2026 Best Accounting Firms for Audit & Assurance
PwC
New York-headquartered professional services firm PwC LLP is the U.S. member firm of PricewaterhouseCoopers International Limited, whose network of firms serve approximately 85 percent of Fortune Global 500 companies and more than 100,000...
Deloitte
Deloitte provides audit, consulting, tax, and advisory services to many of the world’s largest organizations, including nearly 90 percent of the Fortune 500 and more than 7,000 private companies. Deloitte’s client service professionals work...
Ernst & Young LLP
Ernst & Young LLP (EY US) is a member firm of Big 4 accounting legend EY, a global organization of member firms. EY US provides consulting, assurance, tax, and strategy and transactions services. Its industry specializations include consumer...
KPMG LLP
With more than 36,000 professionals in more than 90 offices across the U.S., KPMG LLP has rightfully earned its place among accounting’s Big 4. KPMG, the fourth largest accounting firm in the U.S. by revenues, is the independent U.S. member firm...
Grant Thornton
Grant Thornton LLP (Grant Thornton) is the U.S. member firm of Grant Thornton International Ltd, one of the world’s largest organizations of independent audit, tax, and advisory firms, with more than 60,000 professionals in more than 135...
RSM US LLP
RSM US LLP (RSM) is the leading U.S. provider of assurance, tax, and consulting services focused on the middle market, and the fifth largest professional services firm in the country by annual revenues. In its latest fiscal year, the firm booked...
BDO USA, P.C.
BDO USA, P.C. is the U.S. member firm of BDO International Ltd., one of the world’s largest accounting and advisory organizations serving the middle market, with more than 119,600 people working out of more than 1,800 offices across 166...
Baker Tilly
Baker Tilly is an advisory, tax, and assurance firm headquartered in Chicago. It currently ranks among the top 10 largest accounting firms in the U.S. as measured by annual revenues, according to Inside Public Accounting. Baker Tilly has more...
Moss Adams LLP
Seattle-based Moss Adams is a professional services firm that provides accounting, consulting, and wealth management services. It’s been in business for 112 years and employs more than 4,800 professionals across more than 30 locations in...
CohnReznick
CohnReznick ranks among the top 20 public accounting firms in the U.S. based on annual revenues. In its latest fiscal year, its revenues exceeded $1 billion. CohnReznick is the brand name under which CohnReznick LLP and CohnReznick Advisory LLC...