Then you should also look at Wayve (self-driving cars, $1 billion Series C), Lighthouse (travel and rental data, $370 million Series C), Highview Power (novel energy storage, £300 million). Lots more too. I won't deny that the UK specialises in fintech, but there's a lot more going on than that.
Uber's Series C was $361M, that's the kind of money you need to put a company on the global map.