RSM Tenon Group, the national firm of advisers and accountants, saw underlying profit climb 53% in the second half of last year.
Adjusted operating profit reached £13.5m in the six months to 31 December 2010, compared with £8.8m in the same period the previous year.
Turnover increased at a faster rate - up 65% to £121.1m - with the group citing external factors and continued investment in its Corporate Recovery unit.
The company's financial management service line saw turnover almost treble to £14.8m, thanks in part to strong organic growth.
Tenon completed its acquisition of RSM Bentley Jennison in 2009 and says it has now fully integrated both that company and certain business assets of Vantis into the group.
It adds the benefits of integration remain on track to deliver a contribution of £10m in cost savings alone.
Group CEO Andy Raynor (pictured) says: "We have grown both the turnover and profitability of the group and our single-minded commitment continues to deliver the expected benefits of recent acquisitions.
"In an economy and marketplace that is increasingly uncertain in outlook, vital to the future are our recurring client base, complementary service lines, better use of resources, and strength from scale."
A year ago, the FSA fined RSM Tenon Financial Services £700,000 for significant failings in its advice and sales processes relating to Lehman-backed structured products.
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