The 100 largest accounting firms in North America (2026 list)

This selection of accounting firms in North America showcases large, established players in professional and financial services. Many are global entities with significant employee counts, indicating their extensive reach and comprehensive service offerings. The firms listed primarily offer audit, tax, and advisory services.

Key firms include Deloitte, a global professional services firm, and KPMG, which provides audit, tax, and advisory services. RSM US LLP focuses on middle-market clients for assurance, tax, and consulting, while H&R Block specializes in tax preparation. A notable pattern is the concentration of headquarters in Chicago, with RSM US LLP, Grant Thornton (US), BDO USA, Baker Tilly US, and Crowe all based there.

#	Company	Industry	Headquarters	Employees	Founded
1	Deloitte deloitte.com Global professional services firm empowering diverse talents to drive progress for clients worldwide through advice, action, and integrity	Business Consulting and Services	🇺🇸 Worldwide	526,765	1845
2	KPMG kpmg.com Global network of professional firms offering Audit, Tax and Advisory services in 146 countries Industry-focused professionals delivering value with clear vision and defined values	Accounting	🇺🇸 Toronto	265,000	n/a
3	KPMG US kpmg.com Provides audit, tax, and advisory services with extensive US presence, leveraging size and agility to meet evolving client needs.	Financial Services	🇺🇸 New York	53,517	n/a
4	RSM US LLP rsmus.com Provider of assurance, tax, and consulting services focused on middle market clients with a global presence and professional development culture.	Accounting	🇺🇸 Chicago	19,700	1926
5	H&R Block hrblock.com H&R Block provides tax preparation services worldwide, focusing on building long-lasting relationships through care, innovation, and a people-first approach	Financial Services	🇺🇸 Kansas City	16,116	1955
6	PwC Acceleration Centers pwc.com Global talent hubs delivering digital, innovative, and collaborative client support across multiple countries, enhancing quality and driving new ways of working.	Professional Services	🇺🇸	14,116	n/a
7	Grant Thornton (US)grantthornton.com Provides independent audit, tax, and advisory services through a global network, focusing on quality, trust, and strong client relationships.	Professional Services	🇺🇸 Chicago	11,518	1924
8	BDO USA bdo.com Providing middle market leaders with assurance, tax, and advisory services focused on cultivating a people-centered, growth-oriented corporate culture.	Accounting	🇺🇸 Chicago	11,182	1910
9	Baker Tilly US bakertilly.com A leading advisory CPA firm with a coast-to-coast and global presence, part of Baker Tilly International network with 43,000 professionals	Accounting	🇺🇸 Chicago	10,594	n/a
10	KPMG Canada kpmg.com Providing audit, tax, and advisory services to public, private, nonprofit, and public sector organizations across Canada with professionalism.	Financial Services	🇨🇦 Toronto	10,017	n/a
11	MNP mnp.ca A leading national accounting, tax, and business consulting firm in Canada, offering personalized strategies and partner-led engagements to help organizations succeed	Accounting	🇨🇦 Calgary	9,798	n/a
12	CLA (CliftonLarsonAllen)claconnect.com A company providing industry-focused wealth advisory, outsourcing, audit, tax, and consulting services with a global presence, emphasizing personalized client relationships	Accounting	🇺🇸	9,503	2012
13	Crowe crowe.com A global firm providing public accounting, consulting, and technology services, helping clients make smart decisions and uncover hidden opportunities worldwide	Professional Services	🇺🇸 Chicago	9,411	n/a
14	CBIZ cbiz.com A national firm providing financial and employee business services, including accounting, employee benefits, risk consulting, valuation, and investment services	Business Consulting and Services	🇺🇸 Independence	8,651	1996
15	Jackson Hewitt Tax Service Inc.jacksonhewitt.com A fast-growing tax preparation company focused on providing clients with fast, convenient, and low-cost access to their tax returns	Financial Services	🇺🇸 Sarasota	8,648	1983
16	Liberty Tax libertytax.com A fast-growing income tax preparation franchise offering friendly service, accuracy, and a money back guarantee with a network of over 4,000 offices	Accounting	🇺🇸 Hurst	7,554	1997
17	Ryan ryan.com Global tax services provider with award-winning software, offering federal, state, local, and international tax services, advocacy, compliance, and technology solutions	Financial Services	🇺🇸 Dallas	7,349	1991
18	Baker Tilly bit.ly Global provider of assurance, tax, and consultancy services with over 43,000 employees serving clients in 141 territories, guiding bold decisions and achieving goals	Accounting	🇺🇸 Global	6,700	n/a
