Top Accounting Firms in the USA

Top accounting firms in USA

Managing your finances in Australia can feel like a daunting task, especially with constantly shifting tax regulations, compliance demands, and the importance of smart financial planning. 

Whether you're a startup in need of reliable bookkeeping, a growing business aiming to optimize your tax strategy, or a large corporation seeking expert advice, finding the right accounting partner is essential.

This guide offers a detailed look at some of Australia’s leading accounting firms, highlighting their core services and providing tips on how to choose the best one for your unique needs. 

With this information, you’ll be equipped to make a confident decision that aligns with your financial goals and sets you up for long-term success.

Top Accounting Firms in the USA

Before exploring the details of each firm, here’s a quick look at some of the leading accounting firms in the USA, known for their expertise, industry specialization, and tailored financial services:

  • BDO – Global powerhouse providing tax, audit, and advisory services.
  • Mayer Hoffman McCann/CBIZ – Known for middle-market accounting, tax, and consulting.
  • Grant Thornton – Offers audit, tax, and advisory with a strong focus on innovation.
  • RSM – Specializes in serving middle-market businesses with tailored financial solutions.
  • KPMG – A Big Four firm offering audit, tax, and consulting on a global scale.
  • Ernst & Young (EY) – Leading the way in digital transformation and financial advisory.
  • PwC (PricewaterhouseCoopers) – Trusted for strategic financial guidance and compliance.
  • Detroit Accounting Company – Boutique firm offering personalized business and tax solutions.

Detailed Breakdown of Each Firm

In this section, we’ll take a closer look at each of the top accounting firms in USA. Every firm will have its own dedicated overview, broken down into the following key areas:

BDO USA

BDO USA is one of the nation's most respected accounting and advisory firms, providing audit, tax, and consulting services to businesses of all sizes. 

With over 75 offices nationwide and a workforce of 12,000+ professionals, BDO delivers comprehensive financial and strategic solutions.

As a member of BDO International, a global network spanning 160+ countries, the firm combines local expertise with international reach, ensuring clients receive world-class service tailored to their specific needs. 

In 2023, BDO USA became the first large accounting firm to implement an Employee Stock Ownership Plan (ESOP), reinforcing its people-first culture and commitment to shared success.

Services Offered

  • Audit & Assurance – Independent audits, risk assessments, compliance reporting, and internal control evaluations.
  • Tax Services – Business tax planning, international tax compliance, state and local tax advisory, and transfer pricing.
  • Advisory Services – Risk management, financial restructuring, transaction support, and corporate transformation.
  • BDO Digital – AI-driven analytics, cybersecurity, cloud solutions, IT strategy, and automation consulting.
  • Sustainability & ESG – ESG strategy development, compliance reporting, climate risk assessment, and corporate sustainability consulting.

Notable Features & Strengths

  • Industry-Leading Employee Ownership Model – BDO USA is the first large accounting and advisory firm to implement an Employee Stock Ownership Plan (ESOP), ensuring employees have a direct stake in the firm’s success, enhancing engagement, and driving long-term value.
  • Global Reach with Local Expertise – As part of BDO International, the firm provides clients with access to a global network of professionals across 160+ countries, ensuring seamless cross-border advisory and compliance support while maintaining a personalized, relationship-driven approach.
  • Comprehensive & Integrated Services – BDO offers a full spectrum of financial, tax, and advisory services, from traditional audit and tax solutions to cutting-edge digital transformation and ESG consulting, allowing businesses to receive holistic and strategic guidance.
  • Commitment to Innovation & Digital Transformation – Through BDO Digital, the firm leverages AI, data analytics, automation, and cybersecurity solutions to help businesses modernize operations, improve efficiency, and stay ahead in an increasingly technology-driven market.
  • Sustainability & ESG Leadership – BDO integrates environmental, social, and governance (ESG) principles into both its own operations and client advisory services, providing expertise in sustainable business strategies, ESG compliance, and climate risk assessment.
  • Industry-Specific Knowledge & Tailored Solutions – BDO takes an industry-first approach, delivering customized financial and advisory services to key sectors such as financial services, healthcare, manufacturing, private equity, and retail, ensuring clients receive specialized expertise to navigate industry-specific challenges.
  • Recognized Employer & Inclusive Workplace – BDO has been recognized as a Top 75 Company for Executive Women, a National Best & Brightest Company to Work For, and one of the 100 Best Companies for Working Parents. The firm prioritizes diversity, equity, and inclusion (DEI), fostering a collaborative and flexible work environment that supports employee success.

