RentalStep, a Liverpool-based rental platform helping tenants to boost their credit score, has been announced as one of six winners in the first round of the HM Treasury’s Rent Recognition Challenge. The firm, a client of Santander Business Banking and an early participant in Santander’s Liverpool-based business incubator programme, has won a £100,000 grant and the opportunity to bid for further funding from the remaining £1.4m prize pot.