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 115,600 people working out of more than 1,770 offices across 166 countries and territories. BDO USA is the sixth-largest accounting firm in the U.S., measured by annual revenues. It has more than 75 offices and 12,000 employees, including 842 principals. In 2023, BDO USA booked revenues of $2.89 billion; it also established an ESOP (employee stock ownership plan), the largest of its kind in the accounting industry. BDO’s ESOP provides participating professionals a beneficial ownership stake in the firm.

BDO USA 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; nonprofit and education; private equity; professional services; real estate and construction; and technology.