Top Accounting Firms: A Comprehensive Review of the 100 Best in 2021

A Comprehensive Overview

The financial and business landscape continually evolves, and accounting firms are integral players in shaping economic trajectories and fostering growth. In 2021, a multitude of accounting firms have emerged as industry leaders by providing exceptional services, implementing innovative solutions, and showcasing remarkable growth. This detailed review delves into the top accounting firms of 2021, highlighting their strategies, service offerings, and their significant impact on the financial sector.

Detailed Examination of the Top 100 Accounting Firms

The accounting firms that have reached the top 100 demonstrate consistent performance, resilience, and adaptability to a fluctuating business environment. These firms have utilized technology, innovation, and customer-centric strategies to secure their industry-leading positions.

The Big Four: The Titans of Accounting

The Big Four – Deloitte, PwC, EY, and KPMG – maintain their industry dominance in 2021. Their extensive global networks, varied service offerings, and unwavering commitment to quality solidify their position at the accounting industry’s apex.

Top Accounting Firms


Deloitte, with its wide-reaching global presence and diverse services, remains a leader among the Big Four. Amidst economic uncertainties, it exhibits remarkable resilience and continues to prioritize digital transformation initiatives.


The formidable force that is PwC perseveres with its robust focus on assurance, tax, and advisory services. It distinguishes itself through its commitment to creating value for stakeholders via responsible business practices.


EY retains its position through a unique approach to digital innovation and a dedication to building a better working world.


KPMG, known for its client-focused approach and emphasis on leveraging technology for growth and efficiency, continues to impress.

The Contenders: Next in Line

Trailing the Big Four are other industry giants such as Grant Thornton, BDO, and RSM. They have shown considerable growth and emerged as formidable competitors in the market.

Grant Thornton

Grant Thornton’s excellent reputation for high-quality audit, tax, and advisory services has earned it a top-10 ranking. Its commitment to fostering an inclusive and diverse work environment is noteworthy.


BDO impresses with its comprehensive service offerings and a strong focus on cultivating long-term client relationships. You can learn more about their services in this mazars accounting services detailed guide.


With a distinct focus on serving middle-market businesses, RSM has carved out its niche. Its deep industry knowledge differentiates it from competitors.

The Up-and-Comers: Ones to Watch

The emerging leaders in the accounting industry include firms like Baker Tilly, CohnReznick, and Crowe. These firms show immense potential and are expected to rise through the ranks in the upcoming years.

Baker Tilly

Baker Tilly’s dedication to providing exceptional client service and its progressive approach make it one of the industry’s most promising firms.


CohnReznick sets itself apart with its strong focus on delivering innovative business advisory solutions.


With its deep industry specialization and an unwavering commitment to superior client service, Crowe has made a significant impact.

Final Thoughts

The top 100 accounting firms of 2021 have set a high standard with their impressive performances, innovative solutions, and unwavering commitment to quality. They have shown that the right strategies, a robust service portfolio, and a customer-centric approach can lead to success in the challenging financial landscape. These accounting firms will undoubtedly continue to shape the industry and stimulate economic growth as we move into the future.

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