By Lars Mucklejohn The fintech market is primed for a “substantial uptick” in IPO activity, according to Boston Consulting Group (BCG), as investor sentiment around UK start-ups rebounds after a bruising 2023. The global fintech sector is expected to grow roughly five times to $1.5tn (£1.2tn) in revenue by 2030, compared last year, a report from BCG and QED Investors found. It cited a “vast” upside for the sector, with some 1.5bn adults still unbanked and a further 2.8bn “underbanked”. Over the last two years, there has been 14 per cent annual growth in global fintech revenue, with firms weath…