PARIS--(BUSINESS WIRE)--Regulatory News: Sopra Steria (Paris:SOP) (Euronext Paris: SOP), a European leader in digital transformation, announced today that it has completed its acquisition of Galitt, a consulting and solutions development firm in the payment systems and secure transactions market. As stated in the 31 August 2017 press release announcing the proposed acquisition, Sopra Steria has acquired 88.2% of the shares and voting rights in Tecfit, the holding company of Galitt, which until