company’s operations cover 157 countries. In Brazil alone, it has been in business for over a century – since 1915. PwC ranks second on the list of the largest accounting organizations in the world, being a direct competitor of Deloitte.

Among its services are:

  • Transaction advice
  • Audit
  • Tax, business and corporate consultancy.

Ernst & Young (EY)

The Ernst & Young , also called EY, appears in third place in the category of best audit and accounting firms. Its geographical performance is global, with a presence on seven continents and 28 mega regions of the planet. It also has headquarters in England, London.

With a focus on people, operations, risk and the market, the company provides services for:

  • Auditing and consulting
  • Taxes
  • Corporate transactions.


Most recent among Audit companies, KPMG emerged in 1987, from the merger of several companies. But the youngest of the Big Four leaves nothing to be desired. It is present in 155 countries and is headquartered in Amsterdam, the Netherlands. It remains in the fourth position of the Big Four and among its services are:

  • Audit
  • Entrepreneurial market
  • Taxes

What does an audit company do?

An audit company operates mainly in the financial and accounting areas of organizations. Its job is to identify errors that may impede or hinder the growth of the audited companies. To this end, they examine a series of documentation, including fiscal statements and financial statements , with the intention of validating or identifying the gaps already mentioned. The objective is to ensure the financial and equity compliance of the audited company.

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