RSM US LLP is an audit, tax, and consulting firm focused on the middle market in the United States and Canada and is a member of the global accounting network RSM International.

Beginning in 1999, through a partnership with H&R Block, McGladrey operated under two separate legal entities: McGladrey & Pullen operated under the traditional partnership structure and offered audit and attestation services.

RSM McGladrey was established under the partnership agreement with H&R Block to provide tax and advisory services under an alternative practice structure.

In 2006, RSM settled a business fraud class action lawsuit against them for $41.5M.

[3] In 2019, RSM was charged with violating auditor independence rules by the SEC.