Isn't that supposed to be a bad idea, specially for software based companies.
[1] Transferwise model: https://en.wikipedia.org/wiki/TransferWise#/media/File:Trans...
[2] The company started back in 2011. And select quotes from the article:
> A source close to TransferWise, which has been profitable since early 2017, tells me the new funding values the seven-year old company at $1.6 billion.
and,
> The company now serves over two million customers and offers 750 currency routes, seeing customers transfer more than £1 billion every month.