19	PwC Canada pwc.com Delivering audit assurance, risk management, tax, and consulting services to build trust and solve complex business problems through collective industry expertise.	Business Consulting and Services	🇨🇦 Toronto	5,523	n/a
20	CohnReznick cohnreznick.com Provides assurance, advisory, and tax services with deep industry knowledge to optimize performance, manage risk, and maximize value globally.	Accounting	🇺🇸 New York	4,923	1919
21	BDO Canada bdo.ca A leading provider of professional services in Canada, offering assurance, tax, and consulting services with a people-first approach to talent experience	Financial Services	🇨🇦 Toronto	4,858	1921
22	Plante Moran plantemoran.com Professional services firm specializing in audit, tax, consulting, and wealth management with a strong focus on client relationships and support.	Accounting	🇺🇸 Southfield	4,664	1924
23	EisnerAmper eisneramper.com Provides attest services through an independent CPA firm and business advisory, non-attest services via an alternative practice structure for various business sectors.	Accounting	🇺🇸 New York	4,157	1963
24	Eide Bailly LLP eidebailly.com Provides tax, audit, and advisory services to improve business performance, reduce risk, and support long-term growth across industries.	Accounting	🇺🇸 United States	3,867	n/a
25	Wipfli wipfli.com Business consulting, digital services, audit, and accounting solutions for emerging and mid-market organizations across financial, healthcare, manufacturing, construction, and government sectors.	Business Consulting and Services	🇺🇸 Milwaukee	3,655	1930
26	Andersen andersen.com Global association of independent member firms with 14,000 professionals offering comprehensive solutions in accounting, law, and tax services worldwide With 2,000 personnel in the US	Financial Services	🇺🇸 San Francisco	3,560	n/a
27	Cherry Bekaert cbh.com Specialized CPA firm providing tax, audit, assurance, digital consulting, M&A advisory, business valuations, and strategic tax planning services.	Accounting	🇺🇸 Raleigh	3,311	1947
28	Armanino armanino.com A leading CPA & consulting firm offering top-tier services with a strong community commitment, industry expertise, and personal client attention	Accounting	🇺🇸 San Ramon	3,297	1969
29	Aprio aprio.com Provides global advisory, tax, legal, wealth, and talent solutions; also delivers audit and attest services to businesses and individuals worldwide.	Professional Services	🇺🇸 Atlanta	3,202	1952
30	Withum withum.com A modern advisory and accounting firm, leveraging technology to empower clients in today's business environment #InAPositionOfStrength	Accounting	🇺🇸 Princeton	3,169	1974
31	Citrin Cooperman citrincooperman.com Professional services provider offering attest, tax, advisory, and business consulting services in an alternative practice structure as independent member firms of a global network	Professional Services	🇺🇸 New York	2,938	1979
32	KPMG México kpmg.com Global organization providing Audit, Tax, and Advisory services through 200 Partners and 3,400 professionals in 17 offices across Mexico, offering global support with local expertise	Accounting	🇲🇽 Mexico City	2,508	1946
33	FORVIS forvismazars.us A top 10 public accounting leader, focused on delivering exceptional client experiences with a legacy of high-quality personal service nationwide and globally	Accounting	🇺🇸 Us	2,438	n/a
34	Raymond Chabot Grant Thornton rcgt.com A leading accounting firm with over 2,300 professionals offering assurance, taxation, consulting, and business recovery services in Quebec and globally	Professional Services	🇨🇦 Montreal	2,426	1948
35	Sikich sikich.com A global professional services company specializing in technology solutions, delivering transformative digital strategies and financial services to various clients worldwide	Business Consulting and Services	🇺🇸 Chicago	2,335	1982
36	Creative Planning creativeplanning.com Comprehensive wealth advisory firm offering personalized financial planning, investment management, tax, estate, retirement, and business succession services nationwide.	Financial Services	🇺🇸 Overland Park	2,324	1983
37	Datamatics Business Solutions datamaticsbpm.com Global provider of database solutions, demand generation, business research, finance outsourcing, and payroll services using robotics and machine learning for Fortune 1000 companies.	Outsourcing and Offshoring Consulting	🇺🇸 New York	2,319	1982
38	UHY-US uhy-us.com UHY provides audit, tax, consulting and advisory services to middle market clients, offering innovative solutions tailored to their business challenges globally	Accounting	🇺🇸 New York	2,223	n/a
39	Ong & Company ongandcompany.com A professional accounting firm offering tax, consulting, and financial services to businesses and individuals since 1982, serving over 1,000 clients nationwide	Accounting	🇺🇸 Overland Park	2,176	1982