Mayer Hoffman McCann

CBIZ CPAs P.C., formerly Mayer Hoffman McCann P.C. (MHM), is a leading independent CPA firm headquartered in Kansas City, Missouri. 

With over 35 offices nationwide, CBIZ CPAs provides audit and attest services to businesses, nonprofits, and government entities. 

In August 2024, the firm rebranded to CBIZ CPAs P.C. to align more closely with CBIZ, Inc., its business consulting and financial services partner. 

As a member of Kreston Global, CBIZ CPAs offers both local expertise and international resources, ensuring tailored solutions for clients across industries.

Services Offered

  • Audit & Assurance – Financial statement audits, reviews, compilations, and agreed-upon procedures.
  • Employee Benefit Plan Audits – Audits ensuring compliance with regulatory requirements for benefit plans.
  • System and Organization Controls (SOC) Reports – Evaluations of internal controls within service organizations.
  • Attest & Other Services – Specialized attest engagements, including litigation support and due diligence.

CBIZ CPAs serves industries such as financial services, manufacturing, private equity, real estate, retail, technology, healthcare, and construction, providing customized guidance based on sector-specific challenges.

Notable Features & Strengths

  • Established Legacy & Trusted Expertise – With a history dating back to 1954, CBIZ CPAs has built a reputation for high-quality audit and attest services.
  • Strategic Partnership with CBIZ, Inc. – The firm collaborates with CBIZ, Inc. to provide comprehensive business, tax, and financial solutions, offering clients a one-stop advisory experience.
  • National Presence with Personalized Service – With over 35 offices nationwide, CBIZ CPAs delivers big-firm capabilities while maintaining a client-focused approach.
  • Global Reach through Kreston Global Membership – As a Kreston Global member, CBIZ CPAs connects clients to international expertise and cross-border advisory services.
  • Industry-Specific Knowledge – The firm’s industry-specialized teams offer deep sector insights tailored to the unique needs of various industries.
  • Commitment to Quality & Compliance – CBIZ CPAs is licensed in all 50 states and is a member of the AICPA’s Center for Audit Quality, reinforcing its commitment to excellence and regulatory compliance.

Grant Thornton

Grant Thornton is a leading professional services firm providing audit, tax, and advisory solutions through Howladar Yunus & Co. and Grant Thornton Consulting Bangladesh Limited. 

Established in 1970, the firm has grown into a trusted name in the industry, serving businesses across multiple sectors with a team of 8 partners, 2 directors, and over 150 professionals.

As a member of Grant Thornton International, a global network spanning 140+ countries and 56,000+ professionals, the firm combines local market expertise with global resources. 

This enables Grant Thornton Bangladesh to offer comprehensive, high-quality solutions that help businesses achieve sustainable growth while navigating complex regulatory environments.

Services Offered

  • Audit & Assurance – Financial statement audits, IFRS conversions, financial statement reviews, and reporting on internal controls.
  • Tax Services – Corporate tax advisory, international tax structuring, VAT compliance, transfer pricing, and tax planning.
  • Advisory Services – Business risk consulting, forensic investigations, recovery and reorganization, and transactional advisory.
  • Cybersecurity & Risk Management – Cyber risk assessments, security audits, compliance reporting, and fraud detection.
  • Outsourcing & Payroll Solutions – Payroll management, bookkeeping, business process outsourcing, and HR consulting.

