Founded in 1901 as an early manufacturer of electric signs, Oak Brook, Ill.-based Federal Signal Corp. quickly moved into the siren business and the territory it’s best known for today safety and security systems. The company makes fire and rescue equipment ranging from high-tech lights and sirens to lift equipment for first responders and private industry.
It has diversified into other heavy-equipment industries as well, including industrial-sized cleaning equipment such as water blasters and street sweepers, as well as vacuum excavation equipment used in the repair of water mains, petroleum pipelines and exploration for buried utilities.
