National Broadband Ireland’s chairman David McCourt, along with his co-investors in the company that won the state’s National Broadband Plan (NBP) contract, have formed a new business set to provide outsourced IT services to telecommunications companies including NBI itself, according to company sources and documents. Three Irish companies called X3T Broadband Ltd, Granahan McCourt Capital X3T Holdings Ltd and X3T Broadband Management Ltd have reported recent activity linked to the establishment of the X3T business in Ireland. X3T’s new website says it offers technology forming the interface between infrastructure owners and telecommunications retailers, through which “ISPs [internet service providers] can…