RSM US LLP operates as the fifth-largest professional services firm in the United States, deploying over 10,000 professionals across more than 80 offices to serve middle market organizations exclusively. Founded in 1926, the firm delivers audit and assurance, tax advisory, transaction advisory, and consulting services through a U.S. member affiliation with RSM International, providing access to resources across more than 120 countries. This dedicated middle market positioning differentiates RSM from diversified competitors pursuing both enterprise and mid-sized clients.
The firm's transaction advisory practice supports private equity due diligence, operational assessments, and exit readiness evaluations for portfolio companies. Service capabilities span risk consulting, management consulting, and digital transformation - domains critical to operational improvement initiatives and value creation strategies in sponsor-backed environments. RSM combines industry-specific expertise with data analytics infrastructure, utilizing platforms including Power BI, Tableau, Python, and SQL to quantify performance metrics and identify efficiency opportunities.
RSM's middle market specialization aligns with the operational scale of typical private equity portfolio companies, where governance frameworks, financial controls, and growth infrastructure require professional services calibrated to mid-sized complexity rather than enterprise architecture. The firm's audit, tax, and advisory integration provides continuity across investment holding periods, from acquisition due diligence through operational optimization to pre-exit financial positioning. Leadership under CEO Brian Becker maintains focus on this market segment, avoiding the competitive dynamics firms encounter when serving both Fortune 500 enterprises and middle market operators simultaneously.