Alliance Trust Savings (ATS) is in advanced negotiations with around 30 fund groups over adding clean share classes to the platform.
The platform currently lists around 1,400 clean share classes from 40 fund groups. It plans to nearly double this number as part of a drive to treble advised assets under administration on the platform by the end of 2014.
Earlier this week, ATS added clean share classes from Fundsmith, Marlborough and Cornelian.
The rest will follow in two to three months' time, said managing director Patrick Mill.
"We're looking to expand the fund range and we are talking to another thirty-plus [fund groups], so you can see it will be significant," he said.
Advised business on the platform - which currently makes up only £500m of the £4.1bn total - would skyrocket as a result of the move to adviser charging, he added.
"Historically we have only ever dealt with fee charging IFAs," he said. "We will do more business in Q1 than the whole of 2012 - over double, in fact.
"We want advised business to be at £3bn [by the end of 2014]. It's aggressive but we think we have something to offer."
Despite a £400,000 loss in 2012, the platform started turning a small profit in Q4. ATS will report full-year profits for the first time next year, Mill said.
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