While the global consultancy firms may have a significant amount of turnover defined by audit and risk advisory, this service is only one segment of the global market.
Together, the revenue that they generate from consulting services dominates the financial segment of this particular U.S. These multinational businesses primarily provide financial consulting services such as taxation, audit, and risk advisory. The Big Four consists of the firms Deloitte, PwC (Pricewaterhouse Coopers), EY (Ernst & Young) and KPMG. Of all the consultancy firms, the best known are the Big Four, who account for almost 40 percent of the global market. In 2023, McKinsey & Company was rated as the most prestigious consulting firm in the United States with a rating of more than nine. When it comes to consulting services, size does not necessarily amount to prestige.
