Secure Trust Bank, the retail banking unit of Arbuthnot Banking Group has posted a pretax profit of £26.3m for the year ended 31 December 2014, an increase of 53% compared with £17.2m a year ago.
The unit’s lending balances increased by 59% to £622m from £391m in the previous year.
Total customer numbers increased to 429,507 from 350,861 in 2013.
Arbuthnot Banking Group’s full-year profit before tax in 2014 jumped to £22.5m, a 43% rise versus £15.7m a year ago.
Arbuthnot Banking Group COO Andrew Salmon said: "Our focus is on identifying areas where we believe where we have strong core competencies and have key points of differentiation that enable us not to have to compete on head-to-head with the big banks."