Notable Features & Strengths

  • Decades of Trusted Expertise – With over 50 years of experience, Grant Thornton Bangladesh has built a reputation for delivering high-quality professional services, helping businesses achieve operational excellence and regulatory compliance.
  • Global Network with Local Expertise – As part of Grant Thornton International, the firm provides global insights and cross-border solutions, ensuring clients benefit from international best practices while receiving localized support.
  • Comprehensive & Customized Solutions – The firm offers a full spectrum of financial, tax, and advisory services, ensuring businesses receive tailored strategies to drive growth and efficiency.
  • Technology-Driven Advisory & Cybersecurity Services – Grant Thornton Bangladesh leverages advanced digital tools, cybersecurity solutions, and data-driven insights to help businesses mitigate risks and strengthen security frameworks.
  • Industry-Specific Knowledge & Compliance Expertise – The firm's dedicated industry teams provide specialized advisory services designed to address regulatory complexities and sector-specific challenges, ensuring businesses remain compliant and competitive.
  • Commitment to Innovation & Sustainable Growth – The firm integrates environmental, social, and governance (ESG) principles into advisory services, supporting businesses in adopting sustainable and ethical business practices.

RSM US LLP

RSM US LLP is a leading professional services firm providing audit, tax, and consulting solutions tailored to the middle market. 

With a history dating back to 1926, RSM has grown into one of the most trusted names in the industry, serving growth-oriented businesses across the U.S. and internationally.

As a member of RSM International, a global network spanning over 120 countries, RSM combines local expertise with global capabilities to help clients navigate complex business environments. 

By aligning people, processes, and technology, RSM delivers tailored, innovative solutions that empower clients to thrive in an evolving economic landscape.

Services Offered

  • Audit & Assurance – Financial statement audits, employee benefit plan audits, internal control assessments, and risk management.
  • Tax Services – Business tax planning, international tax advisory, estate and gift tax planning, and compliance services.
  • Consulting Services – Digital transformation, AI strategy, M&A advisory, regulatory compliance, and operational optimization.
  • Technology & Data Solutions – Cloud services, cybersecurity, automation, blockchain advisory, and AI-driven analytics.
  • Family Office & Private Client Services – Wealth management, estate planning, tax structuring, and financial consulting.

Notable Features & Strengths

  • Middle Market Expertise & Client-Focused Approach – RSM specializes in serving middle-market businesses, offering personalized advisory services designed to drive growth, efficiency, and resilience.
  • Global Network with Local Expertise – As a member of RSM International, the firm provides seamless global solutions, ensuring clients have access to cross-border expertise, regulatory insights, and international market strategies.
  • Comprehensive & Tailored Business Solutions – RSM integrates audit, tax, and consulting services, allowing clients to streamline operations, enhance financial performance, and mitigate risk under one advisory platform.
  • Technology & Innovation-Driven Services – With a strong focus on digital transformation, AI, and automation, RSM helps businesses leverage emerging technologies to improve efficiency and stay ahead in a rapidly evolving market.
  • ESG & Sustainability Leadership – The firm is committed to environmental, social, and governance (ESG) practices, providing clients with strategic guidance on sustainability, corporate responsibility, and regulatory compliance.
  • Award-Winning Workplace & Culture of Inclusion – RSM has been recognized for its commitment to diversity, equity, and inclusion (DEI), fostering a collaborative, people-first culture that empowers employees and enhances client relationships.

KPMG

KPMG is a global leader in professional services, offering audit, tax, and advisory solutions to businesses worldwide. 

With a presence in 142 countries and over 275,000 professionals, KPMG provides insight-driven strategies and innovative solutions tailored to today’s complex business environment.

By integrating cutting-edge technology, industry expertise, and a values-driven culture, KPMG helps clients navigate regulatory, financial, and operational challenges with confidence. 

As a trusted advisor to governments, corporations, and nonprofits, KPMG plays a critical role in driving business growth, enhancing risk management, and fostering sustainability.

Services Offered

  • Audit & Assurance – Independent audits, financial statement reviews, risk assessments, and corporate governance advisory.
  • Tax Services – Business tax compliance, transfer pricing, global mobility tax solutions, and tax policy advisory.
  • Advisory Services – Business strategy consulting, M&A advisory, risk management, and operational transformation.
  • Legal Services – Corporate law advisory, compliance and regulatory support, and dispute resolution.
  • AI & Digital Solutions – AI-driven business solutions, digital transformation strategies, and cloud-based analytics.

