Assets under management in the year to September rose by 5.1% to £45bn, which included £1.4bn of inflows.
David Nicol, chief executive, said organic growth has been resilient against the continued uncertain economic and political backdrop.
"With respect to Brexit, we are prepared and will take appropriate measures to address any eventualities that emerge," he said in a statement.
Revenues for the year rose by 3% to £339mln, while Brewin's profits dropped 9% to £62.6mln.
The dividend for the year was unchanged at 16.4p.