In 1923 GRS acquired the Federal Signal Company of Albany, New York.

In 1960, GRS opened the "General Railway Signal Company de Argentina" (GRSA) division in Buenos Aires, which provided manufacture, installation and technical support of GRS railroad signalling systems in Argentina.

Among their products are railroad crossing signalling parts, branded with the GRSA logo, instead of the usual GRS.

From its founding until 1993, GRS main office and manufacturing facilities were located at 801 West Avenue in Rochester.

In 1993, it moved to two new suburban facilities: administration and engineering to Sawgrass Drive in Brighton, and manufacturing to John Street in West Henrietta.