Notable Features & Strengths

  • Global Network with Local Expertise – With operations in 142 countries, KPMG offers seamless, cross-border advisory and regulatory compliance solutions, ensuring businesses receive integrated global support.
  • Comprehensive & Multi-Disciplinary Approach – The firm’s audit, tax, and advisory services are designed to work together, allowing clients to address financial, legal, and operational challenges holistically.
  • Technology-Driven Innovation – KPMG leverages AI, automation, and cloud-based tools to provide data-driven insights, enhance cybersecurity, and streamline operations, ensuring clients stay ahead in an evolving digital landscape.
  • Commitment to ESG & Sustainability – The firm integrates environmental, social, and governance (ESG) principles into its advisory services, helping clients develop responsible business strategies, manage climate risks, and enhance corporate transparency.
  • Industry-Specific Knowledge & Customized Solutions – KPMG's sector-focused teams offer specialized advisory services, ensuring clients receive strategic guidance tailored to their industry's evolving trends and regulations.
  • Values-Driven Culture & Inclusive Workplace – With a strong focus on diversity, equity, and inclusion (DEI), KPMG fosters an inclusive environment, enabling professionals to thrive while delivering best-in-class service to clients.

With its global presence, deep industry expertise, and commitment to innovation, KPMG remains a trusted partner for businesses, governments, and organizations seeking strategic guidance and long-term growth solutions.

Ernst & Young (EY)

Ernst & Young (EY) is a global leader in professional services, specializing in assurance, consulting, strategy, tax, and transactions. 

With a presence in over 150 countries and a workforce of more than 400,000 professionals, EY is dedicated to helping businesses navigate change, drive innovation, and build trust in financial markets.

Guided by its mission of "Building a better working world," EY supports entrepreneurs, corporations, and governments in addressing complex challenges through technology-driven solutions, regulatory expertise, and strategic insights. 

By investing in people, digital transformation, and sustainability, EY enables organizations to achieve long-term success and sustainable growth.

Services Offered

  • Assurance Services – Financial audits, risk management, corporate governance, and compliance reporting.
  • Consulting Services – Business transformation, digital strategy, AI integration, and operational efficiency.
  • Strategy & Transactions – M&A advisory, corporate restructuring, valuation services, and investment strategy.
  • Tax Services – International tax planning, transfer pricing, indirect tax compliance, and policy advisory.
  • Legal Advisory – Corporate law, regulatory compliance, dispute resolution, and business restructuring.
  • Sustainability & ESG Consulting – Climate risk management, responsible investing, and sustainability reporting.

Notable Features & Strengths

  • Global Reach with Local Expertise – With a network spanning over 150 countries, EY delivers cross-border solutions, ensuring clients receive integrated regulatory, financial, and operational guidance.
  • Comprehensive, Multi-Disciplinary Approach – By combining expertise in assurance, consulting, tax, and legal advisory, EY provides holistic strategies that address business challenges from every angle.
  • Technology & Innovation Leadership – EY invests heavily in AI, blockchain, cloud computing, and data analytics, empowering businesses to harness digital transformation and enhance decision-making.
  • Commitment to Sustainability & ESG – The firm actively supports businesses in developing environmentally and socially responsible strategies, promoting long-term corporate sustainability and ethical governance.
  • People-Centric Culture & Leadership Development – Through initiatives like the EY Tech MBA and EY Badges, the firm prioritizes continuous learning and professional growth, ensuring top-tier expertise for its clients.
  • Industry-Specific Knowledge & Tailored Advisory – EY’s sector-focused teams provide deep market insights, regulatory expertise, and strategic guidance, helping clients stay competitive and future-ready.

PricewaterhouseCoopers (PwC)

PricewaterhouseCoopers (PwC) is one of the largest global professional services firms, offering expertise in assurance, tax, and advisory services. 

With a presence in 149 countries and over 370,000 professionals, PwC provides innovative, technology-driven solutions that help organizations create value, navigate complexities, and build trust in an ever-evolving business landscape.

Committed to helping businesses transform and achieve sustainable success, PwC partners with Fortune 500 companies, government entities, and emerging enterprises to drive growth, operational efficiency, and long-term resilience. 

Its approach is centered on trust, transparency, and delivering high-quality solutions tailored to meet the diverse needs of global industries.

