One of the UK’s top former investment bankers, who resigned at the height of the Libor rate-rigging scandal, has launched a private equity-style company focusing on financial services.

Jerry del Missier, the former chief operating officer at Barclays, said his new firm, Copper Street Capital, will focus on "existing financial institutions or high-growth entrants seeking to bring new business models to the industry," ranging from financial technology start-ups to more traditional lenders.