RSM sees UK revenues grow by 10% to nearly £600 million
Audit, tax and consulting network RSM has enjoyed an almost 10% increase in its yearly UK revenues. The firm saw a £51 million leap in its British-based income, to hit a record £594 million for its 2025 financial year.
RSM is a global network of member firms, which currently has more than 65,000 people across 900 offices in 120 countries. In its global financial year reported last year, which spanned the 12 months of 2024, RSM booked 6% revenue growth, on the way to becoming only the sixth global accounting and advisory network to hit the $10 billion mark following just the Big Four and BDO.
The firm has been enjoying rude health in its UK member firm, too. According to a recent release from the company, for the 12 months until March 31st 2025, RSM saw its total revenues rise to £594 million – the highest ever.
This was driven by RSM’s UK audit and assurance service line, which delivered a near 14% increase in revenues to £188 million, from £165 million the year before. Tax services also expanded by double digits – rising by over 13% to £183 million in the 2025 figures. And while the consulting sector endured another difficult 12 months, RSM’s own consulting business – which includes business, transformation, deal services, finance function support, forensic and investigation services, restructuring, and risk and governance – saw revenues remain the firm’s largest draw; growing 3% to hit £223 million.
Rob Donaldson, UK CEO for RSM, commented, “It’s been another exceptional year for RSM. These results reflect the marked and consistent growth of the firm in what continues to be a very tough market. Despite a stagnating economy and elevated inflation, we have continued to achieve strong growth in revenue and profitability which has, in turn, allowed substantial investment in the business.”
To that end, during a year when many peers markedly reduced staff numbers, RSM’s UK business not only maintained its total headcount at 5,313, but it continued to invest heavily in them as part of its “Grow our own” strategy. As a result, some 20% of its people received promotions, with commensurate and significant changes in remuneration. This acceleration in reward included a 28% rise in discretionary bonuses, up from 4% in 2024. Meanwhile, almost 40 people were promoted to partner or director.
Looking ahead, RSM has also invested in talent training and development to help maintain its current rate of growth. The firm supported 2,160 of its people to study for professional qualifications, up from 1,863 in the previous year, while 18% of new roles were filled by internal talent – boosted from 15%.
Donaldson added, “For five years we’ve been laying the groundwork for long-term success by evolving our ownership and organisational structure, and by putting more money back into the business than ever before. We’ve invested heavily in our people, our digital strategy and in our global ambitions through our investment in RSM Ireland and, more recently, our transatlantic partnership which opens a new chapter.”
RSM’s UK and US wings announced their intent to strengthen their relationship in October 2024. Since then, 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 – while 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 $5 billion.