Services Offered

  • Audit & Assurance – Independent audits, financial reporting, regulatory compliance, and corporate governance advisory.
  • Tax Advisory – International tax strategy, transfer pricing, indirect tax compliance, and risk management.
  • Consulting Services – Business transformation, digital innovation, AI and automation, and workforce optimization.
  • Deals & M&A Advisory – Mergers and acquisitions, due diligence, valuations, and business restructuring.
  • Sustainability & ESG Consulting – Climate risk management, sustainable finance, and corporate responsibility reporting.
  • Forensic Services – Fraud investigations, dispute resolution, forensic accounting, and risk assessment.

Notable Features & Strengths

  • Global Presence with Local Expertise – With offices in 149 countries, PwC provides integrated, cross-border advisory services, ensuring seamless global compliance and regulatory support.
  • End-to-End Business Solutions – PwC’s multi-disciplinary approach integrates assurance, tax, consulting, and deal advisory, enabling organizations to address financial, legal, and strategic challenges holistically.
  • Technology & Innovation Leadership – The firm leverages AI, blockchain, data analytics, and cloud solutions to help businesses modernize operations, improve cybersecurity, and gain real-time business insights.
  • Commitment to ESG & Sustainable Growth – PwC helps companies navigate environmental, social, and governance (ESG) challenges, providing solutions that align business success with corporate responsibility.
  • Industry-Specific Expertise & Tailored Strategies – With sector-focused teams, PwC delivers deep market insights and strategic advisory, ensuring businesses stay resilient in a rapidly evolving economy.
  • People-First Culture & Leadership Development – PwC prioritizes diversity, equity, and inclusion (DEI) while investing in learning programs and leadership development, ensuring top-tier talent and expertise for clients.

Detroit Accounting Company

Detroit Accounting Company is a trusted partner for small and mid-sized businesses, specializing in accounting, tax, and consulting services. 

Founded by Andrew J. Johnson, a licensed CPA in Michigan, the firm is committed to providing accurate financial insights and strategic business guidance to help companies grow, optimize operations, and reduce tax liabilities.

With a client-focused approach and deep industry expertise, Detroit Accounting Company offers tailored financial solutions, empowering businesses with data-driven decision-making and long-term financial stability.

Services Offered

  • Business Formation & Planning – Establishing LLCs or corporations, business plan development, startup cost analysis, and competitive market assessment.
  • Financial Statements & Bookkeeping – Monthly bookkeeping, preparation of financial statements, tax projections, and financial reporting.
  • Tax Planning & Compliance – Routine tax projections, year-end tax preparation, and strategic tax-saving recommendations.
  • Growth & Operational Strategy – Business process optimization, financial analysis, budgeting, and sustainable growth strategies.
  • Due Diligence & Business Valuation – Comprehensive financial reviews for acquisitions, investor presentations, and pro forma financial statement preparation.

Notable Features & Strengths

  • Personalized, Hands-On Approach – Focuses on building long-term client relationships, providing one-on-one consultations and customized financial strategies.
  • Experienced Leadership & Skilled Team – Led by Andrew J. Johnson, CPA, with a team of specialized professionals in accounting, bookkeeping, HR, and marketing, ensuring well-rounded business support.
  • Tailored Financial Solutions for Small Businesses – Specializes in affordable, scalable accounting and tax services, designed for entrepreneurs, startups, and privately owned companies.
  • Industry Expertise Across Multiple Sectors – Works with businesses in diverse industries, providing market-specific financial insights and strategic growth planning.
  • Technology-Driven Accounting & Tax Solutions – Utilizes modern financial tools and cloud-based accounting systems to ensure accuracy, efficiency, and real-time financial data access.
  • Comprehensive Business Advisory Services – Beyond accounting, the firm assists with business formation, marketing strategy, competitive analysis, and infrastructure development, ensuring end-to-end business support.

How to Select the Right Accounting Firm for Your Business

Choosing the right accounting firm is a critical decision that can impact the financial health and strategic direction of your business. 

Whether you need basic bookkeeping or comprehensive financial advisory, understanding what to look for in an accounting firm will help ensure you find the right fit.

Understand Your Business Requirements

Before selecting an accounting firm, it's important to define what level of financial support your business requires. 

