Federal Signal Corporation - Makers of safety, signaling and communications equipment, environmental vehicles, and machinery components. Information on product groups, investor relations and careers.
PK Van Bodies - Manufacturer of van bodies for trucks and cutaway chassis - fire rescues, television production mobiles, police vehicles and other specialty vehicles.
Spartan Motors, Inc. - Designs, manufactures and markets custom chassis which consist of frame assembly, engines, transmissions, electrical systems and running gears for fire trucks, motorhomes, school and transit buses and specialty vehicle chassis. (Nasdaq: SPAR).