2026 Vault Accounting 25
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...

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...

Plante Moran
Now in its 101st year of operation, Plante Moran is one of the 15 largest accounting firms in the U.S., as measured by annual revenues. It’s headquartered in Southfield, Mich., a suburb of Detroit, and has been on a major growth streak in recent...

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...

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...

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...

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...

PKF O'Connor Davies
PKF O’Connor Davies is a full-service certified public accounting and advisory practice that serves domestic and international clients. According to Accounting Today’s 2025 “Top 100 Firms” list, PKF O’Connor Davies is the 25th-largest accounting...

CBIZ
CBIZ is the seventh largest accounting firms in the U.S. It has offices in most major metropolitan areas and suburban cities in the country and provides a wide range of accounting services, including audit and assurance, financial statement...
