PricewaterhouseCoopers (PwC) is a multinational professional services network headquartered in London, United Kingdom. PwC is a professional service company and considered one of the Big Four Auditors, along with Deloitte, Ernst & Young (EY), and KPMG. Vault Accounting 50 has ranked PwC as the most prestigious accounting firm in the world for seven consecutive years, as well as the top firm to work for in North America for three consecutive years. PwC is a network of firms in 157 countries, 743 locations, with 223,468 people. As of 2015, 22% of the workforce worked in Asia, 26% in North America and Caribbean and 32% in Western Europe. The company's global revenues were $35.9 billion in FY 2016, of which $15.2 billion was generated by its Assurance practice, $9.1 billion by its Tax practice and $11.5 billion by its Advisory practice. PwC provides services to 422 out of 500 Fortune 500 Companies.