AdminTop 25 Accounting Firms in the USA: A Complete Guide to the Industry Leaders
Accounting firms play an important role in helping businesses manage finances, handle taxes, and make better financial decisions. From preparing financial reports and conducting audits to providing tax planning and business advisory services, these firms help companies stay organized and grow.
The United States is home to some of the world’s largest accounting firms, including the Big Four—Deloitte, PwC, EY, and KPMG—along with many other leading CPA firms serving different industries.
In this guide, we explore the top 25 accounting firms in the USA based on 2026 rankings, their revenue, key services, and areas of expertise. You’ll also learn how to choose the right accounting firm for your business.
How are the Top Accounting Firms in the USA Ranked?
Accounting firms are generally ranked by net revenue, which shows how much revenue they generate from their services, not their profit. For this guide, we follow the 2026 INSIDE Public Accounting (IPA) 500 rankings, based on revenue data firms submit through IPA’s annual Practice Management Survey.
These rankings focus on revenue reported by U.S. firms, which can differ from the worldwide revenue of their global networks. Rankings may change when firms gain new clients, expand services, or merge with other companies. Leadership changes can also influence future growth and business strategy.
However, a higher revenue ranking does not always mean better service. The right accounting firm depends on your business needs, industry, budget, and required expertise.
Top 25 Accounting Firms in the USA: Quick Comparison
The following table compares the 25 largest accounting firms in the United States based on the 2026 INSIDE Public Accounting (IPA) rankings. It highlights their headquarters, reported net revenue, and primary areas of expertise.
| Rank | Accounting Firm | Headquarters | Net Revenue | Main Expertise |
| 1 | Deloitte LLP | New York | $35.69B | Audit, Consulting |
| 2 | PwC | New York | $25.57B | Assurance, Tax |
| 3 | Ernst & Young (EY) | New York | $24.74B | Audit, Advisory |
| 4 | KPMG LLP | New York | $15.90B | Audit, Risk Advisory |
| 5 | RSM US LLP | Chicago | $4.20B | Middle-Market Advisory |
| 6 | Baker Tilly | Chicago | $3.67B | Tax, Consulting |
| 7 | BDO USA | Chicago | $3.02B | Audit, Tax |
| 8 | CBIZ & CBIZ CPAs PC | Cleveland / New York | $2.81B | Accounting, Advisory |
| 9 | Grant Thornton LLP | Chicago | $2.46B | Audit, Advisory |
| 10 | Forvis Mazars LLP | Springfield, MO | $2.32B | Audit, Tax |
| 11 | CliftonLarsonAllen (CLA) | No designated HQ | $2.10B | Outsourcing, Advisory |
| 12 | Crowe LLP | Chicago | $1.39B | Audit, Risk Consulting |
| 13 | Plante Moran | Southfield, MI | $1.30B | Audit, Tax |
| 14 | Eisner Advisory Group | New York | $1.24B | Tax, Financial Advisory |
| 15 | CohnReznick Advisory | Parsippany, NJ | $1.12B | Tax, Advisory |
| 16 | Citrin Cooperman | New York | $985M | Tax, Business Advisory |
| 17 | Andersen | San Francisco | $838.7M | Tax, Valuation |
| 18 | Eide Bailly LLP | Fargo, ND | $835.4M | Audit, Tax |
| 19 | Cherry Bekaert LLP | Raleigh, NC | $812M | Tax, Advisory |
| 20 | WithumSmith+Brown PC | Princeton, NJ | $765M | Audit, Tax |
| 21 | Armanino Advisory LLC | San Ramon, CA | $699.7M | Technology Consulting |
| 22 | Aprio Advisory Group | Atlanta | $681.3M | Tax, Advisory |
| 23 | Wipfli LLP | Milwaukee | $637.8M | Audit, Consulting |
| 24 | Carr Riggs & Ingram | Enterprise, AL | $583.8M | Audit, Tax |
| 25 | Sikich | Chicago | $529.5M | Accounting, Technology |
H2: Top 25 Accounting Firms in the USA in 2026
1. Deloitte LLP
Headquarters: New York, USA
CEO: Jason Girzadas
Net Revenue: $35.69 billion
Deloitte LLP ranks first among the largest accounting firms in the USA. It provides audit, tax, consulting, and financial advisory services to major corporations and multinational businesses. The firm serves industries such as healthcare, technology, finance, and manufacturing. Deloitte also invests in artificial intelligence, digital transformation, and advanced financial technologies to help businesses improve efficiency, manage risks, and make better financial decisions.
