FSS vs AN Comparison

Federal Signal Corp designs and manufactures products and integrated solutions for municipal, governmental, industrial, and airport customers. It operates in the segments of Environmental Solutions Group and the Safety and Security Systems Group. The Environmental Solutions group manufactures and supplies street sweeper vehicles, sewer cleaner and vacuum loader trucks, hydro-excavation trucks, high-performance water blasting equipment, dump truck bodies, and trailers. The Safety and Security Systems Group offers comprehensive systems and products such as campus and community alerting, emergency vehicles, first responder interoperable communications, and others. The company generates a majority of its revenue from the Environmental Solutions Group segment.

AutoNation is the second-largest automotive dealer in the United States, with 2025 revenue of $27.6 billion and over 240 dealerships, plus 52 collision centers. The firm also has 26 AutoNation USA used-vehicle stores, a captive lender, four auction sites, and three parts distributors across 20 states primarily in Sunbelt metropolitan areas. New-vehicle sales account for nearly half of revenue; the company also sells used vehicles, parts, and repair services as well as auto financing. The company (formerly Republic Industries) divested its waste management unit (Republic Services) in 1999 and its car rental businesses (ANC Rental) in 2000. Wayne Huizenga founded the company in the 1990s to bring the rollup acquisition strategy to auto retailing, which has proved to be a smart move.