Ansaldo STS is one of the leading technology companies operating in the global railway and mass transit transportation systems business. It is a provider of traffic management, planning, train control, and signaling systems and services. The publicly held company acts as a lead contractor and turnkey provider on major projects worldwide. Its two business units are Signalling and Transportation Solutions. The company s various business lines include high speed, main lines and freight, mass transit and light rail, computer-based interlocking, planning, supervision and traffic control, components, and operation and maintenance. Ansaldo STS operates across 28 different countries with an employee strength of over 4,200 people.