Big Four (Deloitte, PricewaterhouseCoopers, Ernst & Young, KPMG)

The Big Four refers to the four largest professional services firms in the world: Deloitte, PricewaterhouseCoopers (PwC), Ernst & Young (EY), and KPMG. They provide audit, tax, consulting, and advisory services to businesses and governments globally. Known for their expertise and reputation, these firms help organizations improve performance, manage risks, and ensure compliance with regulations. The Big Four are instrumental in shaping business practices and standards due to their vast resources, knowledge, and industry influence, making them key players in the world of finance and professional services.