A near-unanimous vote has paved the way for a partner-owned future that serves middle market leaders with an increasing need for globally integrated solutions. In October 2024, RSM UK and RSM US announced their intent to join forces to deliver seamless cross-border services for the middle market. A year later, following decisive votes in favour, owners of RSM firms on both sides of the Atlantic have approved the plan to create a new transatlantic partnership.
The structure optimises the firms’ ability to serve global clients, develop talent and accelerate growth, while remaining a partner-owned enterprise. It will support aligned governance, including a common approach to financial incentives, client service and future growth investments.
With 23,000 professionals across the UK, US, Canada, Ireland, India and El Salvador, the firms generate aggregate revenues of $5bn (£3.75bn).

Rob Donaldson
RSM UK CEO
We have been on a journey to become a more effective competitor to the largest players in the UK market whilst enhancing our ability to support our RSM network partners globally. This next step marks a defining moment in the journey of our firms on both sides of the Atlantic. We have, over the last 12 months, already seen new opportunities and tangible client wins that our firms could not have achieved independently. We believe this is only the beginning.
The partnership will enable seamless service delivery across the UK, US, Ireland and Canada
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RSM US and RSM UK decisively approve transatlantic partnership
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