2. PricewaterhouseCoopers (PwC)
Headquarters: New York, USA
CEO: Paul Griggs
Net Revenue: $25.57 billion
PricewaterhouseCoopers (PwC) ranks second among the top accounting firms in the USA. It offers audit, assurance, tax, consulting, and business advisory services to companies across various industries. PwC helps multinational businesses manage financial reporting, regulatory compliance, and complex business operations. The firm also focuses on artificial intelligence, digital finance, and technology-driven solutions to help organizations improve financial performance, strengthen business strategies, and support long-term growth.
3. Ernst & Young LLP (EY)
Headquarters: New York, USA
Managing Partner: Dante D’Egidio
Net Revenue: $24.74 billion
Ernst & Young LLP (EY) ranks third among the largest accounting firms in the USA. It provides assurance, tax, consulting, and business strategy services to major organizations worldwide. The firm helps businesses manage financial risks, improve operations, and handle complex regulations. EY also invests in artificial intelligence and audit technology to improve service quality, support business transformation, and help clients make informed financial decisions.
4. KPMG LLP
Headquarters: New York, USA
CEO: Timothy J. Walsh
Net Revenue: $15.90 billion
KPMG LLP is one of the Big Four accounting firms, offering audit, tax, regulatory compliance, and advisory services. It serves industries such as banking, healthcare, insurance, and financial services. KPMG helps organizations manage financial risks, meet regulatory requirements, and improve reporting accuracy. The firm also uses artificial intelligence, data analytics, and digital technologies to support business decisions and strengthen financial operations.
5. RSM US LLP
Headquarters: Chicago, USA
CEO: Brian Becker
Net Revenue: $4.20 billion
RSM US LLP specializes in serving middle-market businesses through audit, tax, consulting, and financial advisory services. The firm supports industries such as manufacturing, healthcare, technology, and financial services. RSM helps growing companies manage financial challenges, improve business processes, and plan for expansion. With its industry-focused approach and investments in digital technology, RSM provides practical solutions that meet the changing needs of businesses.
6. Baker Tilly US LLP
Headquarters: Chicago, USA
CEO: Eric Miles
Net Revenue: $3.67 billion
Baker Tilly US LLP provides assurance, tax, advisory, and business consulting services to companies across various industries. The firm helps businesses manage financial reporting, improve operations, and address complex financial challenges. Its combination with Moss Adams in 2025 expanded its expertise and market presence. Baker Tilly also focuses on digital transformation, industry-specific consulting, and technology-driven solutions to support growing businesses and their long-term financial goals.
7. BDO USA
Headquarters: Chicago, USA
CEO: Matthew K. Becker
Net Revenue: $3.02 billion
BDO USA provides audit, tax, and advisory services to middle-market and large businesses. It serves industries such as healthcare, manufacturing, technology, and financial services. As part of the global BDO network, the firm combines local expertise with international resources. BDO helps organizations manage financial risks, meet compliance requirements, improve operations, and develop strategies for long-term business growth.
8. CBIZ & CBIZ CPAs PC
Headquarters: Cleveland and New York, USA
CEOs: Jerry Grisko / Jeffrey Gluck
Net Revenue: $2.81 billion
CBIZ offers accounting, tax, and business advisory services, while CBIZ CPAs PC provides independent audit and assurance services. Together, their expertise supports businesses across manufacturing, healthcare, finance, and other industries. In November 2026, Grant Thornton Advisors acquired CBIZ, expanding its consulting and tax capabilities. The separate integration of CBIZ CPAs is planned for a later stage.
