The bank, which was founded in May 2009, said it hoped to raise around £75m with the initial public offering.
Aldermore said it would target customers ‘underserved by incumbent banks’ and said it had identified ‘significant, sustainable and profitable growth opportunities’.
The net proceeds from the offer will be used to support the medium-term growth of the business.
The announcement came on the same day the lender revealed its half year results. At June 30 the bank confirmed £2bn in net mortgage lending plus a further £2bn in commercial loans.
For the first half of the year the bank made a pre-tax profit of £18.6m, a 249% increase on the £5.3m profit in 2013.
Phillip Monks, chief executive officer, said: “Aldermore is a modern, legacy-free bank that challenges the established view [of] what banking should be. We deliver straightforward products and sector expertise to customers in underserved market segments that offer attractive risk-adjusted returns.
“Our offering benefits from modern digital infrastructure and proven distribution channels and is underpinned by a diversified funding base and robust capital position.
“Now in our sixth year of growth, becoming a public company is the natural next step in Aldermore’s evolution and positions us for the next stage of our development through greater access to the capital markets and enhanced profile for our brand.”