40	Deloitte México deloitte.com Leading professional services firm in Mexico offering audit, consulting, financial advisory, risk management, tax, and legal services with nationwide coverage and over 5,400 employees	Accounting	🇲🇽 Mexico City	2,137	n/a
41	Carr, Riggs & Ingram criadv.com A nationally-ranked accounting and advisory firm providing traditional accounting services, business support, technology resources, assurance offerings, and helping clients achieve competitive advantage	Business Consulting and Services	🇺🇸 Enterprise	2,131	1997
42	Weaver weaver.com A Houston-based firm providing top accounting services, including assurance, tax, risk advisory, IT advisory, energy compliance, consulting, and specialty tax services	Accounting	🇺🇸 Houston	2,105	1950
43	PwC México pwc.com This company focuses on creating value for clients, employees, and communities in an ever-evolving world	Business Consulting and Services	🇲🇽 Miguel Hidalgo	2,013	1906
44	Moss Adams bakertilly.com Provides accounting, tax, and advisory services with extensive industry insights and holistic solutions for middle market businesses nationwide.	Accounting	🇺🇸 Seattle	2,001	1913
45	BPM LLP bpm.com Top 35 US public accounting firm in various industries, recognized for fast growth Offers diverse, progressive solutions as certified B Corp	Business Consulting and Services	🇺🇸 San Francisco	1,864	1986
46	GHJ ghjadvisors.com National advisory and accounting firm serving clients globally in nonprofit, food and beverage, entertainment, and health industries, leveraging a global network for comprehensive services (Note: This summary is based on the provided content without mentioning the company name)	Accounting	🇺🇸 Los Angeles	1,768	1953
47	Consero Global conseroglobal.com A pioneer in Finance as a Service, disrupting finance department setup for investment managers and PE/VC backed companies with cutting-edge technology	Financial Services	🇺🇸 Austin	1,737	2006
48	PKF O'Connor Davies pkfod.com Leading accounting, tax, and advisory firm serving domestic and international clients with a focus on delivering high value, expertise, and service	Accounting	🇺🇸 Harrison	1,718	1891
49	Block Advisors blockadvisors.com Tax professionals at this company help small business owners maximize credits and deductions with year-round tax preparation services and 100% accuracy guaranteed	Financial Services	🇺🇸 Kansas City	1,497	2015
50	Stout stout.com Global advisory firm specializing in corporate finance, accounting, transaction advisory, valuation, financial disputes, claims, and investigations for diverse clients.	Financial Services	🇺🇸 Chicago	1,484	1991
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51	H&CO hco.com This company offers international professional services in accounting, international taxes, SAP Business One implementation, global entity management, staffing, and payroll	Professional Services	🇺🇸 Miami	1,483	1992
52	Accounting Offices Professional accounting services based in Phoenix, Arizona, offering financial expertise and support to businesses and individuals in the United States	Accounting	🇺🇸 Phoenix	1,465	n/a
53	CCG ccg.com A national tax credit consulting firm in Pasadena, CA, specializing in helping companies maximize hiring-based and location-based tax credits	Accounting	🇺🇸 Pasadena	1,417	2002
54	Rehmann rehmann.com A professional advisory firm offering accounting, assurance, business solutions, specialized consulting, and wealth management services with over 80 years of experience	Financial Services	🇺🇸 Troy	1,415	1941
55	Deloitte deloitte.com A global professional services organization specializing in consulting, financial advisory, risk management, tax, and auditing services for clients in various industries	Business Consulting and Services	🇺🇸 Arlington	1,383	n/a
56	Servicios Contables sccalop.com Servicios Contables provides executive office services, specializing in accounting, located in Houston, Texas	Accounting	🇺🇸 Houston	1,314	n/a
57	Mallette mallette.ca Provides extensive accounting, advisory, and client-focused services through numerous Quebec offices, supporting local and international business needs.	Financial Services	🇨🇦 Quebec City	1,303	1941
58	Integra Global Solutions Corp globalintegra.com A leading business process outsourcing and technology company offering AI automation and cloud solutions to drive cost reduction and efficiency for global clients	Outsourcing and Offshoring Consulting	🇺🇸 Wexford	1,214	2004
59	Elliott Davis elliottdavis.com A leading US business solutions firm with over a century of experience in tax, assurance, and consulting services Follow for updates and visit their website for more information	Professional Services	🇺🇸 Greenville	1,167	1920