9. Grant Thornton LLP
Headquarters: Chicago, USA
CEO (Advisory): Jim Peko
Net Revenue: $2.46 billion
Grant Thornton provides audit, tax, risk, and advisory services to public and private businesses. The firm helps companies improve financial reporting, manage regulations, and develop growth strategies. Its expertise covers financial services, manufacturing, healthcare, and technology. Through international expansion, business consulting, and digital solutions, Grant Thornton supports organizations facing complex financial challenges. Its 2026 combination with CBIZ further expanded its advisory capabilities.
10. Forvis Mazars LLP
Headquarters: Springfield, Missouri, USA
CEO: Tom Watson
Net Revenue: $2.32 billion
Forvis Mazars LLP was formed through the merger of BKD and Dixon Hughes Goodman, later establishing a global network with Mazars. The firm provides audit, tax, consulting, and advisory services across healthcare, manufacturing, financial services, and other industries. It combines international resources with local industry knowledge to help businesses manage compliance, improve financial performance, and address complex operational challenges.
11. CliftonLarsonAllen LLP (CLA)
Headquarters: No Designated Headquarters, USA
CEO: Jennifer Leary
Net Revenue: $2.10 billion
CliftonLarsonAllen (CLA) provides accounting, audit, tax, consulting, and outsourcing services to privately held businesses, nonprofit organizations, and growing companies. The firm helps clients manage financial reporting, tax planning, and daily accounting operations. With offices across the United States, CLA focuses on personalized advisory services and industry-specific solutions that help businesses improve financial management and plan for future growth.
12. Crowe LLP
Headquarters: Chicago, USA
CEO: John Kurkowski (Crowe LLP)
Net Revenue: $1.39 billion
Crowe serves businesses across industries such as banking, healthcare, and manufacturing through its accounting and consulting services. Crowe LLP focuses on audit and assurance, while Crowe Advisory provides tax planning, consulting, and business advisory support. The organization helps clients address financial challenges, follow regulatory requirements, and improve reporting accuracy. Crowe also uses advanced technology and data analytics to streamline financial processes and help businesses make informed decisions.
13. Plante Moran
Headquarters: Southfield, Michigan, USA
Managing Partner: Jason Drake
Net Revenue: $1.30 billion
Plante Moran provides accounting, audit, tax, consulting, and business advisory services to organizations across the United States. The firm has strong expertise in manufacturing, real estate, healthcare, and financial services. It helps businesses improve financial reporting, manage tax obligations, and develop practical growth strategies. Plante Moran also offers technology consulting and financial planning services to support better business decisions and long-term success.
14. Eisner Advisory Group LLC
Headquarters: New York, USA
CEO: Charles Weinstein
Net Revenue: $1.24 billion
Eisner Advisory Group LLC, part of EisnerAmper, provides accounting, tax, financial advisory, and business consulting services. The firm supports private equity firms, financial institutions, investment companies, and growing businesses with complex financial needs. Its services include tax planning, financial management, risk advisory, and business strategy. Eisner also focuses on industry-specific solutions to help clients manage regulatory challenges, improve operations, and achieve their financial goals.
15. CohnReznick Advisory LLC
Headquarters: Parsippany, New Jersey, USA
CEO: David Kessler
Net Revenue: $1.12 billion
CohnReznick Advisory LLC provides tax, accounting, and business advisory services to companies across various industries. The firm specializes in real estate, construction, government, and financial services. It helps organizations manage tax requirements, improve financial reporting, and handle complex business challenges. CohnReznick also offers industry-specific financial solutions to support business growth, manage risks, and improve operational performance.
16. Citrin Cooperman
Headquarters: New York, USA
CEO: Alan G. Badey
Net Revenue: $985 million
Citrin Cooperman offers tax, assurance, accounting, and business advisory services to privately held companies, family-owned businesses, and middle-market organizations. The firm helps clients manage financial reporting, tax planning, and business operations. It also provides personalized consulting and financial guidance to support business expansion, improve financial performance, and address challenges faced by growing companies.
