Countingup, a revolutionary mobile app, allowing small businesses to do their banking, bookkeeping and stay on top of their taxes, has received the backing of leading fintech investors.  The London-based fintech startup has raised a £2.3m seed round led by Forward Partners with participation from Frontline Ventures and JamJar Investments. The investors are backing the company’s vision to be the financial platform for 1m small businesses. Today, Countingup boasts more than four thousand customers.