FSS vs LFUS 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.

Littelfuse is a primary provider of circuit protection products (such as fuses and relays) for the transportation, industrial, telecommunications, and consumer electronics end markets. The company is also increasing its power semiconductor business, where it predominantly serves industrial end markets, and is breaking into electric vehicle charging infrastructure. Littelfuse has 17,000 global employees.