17. Andersen
Headquarters: San Francisco, California, USA
CEO: Mark L. Vorsatz
Net Revenue: $838.69 million
Andersen was established in 2002 as WTAS and later adopted the Andersen name. The firm specializes in tax, valuation, and business advisory services for corporations, individuals, and private clients. It provides expertise in international taxation, estate planning, and financial consulting. Through its global network, Andersen helps clients manage complex tax requirements, protect assets, and make informed financial decisions.
18. Eide Bailly LLP
Headquarters: Fargo, North Dakota, USA
CEO: Jeremy Hauk
Net Revenue: $835.39 million
Eide Bailly LLP provides audit, tax, consulting, and business advisory services to organizations across the United States. The firm serves industries such as agriculture, healthcare, financial services, and government. It helps businesses manage tax compliance, improve financial planning, and address operational challenges. Eide Bailly also offers technology consulting and digital solutions to support accounting processes and long-term business growth.
19. Cherry Bekaert LLP
Headquarters: Raleigh, North Carolina, USA
CEO: Michelle Loyd Thompson
Net Revenue: $812 million
Cherry Bekaert LLP provides accounting, assurance, tax, and advisory services to businesses and organizations across different industries. The firm specializes in real estate, government, technology, and professional services. It helps clients manage financial reporting, tax compliance, and business planning. Cherry Bekaert also invests in digital technology and AI-powered audit solutions to improve financial processes, strengthen compliance, and support strategic business decisions.
20. Withum Smith+Brown PC
Headquarters: Princeton, New Jersey, USA
CEO: Patrick Walsh
Net Revenue: $764.96 million
Withum Smith+Brown PC provides audit, tax, and business advisory services to companies across the United States. The firm specializes in technology, life sciences, real estate, and financial services. Withum helps businesses manage financial reporting, improve cash flow, and plan for growth. It also offers digital transformation, risk advisory, and outsourced accounting solutions to support better financial management.
21. Armanino Advisory LLC
Headquarters: San Ramon, California, USA
CEO: Matt Armanino
Net Revenue: $699.74 million
Armanino provides accounting, tax, consulting, and technology solutions to growing businesses. The firm specializes in technology, manufacturing, healthcare, and life sciences. Its services include financial planning, business process improvement, and digital transformation. Armanino also helps companies implement accounting software, automate financial tasks, and use artificial intelligence to improve efficiency and support business growth.
22. Aprio Advisory Group LLC
Headquarters: Atlanta, Georgia, USA
CEO: Richard Kopelman
Net Revenue: $681.34 million
Aprio Advisory Group LLC offers accounting, tax, and business advisory services to companies across various industries. The firm serves healthcare, real estate, technology, and privately owned businesses. Aprio helps clients manage financial planning, tax compliance, and business expansion. Its services also include wealth management, transaction advisory, and financial consulting to support companies through different stages of growth.
23. Wipfli LLP
Headquarters: Milwaukee, Wisconsin, USA
CEO: Kurt Gresens
Net Revenue: $637.80 million
Wipfli LLP provides audit, accounting, tax, and consulting services to businesses and organizations nationwide. The firm focuses on manufacturing, healthcare, financial institutions, and nonprofit organizations. Wipfli helps clients improve financial processes, manage regulatory requirements, and strengthen business operations. It also offers technology consulting, cybersecurity, and digital transformation services to improve productivity and financial decision-making.
24. Carr Riggs & Ingram (CRI)
Headquarters: Enterprise, Alabama, USA
CEO: Dee Burger
Net Revenue: $583.81 million
Carr Riggs & Ingram (CRI) provides audit, tax, accounting, and advisory services to privately held companies and regional businesses. The firm supports clients across industries with financial reporting, tax planning, and regulatory compliance. CRI also offers business consulting and industry-specific financial guidance to help organizations manage risks, improve financial performance, and address changing business needs.
25. Sikich
Headquarters: Chicago, Illinois, USA
CEO: Christopher Geier
Net Revenue: $529.52 million
Sikich combines accounting, tax, consulting, and technology services to support businesses across different industries. The firm specializes in manufacturing, distribution, and professional services. It helps organizations improve financial management, implement business software, and streamline daily operations. Sikich also provides technology consulting and digital transformation solutions. In 2026, it was recognized among Fortune’s Best Workplaces in Chicago for the fifth consecutive year.
