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 94,900 people working out of more than 870 offices across 169 countries and territories. BDO USA is the seventh-largest accounting firm in the U.S., measured by annual revenues. It has more than 85 offices and 14,600 employees. In 2025, BDO USA booked revenues of over $3 billion. In 2023, BDO USA became an ESOP (employee stock ownership plan) company, the largest of its kind in the accounting industry. BDO’s ESOP provides participating professionals with a stake in the firm’s success through beneficial ownership.

BDO USA, with roots dating back to 1910, provides assurance, tax, and advisory services to a wide range of publicly traded and privately held companies. The firm's industry expertise includes consumer services; financial services; government and public sector; government contracting; healthcare and life sciences; manufacturing; natural resources and energy; nonprofit and education; private equity; professional services; real estate and construction; and technology.