The Glasgow-based private equity firm will raise the funds by issuing shares in six venture capital trusts it manages.
Managing partner Bill Nixon said the company was confident of generating strong interest among investors after previous offers of shares in VCTs won a good response.
Sector watchers said Maven has built a good reputation for making successful investments in companies in areas like oil and gas.
Philip Rhoden, director at the Club Finance brokerage said: "Maven covers the whole of the UK from six regional offices, but is rare among VCT managers in having a strong presence in Scotland, giving good access to investment opportunities in the North and in particular the energy services sector."
The company said it has made seven new investments since March last year and the same number of exits.
In June, the company invested £4.25m in Fife-based HCS Control Systems.
In July last year, the company made a profitable exit from its investment in Nessco when the energy communications specialist was sold to an American firm. Mr Nixon held out the prospect of the trusts generating good returns by investing in successful companies whose earnings could be used to fund generous dividend payouts.
Investors in Venture Capital Trusts enjoy tax breaks.
Mr Nixon said the income focus of VCTs managed by Maven could be a real attraction to investors and advisers who have faced a sustained period of low interest rates since 2009.
Maven has £300m funds under management. In addition to managing trusts, the company runs the taxpayer-backed Scottish Loan Fund.
On its website, Maven says it is experiencing a high level of good quality introductions to potential investments across its UK office network.
Maven's investment portfolio also includes Glacier the acquisitive Glasgow-based engineering firm.