RSM US LLP is a consulting firm based in Chicago, Illinois that rsm us llp is an audit, tax and consulting firm focused on the middle market and the u.s. member firm of the global rsm international network. founded in 1926, it employs roughly 19,000 people across offices nationwide and is a pcaob-registered public accounting firm. rsm maintains dedicated digital-asset services spanning audit, accounting, tax and blockchain consulting, including a digitaltracker tool for digital-asset tax reporting and alliances with technology providers such as bitwave. it advises companies on custody, valuation, controls and tax matters related to crypto and other digital assets. They serve clients in US. RSM US LLP is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/rsm-us-llp.