RSM UK and RSM US decisively approve transatlantic partnership
RSM UK Holdings Limited and RSM US LLP – the leading providers of assurance, tax and consulting services for the middle market – announced today that they will join forces through a new transatlantic partnership, effective 1 January 2026. Partners of both firms have cast near-unanimous votes in favour of the new partnership structure.
Since RSM UK and RSM US announced their intent to strengthen their relationship in October 2024, the firms have worked toward the creation of a partner-owned platform that optimises their ability to serve global clients, develop talent and accelerate growth. This transatlantic partnership is expected to achieve those objectives by successfully aligning governance, including a common approach to financial incentives, client service and future growth investments.
Under the new structure, 23,000 professionals will operate across the UK, the US, Canada, Ireland, India and El Salvador, generating aggregate annual revenues of $5bn (USD).
Brian Becker, RSM US managing partner and CEO of the new transatlantic partnership, comments: “We are excited to create a new transatlantic partnership with shared values, enhanced reach and connected resources. The nearly unanimous vote in favour shows that partners from the US, the UK, Canada and Ireland are excited to join forces to build a future where we are in an even stronger position to serve the evolving needs of clients and cement our position as the preeminent provider of services designed for the middle market.
“This bold step builds on the momentum of our other recent investments – including in artificial intelligence and our digital core, new service offerings, and integrated solutions – to stay ahead of clients’ evolving needs. It also positions us for accelerated growth, with a scalable structure designed to support a $10bn (USD) multinational partner-owned platform in the future. Together, we look forward to driving enhanced value for our clients, partners and talented employees around the world.”
Rob Donaldson, RSM UK CEO, comments: “This announcement reflects a continuation of the transformation of the RSM business in the UK over the last five years. 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. In today’s rapidly evolving market, our new partnership helps us make quicker, bolder decisions and investments to serve clients around the world.
“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, as clients increasingly see the benefits from our market-leading offerings on both sides of the Atlantic. This step forward also gives our talent new pathways for collaboration and cross-border engagements, paving the way for global learning that will enrich our people and strengthen our culture.”
The firms will continue to be independent members of the RSM International network.