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RSM US

RSM US LLP is an assurance, tax, and consulting firm focused on the middle market. It dates its practice to 1926 and is the US member firm of RSM International, a network of independent firms with reach in more than 120 countries whose members are separate legal entities that do not obligate one another.

Private company services are organized around a lifecycle approach for closely held businesses. One point of contact coordinates business and tax strategy as the company moves through stages, covering tax decisions that affect owner wealth preservation, risk thresholds that have to match business strategy, and family dynamics, while the wider firm supplies specialist help behind that relationship.

Public company work sits at the intersection of governance, risk, finance, technology, transactions, and operations: aligning those priorities, strengthening reporting confidence, navigating capital markets and growth events, and building resilience in a changing regulatory and cybersecurity environment. The firm also publishes technical resources on financial reporting and tax regulation, the Real Economy series, and the RSM US Middle Market Business Index.

Other lines include mergers and acquisitions, risk, fraud and cybersecurity, AI, analytics and cloud services, managed and outsourced solutions, family office services, and sustainability services, supported by a stated $1 billion investment in agentic AI and technology. The pages crawled do not describe a dedicated real estate industry group, so confirm the real estate and partnership tax experience of the specific team that would serve the engagement.

Best for

Middle-market owners, funds, and management teams that need audit, partnership tax, or transaction advisory from a national firm with technical depth and international reach. Too large an engagement for a single-property LLC that needs a bookkeeper and a return.

What they do

  • Assurance and audit
  • Tax compliance and planning
  • Private company business and tax strategy
  • Public company advisory
  • Mergers and acquisitions advisory
  • Risk, fraud, and cybersecurity
  • AI, analytics, and cloud services
  • Managed services and outsourced solutions
  • Family office services
  • Sustainability services

Details

AttributeValue
Founded1926

What stands out

  • Dates its practice to 1926 and is the US member firm of RSM International.
  • The RSM International network has reach in more than 120 countries.
  • Publishes the RSM US Middle Market Business Index and the Real Economy series.
  • Cites a $1 billion investment in agentic AI and innovative technology.