RDR created "massive opportunities" for Mattioli Woods as it saw revenue increase by 14.3 per cent to £23.4m.
In its full-year results today, the firm said revenue was up from £20.4m to £23.4m.
Total client assets were up 20 per cent to £3.6bn while pre-tax profit was up 9.9 per cent to £5m to £5.6m.
There were also several launches and acquisitions during the year. It was appointed to run the Pilgrim Sipp in June 2012 and launched its own discretionary portfolio management service in August 2012.
A flexible benefits proposition was launched in March 2013 and it acquired the pension business of Ashcourt Rowan in April. The acquisition of Ashcourt Rowan brought in £301.9m of assets.
The firm has since been appointed to run the HD Sipp and acquired consulting firm Atkinson Bolton.
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Bob Woods, executive chairman at Mattioli Woods, said: "I am delighted to report another year of profitable growth. The RDR heralded a period of unprecedented change in our sector, creating enormous opportunities.
"I believe we are well positioned to grow in the post-RDR world and we plan further investment in information technology, training and recruitment over the next 12 months. I have enormous conviction in our strategy and look forward to Mattioli Woods delivering first class services to our clients and further sustainable growth to our shareholders over the coming year."