Barnett Waddingham has purchased Chase de Vere's Sipp and SSAS book for an undisclosed fee, it announced this morning.
There was a 46% rise in the number of complaints about Sipps made to The Pensions Advisory Service in the last year.
A ruling against a Sipp operator which sparked fears of a precedent being set and a rise in claims will be reviewed by The Financial Ombudsman Service.
A sipp firm has undertaken research, which suggests that awareness of Sipps among young people has risen significantly since the Budget in March.
IFG Group, which owns Sipp and SSAS wrap provider James Hay, has sold its Irish pension and advisory business to Willis Ireland for £10.8m.