Top 5 Accounting Firms in the World

3. Ernst & Young

2020 Revenue: $36.4 billion

Ernst & Young (EY) is a professional services firm that provides accounting, consulting, and advisory services to businesses and organizations around the world. The firm was founded in 1989 through the merger of Ernst & Whinney and Arthur Young & Co.

Ernst & Whinney was founded in Cleveland, Ohio in 1903 by Alwin C. Ernst and James B. Whinney, while Arthur Young & Co. was founded in Chicago, Illinois in 1906 by Arthur Young. In the 1980s, the two firms began to expand internationally and eventually merged in 1989 to form Ernst & Young.

Today, EY has a network of member firms in over 150 countries and provides a range of professional services including audit and assurance, tax compliance and advisory, consulting, and financial planning.