60	CFGI cfgi.com Global accounting firm providing technical accounting, capital markets, tax, ESG, and transaction advisory services through former Big 4 professionals without auditor independence restrictions.	Business Consulting and Services	🇺🇸 Boston	1,109	2000
61	Marcum LLP cbiz.com A national accounting and advisory firm dedicated to helping middle-market companies and individuals achieve success through tax, assurance, advisory, technology, and wealth management services	Accounting	🇺🇸 New York	1,098	1951
62	HORNE horne.com Professional services firm supporting clients in public, private & government sectors nationwide, empowering team members to serve with empathy and clarity	Professional Services	🇺🇸 Chicago	1,083	1962
63	The Bonadio Group bonadio.com A nationally ranked CPA firm offering accounting, tax, and consulting services with a focus on being greater for colleagues, clients, and community	Accounting	🇺🇸 Pittsford	1,071	1978
64	BKD CPAs & Advisors forvismazars.us Top-tier CPA and advisory firm providing comprehensive services including risk management, technology, wealth management, and forensic and valuation services to clients globally	Accounting	🇺🇸 Springfield	1,068	n/a
65	Kearney & Company kearneyco.com A leading CPA firm specializing in government financial management services to enhance operations, compliance, accountability, and prevent fraud	Accounting	🇺🇸 Alexandria	1,061	1985
66	RubinBrown LLP rubinbrown.com Offering unmatched service to various sectors, we provide expert accounting and consulting services to help clients build and protect value	Accounting	🇺🇸 St. Louis	1,057	1952
67	CBIZ Advisory Services cbiz.com A financial services division providing accounting, tax, consulting, audit, and industry-specific services to clients nationwide, in collaboration with an independent CPA firm	Accounting	🇺🇸 Cleveland	1,055	n/a
68	BerryDunn — Assurance, Tax and Consulting berrydunn.com A nationally recognized firm providing assurance, tax, and consulting services to help clients create, grow, and protect value with exceptional service	Accounting	🇺🇸 Portland	1,049	1974
69	Cohen & Co cohenco.com A highly reputable tax and accounting firm offering assurance, tax, and advisory services to a wide range of clients globally Founded in 1977 with over 800 professionals	Accounting	🇺🇸 Cleveland	1,045	1977
70	Frazier & Deeter frazierdeeter.com Award-winning accounting & advisory firm serving a diverse range of clients with tax, audit & advisory services, focusing on relationships and future growth	Professional Services	🇺🇸 Atlanta	1,036	1981
71	FMS Solutions fmssolutions.com Specializing in accounting and consulting services for independent retailers, transforming historical data into decision support tools to help businesses succeed	Financial Services	🇺🇸 Fort Lauderdale	1,033	1974
72	NYCTaxguys, Inc.nyctaxguys.com Professional accounting services for individuals and small businesses, specializing in payroll, bookkeeping, tax services, budgeting, incorporation, and consulting Available 24/7 for assistance	Accounting	🇺🇸 New York	1,010	2010
73	Baker Tilly Canada bakertilly.ca National association of chartered professional accounting firms providing audit, tax, and advisory solutions for diverse industries through an extensive independent member network.	Accounting	🇨🇦 Waterloo	1,004	n/a
74	Connor Group connorgp.com Advisory firm specializing in IPOs, AI, automation, financial reporting, M&A, and transformation services for CFOs, CIOs, and CHROs.	Professional Services	🇺🇸 United States	986	2006
75	Jefferson Wells jeffersonwells.com A global leader in professional talent and solutions, accelerating business growth and careers by providing specialized expertise and proven workforce solutions	Management Consulting	🇺🇸 Milwaukee	966	1995
76	H&R Block Canada hrblock.ca A leading tax preparation service in Canada for 60 years, offering expertise, training, and digital solutions to serve clients nationwide	Financial Services	🇨🇦 Calgary	936	1964
77	Doeren Mayhew doeren.com Professionals providing guidance and direction to businesses and nonprofit organizations to traverse complex business terrain. Offers audit, tax, and business consulting services.	Accounting	🇺🇸 Troy	929	1932
78	International Accounting Firm skjtllp.com A company providing CPA services and consulting for various business needs	Accounting	🇺🇸 Hollywood	926	n/a
79	Myers and Stauffer LC myersandstauffer.com Specializing in accounting, consulting, and data analysis for state and federal agencies managing government health care programs, with expertise in reimbursement issues and program integrity	Accounting	🇺🇸 Kansas City	923	1977
80	Richter richter.ca Business \| Family Office providing strategic advice on business and family matters, guiding successful entrepreneurs to shape their legacy across generations	Professional Services	🇨🇦 Montreal	922	1926
