LONDON, Sept 23 (Reuters) - Britain's Revolut said on

Tuesday it was exploring buying a U.S. bank to accelerate its

global expansion and was eyeing launching credit cards in its

home market, as the digital finance firm seeks to encroach

further onto the turf of traditional lenders.

The London-based company has emerged as the most valuable of

a crop of European financial technology firms and is seeking a

$75 billion valuation in a secondary share sale. It has 65

million customers, topping HSBC ( HSBC ), although it has a tiny

fraction of HSBC's ( HSBC ) revenue due to a focus on consumers.

Unveiling the group's new headquarters in London's Canary

Wharf financial district on Tuesday, executives said the company

planned to significantly expand its international footprint but

was committed to Britain.

"We are committed to the UK as our home country," said Nik

Storonsky, Revolut's CEO and co-founder.

Revolut is looking at whether to acquire a U.S. bank or to

apply for its own banking licence in the country, Revolut's U.S.

CEO Sid Jajodia told Reuters, confirming earlier media reports

on its U.S. ambitions.

Other Revolut executives said they hoped to obtain a UK

banking licence by the end of this year - a process that has

been running for several years - that would enable it to launch

credit cards and unsecured credit in the country.

Revolut said it would ultimately invest $13 billion over the

next five years in its global expansion, including $4 billion in

Britain. The ambition compares to Revolut's total global

revenues in 2024 of 3.1 billion pounds ($4.2 billion).

($1 = 0.7393 pounds)