Accounting consulting firms provide expert guidance to businesses facing complex financial and regulatory challenges. Whether it's preparing for a financial audit, ensuring compliance with evolving tax laws, or navigating Sarbanes-Oxley regulations, these firms play a crucial role in helping organizations maintain transparency and efficiency in their financial operations.
For aspiring consultants, securing a position at a top accounting consulting firm can be a significant career milestone. But with so many firms to choose from, which ones stand out? Which firms have the strongest reputations, and where will you find the best fit? To help in your search, we’ve ranked the top 10 accounting consulting firms below.
Top Accounting Consulting Firms
1. PricewaterhouseCoopers (PwC)
PwC, headquartered in London with its U.S. base in New York City, is one of the world’s largest professional services firms, operating in over 150 countries with a workforce exceeding 360,000 professionals. As a member of the "Big Four," PwC provides industry-leading expertise in audit and assurance, tax, and consulting services. The firm is widely recognized for its role in helping businesses navigate complex financial reporting and regulatory compliance challenges. With a strong presence across industries, PwC serves major global clients, including Bank of America, Goldman Sachs, IBM, and Ford Motor Company, ensuring financial integrity and strategic advisory at scale.
PwC continues to be a leader in driving innovation within accounting and professional services. The firm has heavily invested in technology-driven solutions, including cloud-based financial services, automation, and advanced data analytics, to enhance client operations and decision-making. Additionally, PwC’s commitment to sustainability, corporate governance, and digital transformation has positioned it as a trusted advisor in an evolving financial landscape. By integrating technology with deep industry expertise, PwC remains at the forefront of shaping the future of accounting and consulting services.
2. Deloitte
Deloitte, headquartered in London with its U.S. base in New York City, is one of the largest and most influential professional services firms globally. Established in 1845, the firm has expanded to offer a full suite of services, including audit and assurance, advisory, risk management, and tax consulting. With over 80 offices across the U.S., Deloitte serves a diverse range of industries, working with major clients such as MetLife, Morgan Stanley, Berkshire Hathaway, The Blackstone Group, and Microsoft. As a member of the "Big Four," Deloitte is known for its deep industry expertise and ability to provide strategic financial solutions at scale.
A leader in innovation, Deloitte integrates advanced technologies into its consulting and accounting services, offering data-driven insights and digital transformation strategies to help clients address complex business challenges. The firm's global reach and commitment to excellence have positioned it as a trusted advisor for businesses navigating regulatory changes, risk management, and financial optimization. By combining a forward-thinking approach with a strong foundation in traditional accounting services, Deloitte continues to shape the future of professional services worldwide.
3. KPMG
KPMG, headquartered in Amstelveen, Netherlands, with its U.S. base in New York City, is a global professional services firm operating in 145 countries. As a key player in the "Big Four," KPMG provides audit, tax, and advisory services to major clients such as PepsiCo, Accenture, Halliburton, Citigroup, and Wells Fargo. With a strong presence in the U.S., including a notable office in Houston, the firm is known for its expertise in financial reporting, risk management, and regulatory compliance. KPMG’s emphasis on teamwork and long-term client relationships has made it a trusted advisor in the accounting consulting industry.
Beyond its core services, KPMG has established itself as a leader in digital transformation and data-driven decision-making, integrating advanced analytics and technology into its financial solutions. The firm’s commitment to quality, integrity, and professionalism ensures its continued success in helping businesses navigate complex financial landscapes. By fostering a collaborative culture and prioritizing innovation, KPMG remains a top choice for organizations seeking comprehensive audit and advisory services worldwide.
4. Ernst & Young (EY)
EY, headquartered in London with its U.S. base at One Manhattan West in New York City, is one of the "Big Four" accounting firms, offering a broad range of professional services. With expertise in assurance, tax advisory, and digital strategy, EY serves major global clients, including Hewlett Packard, Verizon, AT&T, Hilton, and General Motors. The firm has built a strong reputation for its work across various industries, such as transportation, hospitality, real estate, and technology. EY’s focus on sustainability and innovation ensures that clients receive forward-thinking solutions to navigate financial and regulatory complexities.
A key differentiator for EY is its strategy consulting division, EY-Parthenon, which enhances the firm’s ability to provide comprehensive business advisory services. By integrating digital transformation, risk management, and financial consulting, EY helps organizations optimize performance and adapt to an evolving economic landscape. The firm’s commitment to technological advancements and sustainability initiatives has solidified its position as a trusted advisor for businesses worldwide, offering tailored solutions to meet the needs of an increasingly complex global market.
5. Mazars
Mazars, headquartered in Paris with its U.S. base in New York City, is a globally recognized audit, tax, and advisory firm operating in over 100 countries. With more than 40,000 professionals, the firm serves a diverse range of clients, including AIG, Goldman Sachs, Donald Trump, Peugeot, and Publicis. In 2023, Mazars strengthened its U.S. presence through a strategic partnership with FORVIS, forming the Forvis Mazars network. This collaboration has expanded the firm's reach and reinforced its position as a leading accounting and professional services provider worldwide.