Big Four vs. Mid-Tier Accounting Firms: What’s the Difference?
The Big Four—Deloitte, PwC, EY, and KPMG—are the four largest global accounting networks, known for their international presence and wide range of audit, tax, consulting, and advisory services. They often work with large corporations and businesses operating across multiple countries.
Mid-tier accounting firms, such as RSM, BDO, and Baker Tilly, provide similar services but often focus on middle-market companies and specific industries. They may offer more personalized support based on individual business needs.
Both types of firms can help growing businesses manage finances, meet tax requirements, and plan for expansion. The right choice depends on your company’s size, industry, budget, and the complexity of its accounting needs.
How to Choose the Right Accounting Firm for Your Business
Choosing the right accounting firm requires understanding your business needs, comparing services, and checking professional expertise.
Identify Your Accounting Needs and Industry
Start by identifying the accounting services your business requires. Bookkeeping manages daily financial records, payroll handles employee payments, and tax planning helps manage tax obligations. Audits examine financial statements, while financial consulting and business advisory support growth decisions. Shortlist firms based on your business size, industry, and specific financial needs.
Compare Service Fees, Experience, and Support
Don’t choose an accounting firm based only on its popularity or ranking. Compare service fees, industry experience, and the work included in each proposal. Ask about additional charges, communication methods, and response times. Select a firm that understands your business challenges, explains financial matters clearly, and provides reliable support when needed.
Check Credentials, Technology, and Data Security
Check whether the firm has qualified CPAs and relevant industry experience. Ask which accounting software it supports and how employees access financial records. Review its document-sharing methods, access controls, and data protection practices. A firm with suitable technology and clear security procedures can help your business manage sensitive information more effectively.
How Cloud Technology Helps Modern Accounting Firms Work Better
Cloud technology helps accounting firms manage daily tasks, share documents, and work with clients from different locations. Digital tools simplify financial reporting, communication, and file management.
With secure remote access, authorized accountants can work on financial records without depending on office computers. Hosted desktop accounting software also supports collaboration between team members working remotely.
For firms using QuickBooks Desktop, QuickBooks Hosting allows remote access to the software while maintaining its familiar features. Cloud hosting, combined with access controls and regular backups, helps accounting firms improve efficiency and manage financial information.
Frequently Asked Questions About Top Accounting Firms
Which Is the Largest Accounting Firm in the USA in 2026?
Deloitte LLP ranks as the largest U.S. accounting firm by net revenue in the 2026 INSIDE Public Accounting rankings. Its reported revenue is approximately $35.69 billion. Rankings based on other measures, such as global revenue, may differ.
Are Big Four Accounting Firms Better for Small Businesses?
Not always. Big Four firms can be useful for complex audits and international operations, while smaller or mid-tier firms may offer services better suited to a small business’s budget and industry. Compare experience, availability, and fees.
What Services Do the Top Accounting Firms Offer?
Top accounting firms commonly provide audits, tax preparation and planning, financial reporting, risk management, and business consulting. Some also offer bookkeeping, payroll, and outsourced accounting. Available services vary, so confirm each firm’s scope before hiring.
How Much Does It Cost to Hire an Accounting Firm?
Fees vary with business size, location, service complexity, and whether you need ongoing support or a one-time project. Request written proposals from several firms, check what’s included, and ask about minimum fees or extra charges.
Conclusion
The top 25 accounting firms in the USA help businesses manage taxes, financial reporting, audits, and long-term financial planning. While larger firms offer extensive resources and international expertise, the highest revenue does not always mean the best choice for every business.
When selecting an accounting firm, consider your business needs, industry experience, services, and budget. Modern accounting technology also plays an important role in improving collaboration, productivity, and secure access to financial data.
For accounting firms looking to simplify remote work, QBClouds offers cloud hosting solutions that support flexible access to desktop accounting software.