81	Cogneesol cogneesol.com Global professional services organization offering industry-specific solutions in business process management, technology, analytics, and customer services to companies worldwide, driving transformation and innovation	Outsourcing and Offshoring Consulting	🇺🇸 New York	918	2008
82	KSM (Katz, Sapper & Miller)ksmcpa.com A nationally recognized firm offering advisory, tax, and audit services, leveraging technology and diverse perspectives to help clients thrive and innovate	Accounting	🇺🇸 Indianapolis	915	1942
83	RSM Canada rsmcanada.com A leading global provider of assurance, tax, and consulting services with an integrated team of industry-focused experts across Canada and beyond	Accounting	🇨🇦 Toronto	898	n/a
84	Whitley Penn whitleypenn.com Offers full-service public accounting. Fosters individual growth and professional goals, providing beneficial opportunities focusing on achievement and career development for its people.	Accounting	🇺🇸 Fort Worth	893	1983
85	Warren Averett warrenaverett.com A leading accounting firm in the Southeast offering audit, tax, advisory, technology, HR, and finance services to a wide range of businesses	Accounting	🇺🇸 Birmingham	889	1972
86	Springline Advisory springlineadvisory.com Springline Advisory is a financial and business advisory firm focused on reshaping the accounting industry through innovative value creation and scaling strategies	Business Consulting and Services	🇺🇸 Dallas	879	2023
87	CBIZ CPAs P.C.cbizcpas.com A national accounting firm with 28 locations, offering audit, review, and attest services, specializing in financial services, tax, and accounting industries	Accounting	🇺🇸 New York	863	1954
88	HCVT hcvt.com A top 30 CPA firm in Los Angeles providing tax, audit, business management, and valuation advisory services with a focus on partner access and advice	Accounting	🇺🇸 Los Angeles	863	1991
89	A-LIGN a-lign.com provides high-quality cybersecurity compliance programs including SOC 2, ISO 27001, HITRUST, FedRAMP, CMMC, and PCI audits	Computer and Network Security	🇺🇸 Tampa	855	2009
90	Gov-Con Solutions gov-con.com Specializing in financial and accounting solutions for government contractors, we assist with systems, rates, proposals, budgets, projections, and audits nationwide	Government Administration	🇺🇸 Broomfield	843	2004
91	Novogradac novoco.com Accounting and consulting services specializing in real estate, affordable housing, community development, renewable energy, and valuation for national clients.	Accounting	🇺🇸 San Francisco	829	1989
92	Baker Tilly One India mossadams.com Global expansion of a leading accounting and consulting firm with a focus on delivering high-quality services, innovation, and developing future leaders	Professional Services	🇺🇸 Chicago	807	1931
93	Frank, Rimerman + Co. LLP frankrimerman.com A top accounting firm with over 70 years of experience, providing local and global accounting and consulting services to individuals and businesses	Accounting	🇺🇸 Palo Alto	805	1949
94	Your Part-Time Controller, LLC yptc.com A growing company specializing in nonprofit accounting, recognized for its strong relationships, diverse expertise, and commitment to building stronger nonprofits	Accounting	🇺🇸 Philadelphia	805	1993
95	Kaufman Rossin kaufmanrossin.com Professional services firm offering audit, tax, business, risk, and forensic advisory services to businesses and leaders globally Award-winning for workplace culture	Accounting	🇺🇸 Miami	794	1962
96	LBMC lbmc.com A leading professional services provider offering accounting, finance, HR, technology, risk, and wealth advisory services with a strong focus on client relationships and employee satisfaction	Accounting	🇺🇸 Brentwood	776	1984
97	JME Eden Enterprises DBA HR Block A franchise-owned company specializing in tax preparation and bookkeeping services for small businesses	Financial Services	🇺🇸 Plover	770	n/a
98	Salles Sainz - Grant Thornton, S.C.grantthornton.mx Mexican firm of public accountants and consultants known for personalized services, part of Grant Thornton International, offering audit, tax, and specialized services worldwide	Accounting	🇲🇽 Coyoacán	727	1979
99	Grant Thornton LLP (Canada)doanegrantthornton.ca A leading Canadian accounting and advisory firm, helping organizations unlock their potential with audit, advisory, and tax services Recognized for workplace excellence	Accounting	🇨🇦 Toronto	725	n/a
100	Small Business Services theledgerway.com Financial advisory firm offering tax planning, business management, payroll services, and financial planning to owner managed businesses and individuals for informed decision-making	Financial Services	🇺🇸 Atlanta	720	1990

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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 15, 2026.

The 100 largest accounting firms in North America

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