Big Four (Deloitte, PwC, EY, KPMG)

The Big Four refers to the four largest global professional services firms: Deloitte, PwC (PricewaterhouseCoopers), EY (Ernst & Young), and KPMG. These firms provide a range of services, including auditing, tax consulting, and advisory services to businesses and governments. Known for their extensive expertise, they help clients navigate complex financial regulations, improve performance, and manage risks. The Big Four are influential players in the accounting and consulting industries, often working with large corporations and shaping financial practices worldwide.