Lybrand, Ross Bros. & Montgomery was an accounting firm founded in the early 20th century. It became known for providing a range of professional services, including auditing, tax consulting, and management advisory services. The firm gained a reputation for its commitment to quality and integrity in the accounting profession. In 1989, Lybrand, Ross Bros. & Montgomery merged with Price Waterhouse, forming one of the largest professional services firms in the world, known as PricewaterhouseCoopers (PwC). This merger expanded the firm's global reach and service offerings, solidifying its position in the competitive landscape of accounting and consulting services.