PKF O'Connor Davies is a full-service CPA and advisory firm that provides audit, tax, and management advisory services to domestic and international clients. The firm has a long history, with roots dating to 1891. Today, the firm has more than 900 professionals, and 12 offices in New York, New Jersey, Connecticut, Rhode Island, and Maryland. PKF O'Connor Davies ranked No. 27 on Accounting Today's 2020 Top 100 Firms list. It also ranked as one of the seven largest firms in the Mid-Atlantic region, according to Accounting Today.

PKF O'Connor Davies is the lead North American representative in PKF International, a global network of legally independent accounting and advisory firms. This enables PKF O'Connor Davies to provide clients with access to professionals at firms in more than 400 locations and 150 countries around the world, allowing PKF O'Connor Davies to better serve domestic clients with their international business needs.