The Big 4 Accounting Firms: A Complete Guide

Introduction

The Big 4 accounting firms are the largest and most prestigious accounting firms in the world. They are Deloitte, PwC, EY, and KPMG. These firms provide a wide range of services to their clients, including auditing, tax, consulting, and financial advisory services.

The Big 4 Accounting Firms Ranking

The Big 4 accounting firms are ranked by revenue, with Deloitte being the largest firm. The following table shows the ranking of the Big 4 accounting firms as of 2021: | Rank | Firm | Revenue (USD) | |---|---|---| | 1 | Deloitte | $50.2 billion | | 2 | PwC | $45.4 billion | | 3 | EY | $40.5 billion | | 4 | KPMG | $32.8 billion |

Mid-Tier Accounting Firms

The mid-tier accounting firms are the next largest accounting firms after the Big 4. These firms provide a similar range of services to the Big 4, but they are typically smaller and have a more regional focus. Some of the largest mid-tier accounting firms include: * Grant Thornton * BDO USA * RSM US LLP * Crowe LLP * Baker Tilly US, LLP

Conclusion

The Big 4 accounting firms are the largest and most prestigious accounting firms in the world. They provide a wide range of services to their clients, including auditing, tax, consulting, and financial advisory services. The mid-tier accounting firms are the next largest accounting firms after the Big 4. These firms provide a similar range of services to the Big 4, but they are typically smaller and have a more regional focus.