SIFCO Industries (formerly known as The Steel Improvement and Forge) is a company that manufactures and supplies forgings and machined components. Its products include ring gears, compressor blades, window frames, struts, shafts, aluminum pistons, etc. The company also provides chemical processing, machining, painting, anodizing, polishing, controlled heat treatment, and other services. SIFCO Industries caters to the aerospace, defense, military, and energy sectors.