Federal Signal Corporation is a diversified industrial manufacturer that designs and supplies specialized vehicles, equipment, and safety systems for municipal, governmental, industrial, and commercial customers. Headquartered in Downers Grove, Illinois, the company is best known for its street sweepers, sewer cleaners, and emergency vehicle lighting and sirens.
No single customer accounted for 10% or more of the Company's net sales in any year within the three-year period ended December 31, 2025.