The group said customer numbers hit 560,000 by the end of December, representing a 16 per cent increase in the last year, as managed assets soared 17 per cent to £89.5billion.
Advised customer numbers increased by 8 per cent and 2 per cent over the year and quarter, respectively, to 174,000, while direct to consumer customers reached 387,000.
This represented a 20 per cent increase over the year and a 2 per cent rise for the quarter.
AJ Bell investment platform customer numbers hit a record high last year as pre-Autumn Budget jitters helped boost assets under management.
Net inflows over the quarter reached £1.4billion, representing a £100million increase compared to the firm's first quarter last year.