The Essex-based institution said its stock of lending amounts to £1.1bn, little more than two years after its establishment in its current form by an investment fund managed by Royal Bank of Scotland.
It has lent £766 million to small companies and the remaining £369m to individuals through tie-ups with the likes of home improvement companies and retailers.
Shawbrook's deposit book remains dominated by private savers although the company said it has secured several seven-figure deposits from companies as it seeks to persuade them to loosen their ties with the big five institutions.
Ian Henderson, the Scot who has run Shawbrook since November, said: "We are becoming more disruptive."
The bank has taken an undisclosed capital injection from its majority backers in the RBS Special Opportunities fund, through which the part-nationalised bank itself has a stake in Shawbrook.
"Our shareholder has put in additional capital," Mr Henderson said. "All that is doing is funding the growth of the business."
The bank's growth was given a fillip by its acquisition of Singers Asset Finance last year which boosted its loan book by around £300m and gave it a presence in Scotland through an office in Glasgow's Nelson Mandela Square.
Its Scottish loan book amounts to £129.5m, some 11.3% of its total lending.
Mr Henderson said: "I was pleased to see we were punching above our weight in Scotland."
Demand for loans remains strongest in the booming south east of England, Mr Henderson said.
In Scotland its main activity is asset finance, providing lending to companies for equipment and vehicles.
But UK-wide, commercial property lending is the largest part of its operations as it benefits from the withdrawal from the sector of the established high street names, many of whom have taken large losses on loans written in the run-up to the credit crunch.
"The biggest bit of my balance sheet is now commercial real estate," Mr Henderson said.
Some business is coming directly as the Shawbrook brand gains brand recognition and some through intermediaries but a key driver is the decision of existing lenders to stop providing finance, he added.
"The big banks are saying to customers 'we loved doing business with you but head office say we can't do business any more'," Mr Henderson said.
He added he shied away from "hobbyist buy-to-let" investors, dealing only with full-time property professionals.
"We carefully underwrite all that we do," Mr Henderson said. "We have conservative loan to value treatments."
It now has 28,000 lending customers and 29,000 savings customers.
Lending demand is accelerating, he said, and reached a record £90m in July, some three times what it was lending in the middle of last year.
"Now we are seeing demonstrable signs of economic progress in the UK that will increase," Mr Henderson added.
He noted that there had been talk of a property bubble but said Shawbrook is "keeping a wary eye on it".
"We think there are substantial growth opportunities out there," he said.
Shawbrook has its roots in Whiteaway Laidlaw Bank.
RBS Equity Finance bought the bank in January 2011 and the bank was renamed Shawbrook in October 2011.
In 2012, Shawbrook bought Singers Asset Finance which was part of Singer & Friedlander, which was acquired by Kaupthing, the Icelandic bank, before it collapsed during the financial crisis of 2008.