RSM US

RSM US LLP is an American audit, tax, and consulting firm headquartered in Chicago, Illinois, United States. Founded in 1926 as McGladrey & Pullen, it is the U.S. member of RSM International, focusing on middle-market clients. The company's segments lude Assurance (financial audits and reviews), Tax (compliance and planning), and Consulting (risk advisory, technology, and transaction services). RSM operates over 120 offices across the U.S. and Canada, serving industries like financial services, healthcare, and manufacturing through global alliances for cross-border compliance. Its operations involve third-party networks for specialized tools and data analytics, adhering to PCAOB, AICPA, and SOX standards for audit quality, with dedicated compliance teams for GDPR and anti-money laundering regulations. As a leader in financial crime and compliance operations per Everest Group 2025, RSM emphasizes vendor due diligence in AI-driven advisory services. In fiscal year 2025, RSM reported revenues of approximately $3.5 billion, ranking fifth-largest U.S. accounting firm by Accounting Today, with growth in consulting on 20% of total.