Most consistently profitable bank

Measured over the last 4 years there is only one bank that has increased pre-tax profit year on year.

It is:

Standard Chartered Bank. £4,109,000,000 to £6,769,000,000

Over the last 3 years there are six:

Ahli United Bank (UK) Plc. £3,675,000 to £50,881,000
Sainsbury's Bank Plc. £5,900,000 to £39,700,000
Vanquis Bank Ltd. £8,994,000 to £44,700,000
Zenith Bank (UK) Ltd. £1,999,421 to £5,104,963
Close Brothers Ltd. £53,300,000 to £140,200,000
ABC International Bank Plc. £9,886,000 to £20,547,000.