Social lender Triodos Bank increased its lending and loan commitments by 73 per cent in 2009.
Over the past year, the bank increased its loan book from £207m in 2008 to £248m, and its commitment to make future loans from about £30m to about £150m.
The bank, which lends to ethical and environmental businesses as well as the charity and social enterprise sector, also had a 15 per cent increase in the number of customers.
"This has come about because of the strong position we found ourselves in at the start of the credit crunch," said Bevis Watts, head of business banking at Triodos. "We've also seen growth in some of our core markets, especially the environmental and social sectors."
Watts said that despite difficult financial times, the bank's bad debts had not increased dramatically and the number of depositors had increased.