In its annual results the firm, which focuses on investments in environmental markets and related resource efficiency sectors, also reported an increased profit before tax figure of £5.1m compared with £3.5m for the same period the previous year.
Chairman Keith Falconer noted the increase in assets occurred “notwithstanding the effect of a sharp market correction in September”, and attributed the “good progress” across the business to strong performance from its listed equity strategies as well as the continued development of its renewable energy infrastructure strategy.
Although he noted the plans to scale up the business during the year did incur additional costs including more team members and increased distribution resources, while the private equity business saw a decline in revenue as its second fund reached the end of its investment period.
In the period total assets in Impax label listed equity funds fell slightly from £511m at September 30 2014 to £495m a year later, driven by net outflows and negative market movements, while third party listed equity funds and accounts saw assets increase from £1.87bn to almost £1.99bn in the 12 months.
Meanwhile Ian Simm, chief executive of Impax, highlighted the increased distribution capability in the UK in the past year.
He added: “We are currently finalising a proposal to launch our (listed equity) Leaders strategy within our existing Irish Ucits umbrella structure. This strategy was established in March 2008 and now has over £500m of assets from continental European and US investors.”
Mr Simm continued: “We are making strong progress at building our product range and our relationships with investors around the world.”