Ansaldo STS SpA is an Italy-based holding company, operating in the railway and underground transportation sector. The activities of Ansaldo STS are organized in two business units: Signaling engaged in the design, manufacture, supply, installation, commissioning and maintenance of systems, subsystems and components for signaling, automation, supervision and traffic control of conventional, high speed and transit lines, and Transport Systems which operates in the design, installation, integration, testing, commissioning, operation and maintenance of turnkey railway and transit transportation systems. The Company operates worldwide through its subsidiaries, such as Ansaldo STS Transportation Systems India Private Limited, Ansaldo STS USA Inc., Ansaldo STS France, Ansaldo STS Sweden AB, and Ansaldo STS Australia, among others. The Company is a part of Finmeccanica SpA.