Our goal is to become world leader in our industry by promoting a culture of quality, safety and responsibility.
It acts as lead contractor and turnkey provider on major projects worldwide.
On January 1st, 2009, we at Union Switch & Signal began a new chapter in our history by
transitioning our corporate name to Ansaldo STS USA. The new name promotes the versatility
and strength that comes from the integration of regional rail industry pioneers, with a combined
260 years of signaling experience and technological know-how, into the global leader,
We want to assure you that our legacy of quality and customer service is not diminishing with our name change, but rather it is strengthening through this unification.
Insight & Innovation
For over 125 years, Ansaldo STS USA has been known for leading the development of wayside equipment, vital relays and train systems. Today, Ansaldo STS USA is applying its unique knowledge to developing advanced rail control systems.
As a regional company of Ansaldo STS, Ansaldo STS USA serves rail and transit customers in the USA, Canada & Central & South America, with a concentrated focus on transit in China, South Korea and Taiwan.
Ansaldo STS USA is headquartered in Pittsburgh, Pennsylvania and has manufacturing facilities in South Carolina. Support and sales offices are located throughout the USA, Canada, Italy, Brazil, South Korea and China.
Ansaldo STS USA Railway Signaling Equipment (RSE) Catalog
Ansaldo STS USA delivers solutions that help meet your organization’s operating goals with the
greatest value. Expert project management assures on-time and on-budget project completion. Our
extensive organizational resources provide exceptional service and support.