PricewaterhouseCoopers is a multinational professional services network of firms operating as partnerships under the PwC brand. The term "PwC" may be used to refer to an individual member firm within the PwC network, or to several or all of them collectively. PwC ranks as the second largest professional services firm network in the world[5] and is considered one of the Big Four accounting firms, along with Deloitte, EY and KPMG.