One year in, Ecclesiastical Amity Corporate Bond fund is seeing modest monthly inflows of £500,000 a month and manager Robin Hepworth expects between 25% and 40% growth in year two.
Impax Group saw slight decreases in its assets under management and net profit, according to interim results to 31 March.
Managers have welcomed the Chancellor's commitment to further investment in renewable energy and efficiency incentives, as laid out in last week's Budget.
Significant investment opportunities exist in energy and waste sectors, says Impax Asset Management.
Growth of 20% plus could be seen in the clean technology sector as historically low price to earning valuations are played out, say eco-focused fund managers.
Impax Asset Management is aiming to grow its IFSL Impax fund substantially over the next two years as countries put increasing focus on green technologies.
Climate Change Capital is meeting with Government proposing the issuance of climate bonds, which are being likened to war bonds.
Standard & Poor's is launching a US Carbon Efficient index, the first in a series of global low-carbon indices.
Swiss wealth manager Julius Baer is launching its Biotech fund to UK investors.
New Earth Solutions has raised its first target of £10m since July 2008 for its Recycling Facilities investment sub-fund.