By Lars Mucklejohn London-listed fintech Pensionbee has announced its expansion into the US retirement savings market as it nears profitability following a jump in customer numbers. The pensions platform said on Monday it had entered into an exclusive, non-binding term sheet with an unnamed “large, US-based global financial institution”. Pensionbee noted that the US has the world’s largest market for defined contribution pensions, with $22.5tn in assets making up around 80 per cent of the global total. Under the agreement, Pensionbee said it would create a wholly-owned subsidiary called Pensio…