* “Scale-box” to help young fintechs grow faster
* New Innovation Centre to focus private sector push
* Challenge is to retain fintechs once established
* Brexit has hit single market access for fintechs (Recasts with finance ministry on fast-track visas)
LONDON, Feb 26 (Reuters) - Britain said on Friday it would offer a fast-track visa scheme for jobs at high-growth companies after a government-backed review warned that financial technology firms will struggle with Brexit and tougher competition for global talent.
Finance minister Rishi Sunak said that now Britain has left the European Union, it wants to make sure its immigration system helps businesses attract the best hires.