Standard Life has acquired the remaining 75% stake in IFA support services firm threesixty.
It acquired a 25% stake in the company in May 2007, and has now acquired the remaining equity for an undisclosed sum.
Standard Life says the deal will strengthen its understanding of advisers' needs, allowing it to support them through the RDR transition period.
It stressed there will be no change in threesixty's impartiality, with all existing operation partners remaining with the business.
David Nish, chief executive of Standard Life, says: "threesixty has the skills and capabilities to support IFAs, and with Standard Life's backing, will continue to play a leading role in supporting the transformation of the IFA market."
threesixty partnet, David Ingram, adds:"The levels of support which threesixty's client firms will require in the run up to the RDR and beyond will require expansion and enhancement of our services.
"With the backing of Standard Life, we can look forward to working together, along with our other strategic partners, to develop the business further and deliver increased value to our client firms."
In April 2008, the two firms revealed they were working together to develop a wrap platform for threesixty members.
threesixty has 575 IFA clients, with a total of over 5,000 advisers. At the end of 2008, threesixty had a turnover of £571m, according to Matrix-Data, with the bulk of its business in pensions and investments.
Gross assets of threesixty were worth £5.2m at 31 December 2009.
It was voted 'IFA Support Provider of the Year 2010' at the Professional Adviser Awards this year.
The acquisition was effective from Friday 12 March.
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