Largest 'Professional Services Networks' (Accounting Firms) companies in the world

'Professional Services Networks' (Accounting Firms) offer audit, assurance, taxation, management consulting, actuarial, corporate finance, and legal services to their clients.

The Big Four is the nickname used to refer collectively to the four largest professional services networks in the world, consisting of the global accounting networks Deloitte, Ernst & Young, KPMG and PwC.

• Ernst & Young Global Limited (EY)

  EY provides consulting, assurance, tax and transaction services that help solve our client's toughest challenges and build a better working world for all. Headquarters in London, England with 3,12,250 employees in over 700 offices in more than 150 countries around the world.

• Deloitte

  Deloitte Touche Tohmatsu Limited, commonly referred to as Deloitte, is a multinational professional services network with offices in over 150 countries and territories around the world and headquarters in London, England, UK with Number of employees 3,45,374 (2021)

• KPMG

  KPMG International Limited (or simply KPMG) is a British-Dutch multinational professional services network, and one of the Big Four accounting organizations. Headquartered in Amstelveen, Netherlands, although incorporated in the United Kingdom, KPMG is a network of firms in 145 countries, with over 2,36,000 employees

• PricewaterhouseCoopers (PwC)

  PricewaterhouseCoopers International Limited, based in London, England and operate in 157 countries, 742 locations, with 284,000 people.