The firms’ new structure would establish a partner-owned organisation spanning locations across the UK, the US, Canada, Ireland, India and El Salvador, supported by 23,000 professionals, with combined annual revenues of $5 billion (c. £3.8bn).

Brian Becker, managing partner and CEO, RSM US, comments: “Our clients have long desired to be served by a financially integrated transatlantic organisation. This merger will create a platform to more effectively serve client needs with quality services and more seamless access to our resources.  

“We are doubling down on our future as a dynamic, partner-owned platform, at a time when the industry is undergoing transformation. We are well capitalised to continue investing in our growth and the advancement of our 2030 global strategy.

“We have a deep and long-standing relationship with our UK colleagues, and we look forward to joining forces to drive value for our clients, owners, employees and the entire RSM International network.”

Rob Donaldson, CEO, RSM UK, said: “RSM UK has seen strong growth in revenue and profits as we’ve repositioned the firm over the last four years.

“Bringing our UK and Irish firms together with our U.S. and Canadian colleagues is the next logical step on our journey. We already have strong bonds with our transatlantic colleagues and work together with a common aim, to be leading advisors to the middle market. 

“We’ve decided to come together to form a unique partnership that goes further to service the needs of our clients as they expand globally, and to create terrific opportunities for our own talent. Now is the time to accelerate our ambitions by drawing on each other’s considerable strengths to become the middle market advisor of choice, globally.”