Known for its technical excellence and commitment to quality service, Mazars delivers tailored financial solutions across various industries. The firm combines deep expertise in regulatory compliance, risk management, and business strategy with a client-centric approach. Its growing emphasis on digital transformation and sustainability ensures that Mazars remains a competitive force in the evolving financial landscape. With a reputation for precision and innovation, the Forvis Mazars network continues to be a trusted partner for businesses seeking reliable accounting and advisory services.
6. Baker Tilly
Baker Tilly, headquartered in Chicago, is a top 10 accounting firm in the United States, specializing in advisory, tax, and assurance services. The firm has grown significantly through strategic mergers and acquisitions, strengthening its national and global presence. Notable expansions include its 2020 merger with Squar Milner and the 2021 acquisition of Margolin, Winer & Evens, which have enhanced its capabilities and reach. With a workforce of over 43,000 professionals operating across 148 territories, Baker Tilly provides comprehensive financial solutions to businesses across various industries.
Known for its commitment to client service and industry expertise, Baker Tilly offers tailored strategies to help organizations navigate financial complexities. The firm leverages cutting-edge technology and data-driven insights to support clients in achieving regulatory compliance, optimizing tax strategies, and improving operational efficiency. With its strong foundation in assurance and advisory services, Baker Tilly continues to expand its influence in the accounting industry, delivering innovative solutions to businesses in an evolving financial landscape.
7. Grant Thornton
Grant Thornton, headquartered in Chicago, is a leading professional services firm specializing in tax and audit advisory for public interest and public sector entities. With a strong presence in the public sector, the firm works closely with all three branches of the U.S. government, serving key clients such as the U.S. House of Representatives, AmeriCorps, and the Department of Labor. In January 2025, Jim Peko was appointed CEO of Grant Thornton Advisors LLC, bringing extensive strategic leadership to the firm as it continues expanding its influence in federal financial management and compliance.
Grant Thornton’s expertise in navigating complex government regulations and financial oversight makes it a trusted partner for public sector organizations. The firm’s rapid growth, coupled with its emphasis on innovation and strategic consulting, has reinforced its reputation as a leader in public affairs and federal business transactions. With competitive compensation packages and a focus on attracting top talent, Grant Thornton remains a premier choice for professionals seeking careers in government-focused financial advisory and audit services.
8. Accenture
Accenture, headquartered in Dublin with its U.S. base in Chicago, is a global professional services firm specializing in consulting, technology, and outsourcing. While its services extend beyond traditional accounting, Accenture has a dedicated finance and accounting division that helps organizations transform financial operations into strategic assets through data-driven and intelligent operating models. The firm serves major clients across industries, including Cardinal Health, Best Buy, Barclays, CNH Industrial, and Adidas, with a strong emphasis on technology-driven solutions. Accenture’s ability to integrate digital transformation with financial strategy has made it a leader in modernizing business operations.
Known for its innovation and forward-thinking approach, Accenture leverages automation, AI, and advanced analytics to optimize financial processes and improve operational efficiency. The firm’s substantial presence in the United States and its global reach allow it to provide tailored solutions that address industry-specific financial challenges. With a commitment to delivering measurable value and enhancing business agility, Accenture continues to be a trusted partner for organizations seeking cutting-edge finance and accounting solutions within a rapidly evolving digital landscape.
9. RSM
RSM, headquartered in London, is a leading global network of professional services firms specializing in audit and assurance, advisory, risk, and tax services. Operating in over 120 countries with approximately 57,000 professionals, RSM has built a strong reputation for providing tailored financial solutions. The firm focuses primarily on serving middle-market companies, working closely with clients such as Shurtape, Gay Lea Foods, The Paper Store, and Comvest Partners. With a client-centric approach, RSM delivers strategic insights that help businesses navigate complex financial landscapes while ensuring compliance and operational efficiency.
Renowned for its commitment to understanding client needs, RSM offers personalized advisory services that go beyond traditional accounting. The firm integrates technology-driven solutions and data analytics to optimize financial performance and mitigate risks. Its dedication to innovation, combined with deep industry expertise, has positioned RSM as a trusted advisor for growing businesses. By continuously expanding its global presence and enhancing service offerings, RSM remains a top choice for middle-market organizations seeking expert financial guidance and business strategy support.
10. BDO
BDO, headquartered in Chicago, is a global professional services firm specializing in audit and assurance, advisory, risk management, and tax services. As the fifth-largest accounting network worldwide, BDO serves over 400 clients across multiple industries, including major companies like Apple, Facebook, Fidelity, and Tyson Foods. The firm’s strong international presence and industry-specific expertise allow it to provide tailored financial solutions that help organizations navigate complex regulatory environments and optimize their financial operations.
Known for its commitment to client service, BDO combines deep technical expertise with innovative approaches to address evolving business challenges. The firm leverages advanced analytics, digital transformation strategies, and risk management frameworks to enhance operational efficiency for its clients. By continuously expanding its global network and enhancing service offerings, BDO has solidified its reputation as a trusted partner for businesses seeking high-quality accounting and consulting services.
Conclusion
The accounting consulting industry is home to some of the most influential firms in the world, providing essential audit, tax, advisory, and risk management services. Whether working with multinational corporations, public institutions, or middle-market businesses, these firms drive financial transparency, regulatory compliance, and strategic growth. For professionals seeking a career in consulting, the top accounting firms offer unparalleled opportunities to develop expertise, work with high-profile clients, and contribute to the evolving landscape of global finance.