Liontrust's assets under management grew by 15 per cent to £35.7bn in the six months to the end of September.
The increase in assets represents a growth of 73 per cent compared with the same period last year.
Liontrust's assets under management stood at £36.5bn as of November 26.
In its half year results, released this morning, the company also posted a 19 per cent rise in net inflows, to £2.1bn, compared with a year earlier.
John Ions, Liontrust's chief executive, said the company had delivered a strong six months of sales and financial performance.
“Our net inflows of £1bn and above for each of the last three quarters demonstrate the excellence of our investment teams, long-term performance, distribution, communications and power of the brand.”
Liontrust's biggest investment arm is its sustainable investment division, which now manages £12.2bn of UK retail assets while its multi-asset arm manages £7.3bn.
The company posted a profit before tax of £31m for the year, up from £6m the year before.
Ions added that Cop 26 had reiterated the “vital role” asset management had to play in allocating capital to aid tackling climate change.
“Asset management can also benefit the wider society through democratising savings and community engagement,” he said.
“We have a responsibility to enable as many people as possible to boost their savings and future prospects by making investments as simple to understand and as easy to access as possible.”
Earlier this year Liontrust pulled the initial public offering of its sustainable investment trust due to a lack of investor interest.
sally.hickey@ft.com