Are you looking for basic bookkeeping, tax compliance, or strategic financial guidance? Different firms cater to different needs, so identifying your specific requirements is key.

Basic Bookkeeping vs. Full Financial Advisory Services

Some businesses only need bookkeeping services, such as tracking expenses, managing invoices, and reconciling bank accounts. 

Others require more advanced financial services, including budget forecasting, tax strategy, and business valuation.

  • Basic Bookkeeping: Ideal for small businesses or startups managing daily financial records.
  • Tax Planning & Compliance: Ensures businesses remain compliant with tax laws while minimizing liabilities.
  • Financial Advisory Services: Helps companies with long-term planning, cash flow management, and profitability analysis.

Industry Specialization (Tech, Retail, Healthcare, Startups, etc.)

Accounting needs vary by industry, so choosing a firm with expertise in your sector can provide valuable insights.

  • Tech Companies: Need firms that understand R&D tax credits, stock options, and international taxation.
  • Retail Businesses: Require expertise in inventory management, sales tax compliance, and profit margin analysis.
  • Healthcare Providers: Benefit from accountants who understand medical billing, insurance reimbursements, and compliance regulations.

Small Business vs. Large Accounting Firm: Which One Should You Choose?

Deciding between a boutique accounting firm and a large, well-known firm depends on the size of your business and the level of service you need.

Factor

Boutique Firm

Major Firm

Personalized Service

High

Moderate

Industry-Specific Expertise

Often specialized

Broad but may lack niche expertise

Cost

Lower

Higher

Technology & Resources

Moderate

Advanced

Scalability

Best for small-to-mid-sized businesses

Ideal for large corporations

Cost vs. Service Depth Comparison

  • Smaller firms tend to have lower fees and a relationship-driven approach, making them ideal for startups and small businesses.
  • Larger firms provide extensive advisory services and cutting-edge technology, which may be better suited for mid-to-large enterprises.

Key Factors to Consider

Once you’ve identified your business needs and the type of firm that suits you, focus on these key factors to make an informed decision.

Pricing Structures (Fixed Fees vs. Hourly Rates)

Different firms bill differently, so it’s crucial to understand their pricing model.

  • Fixed Fee Structure: You pay a set amount for services each month—ideal for businesses looking for predictability in costs.
  • Hourly Rates: You are billed based on time spent, which may be cost-effective for smaller projects but can add up quickly for ongoing services.

Accounting Software Compatibility (Do They Use Modern Cloud Solutions?)

In today’s digital world, accounting firms should utilize cloud-based platforms for real-time financial tracking and automation. Ask whether they support:

  • QuickBooks, Xero, or NetSuite for cloud-based accounting.
  • AI-driven financial reporting tools for better forecasting.
  • Integration with payment systems and CRMs to streamline operations.

Customer Support & Accessibility (Will You Get Personalized Service?)

The level of customer support and responsiveness can significantly impact your experience with an accounting firm.

  • Do they offer a dedicated accountant?
  • Can you reach them easily via email, phone, or online portals?
  • How frequently will they provide financial reports and tax planning updates?

A firm that offers proactive communication and strategic financial guidance can help your business stay ahead of financial challenges.

Pro Tip: Use Convert My Bank Statement, to convert PDF bank Statements to Excel or CSV.

Conclusion

Selecting the right accounting firm is a crucial step in ensuring your business’s financial health and strategic success. 

Whether you’re a startup seeking bookkeeping support, a growing business in need of tax planning, or a large corporation requiring comprehensive advisory services, the right accounting partner can provide tailored solutions to help you thrive. 

By considering factors such as industry expertise, service offerings, pricing structures, and technological capabilities, you can make an informed decision that aligns with your business goals.

FAQs

1. Should I choose a small or large accounting firm?

Small firms offer personalized service and lower costs, while large firms provide scalability and specialized expertise. Choose based on your business size and financial needs.

2. What’s the best way to streamline bookkeeping and tax prep?

Use cloud-based accounting software and keep accurate records. ConvertMyBankStatement.com can help convert bank statements into structured financial data for easier tax filing.

3. How do accounting firms typically charge for services?

Firms may charge a fixed monthly fee for ongoing services or bill hourly for specific tasks. Ensure pricing transparency to avoid hidden costs.

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